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CN104842063A - Welding machining method - Google Patents

Welding machining method Download PDF

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Publication number
CN104842063A
CN104842063A CN201510257450.3A CN201510257450A CN104842063A CN 104842063 A CN104842063 A CN 104842063A CN 201510257450 A CN201510257450 A CN 201510257450A CN 104842063 A CN104842063 A CN 104842063A
Authority
CN
China
Prior art keywords
weldment
taper seat
welding
friction
tapering
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.)
Pending
Application number
CN201510257450.3A
Other languages
Chinese (zh)
Inventor
姜迪辉
郑巨州
刘子民
周义
潘海雕
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.)
Gulifa Electrical Co Ltd
Gulifa Group Co Ltd
Original Assignee
Gulifa Electrical Co Ltd
Gulifa Group Co Ltd
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 Gulifa Electrical Co Ltd, Gulifa Group Co Ltd filed Critical Gulifa Electrical Co Ltd
Priority to CN201510257450.3A priority Critical patent/CN104842063A/en
Publication of CN104842063A publication Critical patent/CN104842063A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B23K20/123Controlling or monitoring the welding process
    • B23K20/1235Controlling or monitoring the welding process with temperature control during joining
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/129Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding specially adapted for particular articles or workpieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/36Electric or electronic devices
    • B23K2101/38Conductors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/08Non-ferrous metals or alloys
    • B23K2103/10Aluminium or alloys thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/08Non-ferrous metals or alloys
    • B23K2103/12Copper or alloys thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/18Dissimilar materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

The invention discloses a welding machining method, and belongs to a friction welding machining method for machining of an electric power connector. The welding machining method comprises the steps that copper materials and aluminum materials serve as raw materials, the cutting working procedure, the reshaping working procedure, the thermal treatment working procedure, the turning working procedure and the friction welding working procedure are conducted, and machining is accomplished through high-speed rotation friction sweating soldering. According to the welding machining method, by the adoption of the simple working procedures, the welding area is increased, a welded surface can be machined to form a curved surface, the purpose of improving the mechanical strength and the electrical current-carrying capacity of the electric power connector is achieved, and the welding machining method has the advantages that the resistance is low, and the temperature rise is low.

