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JPH05293798A - Cutting method for frp joint part - Google Patents

Cutting method for frp joint part

Info

Publication number
JPH05293798A
JPH05293798A JP2409203A JP40920390A JPH05293798A JP H05293798 A JPH05293798 A JP H05293798A JP 2409203 A JP2409203 A JP 2409203A JP 40920390 A JP40920390 A JP 40920390A JP H05293798 A JPH05293798 A JP H05293798A
Authority
JP
Japan
Prior art keywords
cutting
flange portion
groove
frp
shaped groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2409203A
Other languages
Japanese (ja)
Other versions
JPH0698600B2 (en
Inventor
Tomio Tamura
富夫 田村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikyo Inc
Original Assignee
Daikyo Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daikyo Inc filed Critical Daikyo Inc
Priority to JP2409203A priority Critical patent/JPH0698600B2/en
Publication of JPH05293798A publication Critical patent/JPH05293798A/en
Publication of JPH0698600B2 publication Critical patent/JPH0698600B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/032—Mechanical after-treatments
    • B29C66/0326—Cutting, e.g. by using waterjets, or perforating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1286—Stepped joint cross-sections comprising at least one bevelled joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81425—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being stepped, e.g. comprising a shoulder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Moulding By Coating Moulds (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To facilitate press of a half-division body by pre-forming a surplus flange part on the outer periphery of a joint between the half-division bodies when the half-division bodies made of fiber-reinforced synthetic resin are joined together to form a hollow body. CONSTITUTION:In manufacture of a hollow body by joining together half-division bodies 1 and 2 made of fiber-reinforced synthetic resin, surplus flange parts 11 and 21 are pre-formed on the outer periphery of a joint between the half- division bodies 1 and 2. A V-groove is formed in the scheduled cutting position of the flange part 21 of one half-division body 2. Cutting by means of a water jet is effected starting from the opposite side of the V-groove after adhesion of the two parts to each other. This method provides an excellent cut end face as a cutting speed high enough to prevent impedance of productivity is ensured when a special material, such as FRP, is cut.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は繊維強化合成樹脂（以
下、ＦＲＰという）製判割体を互いに接合して中空体を
制作する場合の接合フランジ部分の切断方法に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cutting a joint flange portion when fiber-reinforced synthetic resin (hereinafter referred to as FRP) slit bodies are joined to each other to produce a hollow body.

【０００２】[0002]

【従来の技術】従来、中空体を接合する場合、判割体の
接合端面に接着剤を介在させて両者を突き合わせて接合
させるが、その際接合部の仕上がりを綺麗にするため
と、治具による押えが必要であり、また治具セット時の
位置決めの必要上接合部外周に余分のフランジ部を設け
ることが提案されるが、接合後このフランジ部を切断す
る必要が生ずる。この切断手段としてウォータジェット
の使用が推奨されるが、このフランジ部は治具での押圧
の必要強度上、厚手となり、しかも中空体の表面仕上げ
により塗装膜が存在するために、切断しにくく、切断速
度を上げるとＦＲＰ中のガラス繊維の影響を受けて裏面
の切断端面に欠けや膨れが生じることとなる。したがっ
て、良好な切断端面を確保するには現状のウォータジェ
ットでは１mm/sが限界速度となり、量産性に欠ける問題
がある。2. Description of the Related Art Conventionally, in the case of joining hollow bodies, an adhesive agent is intervened on the joint end surface of the slit body to bring them into contact with each other. It is proposed to provide an extra flange portion on the outer circumference of the joint due to the necessity of pressing with the jig and the necessity of positioning during jig setting, but it is necessary to cut this flange portion after joining. Although it is recommended to use a water jet as this cutting means, this flange part is thick due to the required strength of pressing with a jig, and since the coating film is present due to the surface finish of the hollow body, it is difficult to cut. When the cutting speed is increased, the glass fiber in the FRP is affected, and the cut end surface on the back surface is chipped or swollen. Therefore, in order to secure a good cutting end surface, the current water jet has a limit speed of 1 mm / s, which causes a problem of lack of mass productivity.

【０００３】[0003]

【発明が解決しようとする課題】そこで、本発明はウォ
ータジェットという切断手段を用い、ＦＲＰという特定
の材料を切断する場合に量産性を阻害しない切断速度を
確保しつつ良好な切断端面を得ることができる切断方法
を提供することを課題とする。Therefore, the present invention uses a water jet cutting means to obtain a good cutting end face while securing a cutting speed that does not hinder mass productivity when cutting a specific material called FRP. It is an object to provide a cutting method capable of cutting.

【０００４】[0004]

【課題を解決するための手段】本発明は切断位置の裏面
側に切断方向に相応してＶ字溝を形成すると、ウォータ
ジェットにより量産性を害しない速度で厚手のＦＲＰフ
ランジ部を欠けや膨れ面なく切断することができること
に着目してなされたもので、繊維強化合成樹脂製判割体
を互いに接合して中空体を制作するに当たり、各判割体
の接合部外周に余分のフランジ部を予め形成し、その一
方の判割体のフランジ部の予定切断位置にはＶ字溝を形
成しておき、両部品接着後Ｖ字溝の反対側からウォータ
ジェットで切断することを要旨とするＦＲＰ接合部品の
切断方法にある。ここで、本発明方法が適用されるＦＲ
Ｐ製品の代表例としては一般にＳＭＣ成形により製造さ
れる自動車スポイラーなど中空体が挙げられる。各判割
体の外周に設けられるフランジ部は全周であっても、適
宜間隔をおいて配置されてもよい。その大きさは判割体
の治具による押圧に必要な厚みと幅を有していればよ
い。通常、製品肉厚と同程度であってよい。According to the present invention, when a V-shaped groove is formed on the back surface side of the cutting position in accordance with the cutting direction, the thick FRP flange portion is chipped or swollen by the water jet at a speed that does not impair mass productivity. It was made paying attention to the fact that it is possible to cut without a face.When joining fiber-reinforced synthetic resin slits to each other to make a hollow body, an extra flange is formed on the outer periphery of the joint of each slit. An FRP that is formed in advance and has a V-shaped groove formed at the planned cutting position of the flange portion of one of the slits, and cuts with a water jet from the opposite side of the V-shaped groove after adhering both components. It is in the method of cutting the joint parts. Here, the FR to which the method of the present invention is applied
A typical example of the P product is a hollow body such as an automobile spoiler generally manufactured by SMC molding. The flange portion provided on the outer circumference of each slit body may be the entire circumference or may be arranged at appropriate intervals. The size may have a thickness and a width necessary for pressing the slit body by a jig. Generally, it may be as thick as the product thickness.

【０００５】[0005]

【作用】本発明によれば、各ＦＲＰ判割体の外周に設け
たフランジ部の所定切断位置に裏面側からＶ字状溝を設
けたので、その溝周辺は図４に示すように、ガラス繊維
は溝底部に湾曲して凝集し、他方溝開口周縁は樹脂リッ
チの状態になる。したがって、溝底側からのウォータジ
ェットは集中的にガラス繊維を切断し、その衝撃は溝開
口に伝達されるが、樹脂リッチであるため、欠けを生ず
ることがない。According to the present invention, since a V-shaped groove is provided from the back surface side at a predetermined cutting position of the flange portion provided on the outer periphery of each FRP slit body, the periphery of the groove is made of glass as shown in FIG. The fibers are curved and aggregated at the groove bottom, while the groove opening peripheral edge is in a resin-rich state. Therefore, the water jet from the groove bottom side intensively cuts the glass fiber and the impact is transmitted to the groove opening, but since it is rich in resin, no chipping occurs.

【０００６】以下、本発明を添付図面に示す具体例に基
づき、詳細に説明する。The present invention will be described in detail below with reference to specific examples shown in the accompanying drawings.

【実施例】図１および図２は本発明が適用される自動車
スポイラーＳの上判割体と下判割体の全体を示す平面図
で、斜線部は互いに接合されるフランジ部分を示す。即
ち、上判割体１は下判割体２との突き合わせ端面の全周
にフランジ部１１と２１を形成するとともに、上判割体
１のフランジ部１１にはその中央部と両側に位置決め用
凹凸部１３を突設してある。図５は図１および図２の上
下判割体を接合するための接着治具の断面図で、上下フ
ランジ部１１および１２を挟み、そのフランジ部周縁を
押圧する上下加熱ブロック４および５から形成されてい
る。図３は図５の接着治具によって接合してなる中空体
の部分断面図で、上下判割体１と２をその突き合わせ面
とその外周から水平に突出した２mm肉厚のフランジ部１
１および１２とを接着剤層３を介して衝合して接着して
おり、接着剤代は０.５mm以下に設定している。下判割
体２のフランジ部２１裏面には仕上げラインＬ１から１
〜１.５mmの間隔をおいて設定された切断線Ｌ２に相応
して外縁を延びる幅０.８mmのＶ字溝２２が形成され、
通常０.５Ｒ程度の程度の底部を有している。このＶ字
溝２２の周辺は図４に示すように、ガラス繊維は溝底部
近傍で湾曲して凝集し、他方溝開口周縁は樹脂リッチの
状態になっている。そこで、溝底側からノズル径０.２
５mmφで、約３５００kg/平方cmエネルギーを有するウォ
ータジェットを切断線Ｌ２に沿って６０〜７０mm/sの速
度で移動させると、集中的にガラス繊維を切断し、その
衝撃は溝開口に伝達されるが、樹脂リッチであるため、
欠けを生ずることがない。この切断後はＶ字溝２２から
仕上げラインＬ１のまで研磨される。1 and 2 are plan views showing the entire upper and lower split bodies of an automobile spoiler S to which the present invention is applied. The hatched portions show flange portions joined to each other. That is, the upper slit body 1 is formed with the flange portions 11 and 21 on the entire circumference of the abutting end face with the lower slit body 2, and the flange portion 11 of the upper slit body 1 is used for positioning at the central portion and both sides thereof. The uneven portion 13 is provided so as to project. FIG. 5 is a cross-sectional view of an adhesive jig for joining the upper and lower split bodies of FIGS. 1 and 2, which is formed from upper and lower heating blocks 4 and 5 that sandwich upper and lower flange portions 11 and 12 and press the peripheral edges of the flange portions. Has been done. FIG. 3 is a partial cross-sectional view of a hollow body joined by the bonding jig shown in FIG. 5, in which the upper and lower split bodies 1 and 2 horizontally project from the abutting surface and the outer periphery of the flange portion 1 having a thickness of 2 mm.
1 and 12 are abutted against each other through the adhesive layer 3 to be adhered, and the adhesive margin is set to 0.5 mm or less. On the rear surface of the flange portion 21 of the lower split body 2, finish lines L1 to 1
A V-shaped groove 22 having a width of 0.8 mm extending along the outer edge is formed corresponding to the cutting line L2 set at an interval of ~ 1.5 mm.
It usually has a bottom of about 0.5R. As shown in FIG. 4, around the V-shaped groove 22, the glass fibers are curved and aggregated in the vicinity of the groove bottom, while the groove opening peripheral edge is in a resin-rich state. Therefore, the nozzle diameter is 0.2 from the bottom of the groove.
When a water jet having an energy of about 3500 kg / square cm at 5 mmφ is moved along the cutting line L2 at a speed of 60 to 70 mm / s, the glass fiber is intensively cut, and the impact is transmitted to the groove opening. However, because it is resin-rich,
There is no chipping. After this cutting, polishing is performed from the V-shaped groove 22 to the finishing line L1.

【０００７】[0007]

【発明の効果】以上の説明で明らかなように、本発明に
よれば、繊維強化合成樹脂製判割体を互いに接合して中
空体を制作するに当たり、各判割体の接合部外周に余分
のフランジ部を予め形成したので、判割体の押圧を容易
とし、しかもその一方の判割体のフランジ部の予定切断
位置にはＶ字溝を形成して、その底部近傍にガラス繊維
を集めたので、小さなエネルギーで切断することができ
る。したがって、両部品接着後Ｖ字溝の反対側からウォ
ータジェットで切断速度を上げて切断しても厚手のＦＲ
Ｐでも切断端面に欠けおよび膨れを生ずることがなく、
きれいに切断することができる。As is apparent from the above description, according to the present invention, when the fiber-reinforced synthetic resin slits are joined to each other to produce a hollow body, an extra space is provided on the outer periphery of the joint of each slit. Since the flange portion of is formed in advance, it is easy to press the slit body, and a V-shaped groove is formed at the planned cutting position of the flange portion of one of the slit bodies to collect the glass fibers in the vicinity of the bottom portion. Since it can be cut with a small amount of energy. Therefore, even if both parts are bonded and the cutting speed is increased with a water jet from the opposite side of the V-shaped groove, the thick FR
Even with P, the cut end surface does not chip or swell,
It can be cut cleanly.

【図面の簡単な説明】[Brief description of drawings]

【図１】 本発明が適用される自動車スポイラーＳの上
判割体の全体を示す平面図。FIG. 1 is a plan view showing the entire upper split body of an automobile spoiler S to which the present invention is applied.

【図２】 本発明が適用される自動車スポイラーＳの下
判割体の全体を示す平面図。FIG. 2 is a plan view showing the entire lower split body of an automobile spoiler S to which the present invention is applied.

【図３】 図１および図２の上下判割体を接合してなる
中空体の部分断面図。FIG. 3 is a partial cross-sectional view of a hollow body formed by joining the upper and lower split bodies of FIGS. 1 and 2.

【図４】 図３の要部の断面拡大図。4 is an enlarged cross-sectional view of the main part of FIG.

【図５】 本発明で用いる接着治具の断面図。FIG. 5 is a sectional view of an adhesive jig used in the present invention.

【符号の説明】[Explanation of symbols]

１…上判割体、２…下判割体、１１、２１…フランジ
部、１３…位置決め用凹凸部、２２…Ｖ字溝DESCRIPTION OF SYMBOLS 1 ... Upper split body, 2 ... Lower split body, 11, 21 ... Flange part, 13 ... Positioning uneven | corrugated part, 22 ... V-shaped groove

─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成４年１０月７日[Submission date] October 7, 1992

【手続補正１】[Procedure Amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】全文[Name of item to be corrected] Full text

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【書類名】 明細書[Document name] Statement

【発明の名称】 ＦＲＰ接合部品の切断方法[Title of Invention] Method for cutting FRP joint parts

【特許請求の範囲】[Claims]

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は繊維強化合成樹脂（以
下、ＦＲＰという）製半割体を互いに接合して中空体を
制作する場合の接合フランジ部分の切断方法に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of cutting a joint flange portion in the case where a half body made of fiber reinforced synthetic resin (hereinafter referred to as FRP) is joined to each other to produce a hollow body.

【０００２】[0002]

【従来の技術】従来、中空体を接合する場合、半割体の
接合端面に接着剤を介在させて両者を突き合わせて接合
させるが、その際接合部の仕上がりを綺麗にするため
と、治具による押えが必要であり、また治具セット時の
位置決めの必要上接合部外周に余分のフランジ部を設け
ることが提案されるが、接合後このフランジ部を切断す
る必要が生ずる。この切断手段としてウォータジェット
の使用が推奨されるが、このフランジ部は治具での押圧
の必要強度上、厚手となり、しかも中空体の表面仕上げ
により塗装膜が存在するために、切断しにくく、切断速
度を上げるとＦＲＰ中のガラス繊維の影響を受けて裏面
の切断端面に欠けや膨れが生じることとなる。したがっ
て、良好な切断端面を確保するには現状のウォータジェ
ットでは１mm/sが限界速度となり、量産性に欠ける問題
がある。2. Description of the Related Art Conventionally, in the case of joining hollow bodies, an adhesive agent is interposed on the joining end faces of the half-divided bodies to bring them into contact with each other. It is proposed to provide an extra flange portion on the outer circumference of the joint due to the necessity of pressing with the jig and the necessity of positioning during jig setting, but it is necessary to cut this flange portion after joining. Although it is recommended to use a water jet as this cutting means, this flange part is thick due to the required strength of pressing with a jig, and since the coating film is present due to the surface finish of the hollow body, it is difficult to cut. When the cutting speed is increased, the glass fiber in the FRP is affected, and the cut end surface on the back surface is chipped or swollen. Therefore, in order to secure a good cutting end surface, the current water jet has a limit speed of 1 mm / s, which causes a problem of lack of mass productivity.

【０００３】[0003]

【発明が解決しようとする課題】そこで、本発明はウォ
ータジェットという切断手段を用い、ＦＲＰという特定
の材料を切断する場合に量産性を阻害しない切断速度を
確保しつつ良好な切断端面を得ることができる切断方法
を提供することを課題とする。Therefore, the present invention uses a water jet cutting means to obtain a good cutting end face while securing a cutting speed that does not hinder mass productivity when cutting a specific material called FRP. It is an object to provide a cutting method capable of cutting.

【０００４】[0004]

【課題を解決するための手段】本発明は切断位置の裏面
側に切断方向に相応してＶ字溝を形成すると、ウォータ
ジェットにより量産性を害しない速度で厚手のＦＲＰフ
ランジ部を欠けや膨れ面なく切断することができること
に着目してなされたもので、繊維強化合成樹脂製半割体
を互いに接合して中空体を制作するに当たり、各半割体
の接合部外周に余分のフランジ部を予め形成し、その一
方の半割体のフランジ部の予定切断位置にはＶ字溝を形
成しておき、両部品接着後Ｖ字溝の反対側からウォータ
ジェットで切断することを要旨とするＦＲＰ接合部品の
切断方法にある。ここで、本発明方法が適用されるＦＲ
Ｐ製品の代表例としては一般にＳＭＣ成形により製造さ
れる自動車スポイラーなど中空体が挙げられる。各半割
体の外周に設けられるフランジ部は全周であっても、適
宜間隔をおいて配置されてもよい。その大きさは半割体
の治具による押圧に必要な厚みと幅を有していればよ
い。通常、製品肉厚と同程度であってよい。According to the present invention, when a V-shaped groove is formed on the back surface side of the cutting position in accordance with the cutting direction, the thick FRP flange portion is chipped or swollen by the water jet at a speed that does not impair mass productivity. It was made paying attention to the fact that it can be cut without a face.When joining fiber-reinforced synthetic resin halves to each other to create a hollow body, an extra flange portion is provided on the outer periphery of the joint of each half-body. The FRP is formed in advance, and a V-shaped groove is formed at an expected cutting position of the flange portion of one half of the half-divided body, and after the components are adhered, cutting is performed with a water jet from the opposite side of the V-shaped groove. It is in the method of cutting the joint parts. Here, the FR to which the method of the present invention is applied
A typical example of the P product is a hollow body such as an automobile spoiler generally manufactured by SMC molding. The flange portion provided on the outer circumference of each half body may be the entire circumference or may be arranged at appropriate intervals. The size may have a thickness and a width necessary for pressing the half-divided body with a jig. Generally, it may be as thick as the product thickness.

【０００５】[0005]

【作用】本発明によれば、各ＦＲＰ半割体の外周に設け
たフランジ部の所定切断位置に裏面側からＶ字状溝を設
けたので、その溝周辺は図４に示すように、ガラス繊維
は溝底部に湾曲して凝集し、他方溝開口周縁は樹脂リッ
チの状態になる。したがって、溝底側からのウォータジ
ェットは集中的にガラス繊維を切断し、その衝撃は溝開
口に伝達されるが、樹脂リッチであるため、欠けを生ず
ることがない。According to the present invention, since a V-shaped groove is provided from the back surface side at a predetermined cutting position of the flange portion provided on the outer periphery of each FRP half body, the periphery of the groove is made of glass as shown in FIG. The fibers are curved and aggregated at the groove bottom, while the groove opening peripheral edge is in a resin-rich state. Therefore, the water jet from the groove bottom side intensively cuts the glass fiber and the impact is transmitted to the groove opening, but since it is rich in resin, no chipping occurs.

【０００６】以下、本発明を添付図面に示す具体例に基
づき、詳細に説明する。The present invention will be described in detail below with reference to specific examples shown in the accompanying drawings.

【実施例】図１および図２は本発明が適用される自動車
スポイラーＳの上半割体と下半割体の全体を示す平面図
で、斜線部は互いに接合されるフランジ部分を示す。即
ち、上半割体１は下半割体２との突き合わせ端面の全周
にフランジ部１１と２１を形成するとともに、上半割体
１のフランジ部１１にはその中央部と両側に位置決め用
凹凸部１３を突設してある。図５は図１および図２の上
下半割体を接合するための接着治具の断面図で、上下フ
ランジ部１１および１２を挟み、そのフランジ部周縁を
押圧する上下加熱ブロック４および５から形成されてい
る。図３は図５の接着治具によって接合してなる中空体
の部分断面図で、上下半割体１と２をその突き合わせ面
とその外周から水平に突出した２mm肉厚のフランジ部１
１および１２とを接着剤層３を介して衝合して接着して
おり、接着剤代は０.５mm以下に設定している。下半割
体２のフランジ部２１裏面には仕上げラインＬ１から１
〜１.５mmの間隔をおいて設定された切断線Ｌ２に相応
して外縁を延びる幅０.８mmのＶ字溝２２が形成され、
通常０.５Ｒ程度の程度の底部を有している。このＶ字
溝２２の周辺は図４に示すように、ガラス繊維は溝底部
近傍で湾曲して凝集し、他方溝開口周縁は樹脂リッチの
状態になっている。そこで、溝底側からノズル径０.２
５mmφで、約３５００kg/平方cmエネルギーを有するウォ
ータジェットを切断線Ｌ２に沿って６０〜７０mm/sの速
度で移動させると、集中的にガラス繊維を切断し、その
衝撃は溝開口に伝達されるが、樹脂リッチであるため、
欠けを生ずることがない。この切断後はＶ字溝２２から
仕上げラインＬ１のまで研磨される。1 and 2 are plan views showing the whole of an upper half body and a lower half body of an automobile spoiler S to which the present invention is applied. Shaded portions indicate flange portions joined to each other. That is, the upper half-split body 1 is formed with the flange portions 11 and 21 on the entire circumference of the abutting end surface with the lower half-split body 2, and the flange portion 11 of the upper half-split body 1 is positioned at the central portion and both sides thereof. The uneven portion 13 is provided so as to project. FIG. 5 is a cross-sectional view of an adhesive jig for joining the upper and lower halves of FIGS. 1 and 2, which is formed from upper and lower heating blocks 4 and 5 that sandwich the upper and lower flange portions 11 and 12 and press the peripheral edges of the flange portions. Has been done. FIG. 3 is a partial cross-sectional view of a hollow body joined by the bonding jig shown in FIG. 5, in which the upper and lower halves 1 and 2 horizontally project from the abutting surface and the outer periphery thereof and the flange portion 1 having a thickness of 2 mm.
1 and 12 are abutted against each other through the adhesive layer 3 to be adhered, and the adhesive margin is set to 0.5 mm or less. On the rear surface of the flange portion 21 of the lower half-split body 2, from the finishing line L1 to 1
A V-shaped groove 22 having a width of 0.8 mm extending along the outer edge is formed corresponding to the cutting line L2 set at an interval of ~ 1.5 mm.
It usually has a bottom of about 0.5R. As shown in FIG. 4, around the V-shaped groove 22, the glass fibers are curved and aggregated in the vicinity of the groove bottom, while the groove opening peripheral edge is in a resin-rich state. Therefore, the nozzle diameter is 0.2 from the bottom of the groove.
When a water jet having an energy of about 3500 kg / square cm at 5 mmφ is moved along the cutting line L2 at a speed of 60 to 70 mm / s, the glass fiber is intensively cut, and the impact is transmitted to the groove opening. However, because it is resin-rich,
There is no chipping. After this cutting, polishing is performed from the V-shaped groove 22 to the finishing line L1.

【０００７】[0007]

【発明の効果】以上の説明で明らかなように、本発明に
よれば、繊維強化合成樹脂製半割体を互いに接合して中
空体を制作するに当たり、各半割体の接合部外周に余分
のフランジ部を予め形成したので、半割体の押圧を容易
とし、しかもその一方の半割体のフランジ部の予定切断
位置にはＶ字溝を形成して、その底部近傍にガラス繊維
を集めたので、小さなエネルギーで切断することができ
る。したがって、両部品接着後Ｖ字溝の反対側からウォ
ータジェットで切断速度を上げて切断しても厚手のＦＲ
Ｐでも切断端面に欠けおよび膨れを生ずることがなく、
きれいに切断することができる。As is apparent from the above description, according to the present invention, when the fiber-reinforced synthetic resin halves are joined to each other to produce a hollow body, an extra space is provided on the outer periphery of the joint portion of each half. Since the flange portion of is formed in advance, it is easy to press the half body, and furthermore, a V-shaped groove is formed at the planned cutting position of the flange portion of one of the half bodies to collect the glass fibers in the vicinity of the bottom portion. Since it can be cut with a small amount of energy. Therefore, even if both parts are bonded and the cutting speed is increased with a water jet from the opposite side of the V-shaped groove, the thick FR
Even with P, the cut end surface does not chip or swell,
It can be cut cleanly.

【図面の簡単な説明】[Brief description of drawings]

【図１】 本発明が適用される自動車スポイラーＳの上
半割体の全体を示す平面図。FIG. 1 is a plan view showing an entire upper half of an automobile spoiler S to which the present invention is applied.

【図２】 本発明が適用される自動車スポイラーＳの下
半割体の全体を示す平面図。FIG. 2 is a plan view showing an entire lower half of an automobile spoiler S to which the present invention is applied.

【図３】 図１および図２の上下半割体を接合してなる
中空体の部分断面図。FIG. 3 is a partial cross-sectional view of a hollow body formed by joining the upper and lower halves of FIGS. 1 and 2.

【図４】 図３の要部の断面拡大図。4 is an enlarged cross-sectional view of a main part of FIG.

【図５】 本発明で用いる接着治具の断面図。FIG. 5 is a sectional view of an adhesive jig used in the present invention.

【符号の説明】 １…上半割体、２…下半割体、１１、２１…フランジ
部、１３…位置決め用凹凸部、２２…Ｖ字溝[Explanation of Codes] 1 ... Upper half-split body, 2 ... Lower half-split body, 11, 21 ... Flange portion, 13 ... Positioning uneven portion, 22 ... V-shaped groove

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 繊維強化合成樹脂製判割体を互いに接合
して中空体を製作するに当たり、 各判割体の接合部外周に余分のフランジ部を予め形成
し、 その一方の判割体のフランジ部の予定切断位置にはＶ字
溝を形成しておき、 両部品接着後Ｖ字溝の反対側からウォータジェットで切
断することを特徴とするＦＲＰ接合部品の切断方法。1. When manufacturing a hollow body by joining fiber-reinforced synthetic resin slit bodies to each other, an extra flange portion is formed in advance on the outer periphery of the joint portion of each slit body, and one of the slit bodies is formed. A method for cutting an FRP-bonded component, characterized in that a V-shaped groove is formed at an expected cutting position of a flange portion, and after bonding both components, cutting is performed with a water jet from the opposite side of the V-shaped groove.
JP2409203A 1990-12-28 1990-12-28 FRP joint parts cutting method Expired - Lifetime JPH0698600B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2409203A JPH0698600B2 (en) 1990-12-28 1990-12-28 FRP joint parts cutting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2409203A JPH0698600B2 (en) 1990-12-28 1990-12-28 FRP joint parts cutting method

Publications (2)

Publication Number Publication Date
JPH05293798A true JPH05293798A (en) 1993-11-09
JPH0698600B2 JPH0698600B2 (en) 1994-12-07

Family

ID=18518557

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2409203A Expired - Lifetime JPH0698600B2 (en) 1990-12-28 1990-12-28 FRP joint parts cutting method

Country Status (1)

Country Link
JP (1) JPH0698600B2 (en)

Also Published As

Publication number Publication date
JPH0698600B2 (en) 1994-12-07

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