Description

A kind of welding processing
Technical field
The present invention relates to a kind of welding processing, belong to the technical field of power industry connector method of attachment, belong to power industry connector specifically and utilize friction welding method of attachment to carry out the technical field of the method connected.
Background technology
At present, for the friction welding method of electric connector, the copper material of unlike material, aluminium weld together by general employing friction-welding machine, as smooth bright and clean in copper, aluminium one end end face, two burnishing surfaces weld together, but this Welding Structure mode, because solder bond face is smooth, in friction welding process, coaxial centre point coefficient of friction is little, and edge coefficient of friction is large, causes welding temperature uneven, affect welding quality, mechanical strength is low, and its welded section is little, welding transition place current-carrying is relatively little, causes product current-carrying capacity to be difficult to improve; Easily there is phenomenon of rupture in product, affect electric power netting safe running in the middle of operation.
Summary of the invention
The present invention is directed to the deficiencies in the prior art and provide a kind of welding processing, simple to realize concrete operations, add welding transition face, solder side temperature is consistent, improves solder bond quality, and solder side is wrapping to another weldment due to a weldment, greatly improve mechanical strength, electric current-carrying capacity is also significantly improved, and has resistance low, the object that temperature rise is little.
For reaching described object technical scheme of the present invention be:
A kind of welding processing, with copper, aluminium for raw material, comprise the first weldment and the second weldment, its welding step is as follows:
(1) cut-bar and aluminium bar are processed into the length of required size;
(2) shaping-employing stamping machine or hydraulic press are by the first shaping matrix taper seat in weldment one end; By the second shaping convex taper seat in weldment one end; The tapering of this convex taper seat is less than the tapering of this matrix taper seat;
(3) heat treatment-employing vacuum drying oven annealing, removes material stress;
(4) dirt and the oxide layer on Vehicle Processing-remove respectively the first weldment matrix taper seat and the second weldment convex taper seat surface, guarantee that cambered surface is clean and tidy, non-oxidation;
(5) friction welding-by the second weldment clamping is in the movable clamp of welding machine, and convex taper seat entirety exposes fixture mouth 4 millimeters-8 millimeters clamping work pieces bars; By the first weldment clamping in the rolling clamp of welding machine, matrix taper seat entirety exposes fixture mouth 3 millimeters-6 millimeters clamping work pieces bars; Start welding, now the first weldment starts clamping and rotates, and the second weldment clamping is also moved to the first weldment, when the second weldment welding contact surface is from the first weldment welding contact surface to 0.5 millimeter-1 millimeter, the slow continuous of this second weldment moves, and two weldments start friction; After the first weldment and the second weldment start to contact, first be the friction of coaxial center point cantact, whole solder side friction is reached along with the second weldment continues to move, heat is produced by spin friction, workpiece temperature raises, when reaching hot melting temperature 550-600 DEG C, the first weldment stops the rotation, and friction warm-up time controls in 2-5 second; Now the second weldment device propelling pressure, maintenance pressure 1-5 unclamps fixture after second, completes welding.
The tapering of this convex taper seat is 0.2-0.8; The tapering of this matrix taper seat is 1-1.5.
The tapering of this convex taper seat is 0.8; The tapering of this matrix taper seat is 1.
Adopt concavo-convex tapering to welded blank, solder side, or not a plane, adds welded section and amasss, make welded section not on a plane, add weld strength.
When carrying out deformation processing to the workpiece after welding, its intensity increases.
It is 65-75 ° that this first weldment matrix taper seat circular cone adds angle; It is 35-40 ° that this second weldment convex taper seat circular cone adds angle.
It is 65 ° that this first weldment matrix taper seat circular cone adds angle; It is 40 ° that this second weldment convex taper seat circular cone adds angle.
When during this step (five) welding, this solder side bulk temperature reaches 600 DEG C, this first weldment stops the rotation.
During this step (five) welding, friction warm-up time controls to be 2 seconds, pressurize 1.5 seconds.
Technical scheme of the present invention is adopted to overcome the defect of prior art, provide a kind of welding processing, during friction welding, simple to operate, coaxial centre point is adopted first to contact spin friction, along with center of circle frictional heating, spin friction under second weldment continuous, to whole solder side frictional heating, reach solder side temperature consistent, improve the solder bond quality of electric connector, welded section and mechanical strength and electric current-carrying capacity, there is resistance low, the advantage that temperature rise is little, has positive effect to lifting distribution operation power.
Accompanying drawing explanation
Fig. 1 is the present invention first weldment structural representation;
Fig. 2 is the present invention second weldment structural representation;
Fig. 3 is the structural representation of present pre-ferred embodiments when utilizing copper aluminium welding.
Number in the figure explanation
1. the first weldment;
2. the second weldment;
3. welding transition place;
11. first weldment welding contact surfaces;
22. second weldment welding contact surfaces.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical solution of the present invention is described in detail as follows.
As shown in Fig. 1, Fig. 2 and Fig. 3, a kind of welding processing, relate to the friction welding processing method of processing electric connector, its first weldment 1 and second weldment 2 being raw material with copper, aluminium, this copper material is not less than 99.7% of copper content; This aluminium is not less than 99.5% of aluminum content.Its welding step is as follows:
(1) cut-bar and aluminium bar are processed into the length of required size;
(2) shaping-employing stamping machine or hydraulic press are by the first shaping matrix taper seat in weldment 1 one end (or right-hand member); By the second shaping convex taper seat in weldment one end (or left end); The tapering of this convex taper seat is less than the tapering of this matrix taper seat; Tapering refers to the ratio of the basal diameter of circular cone and cone height.
The tapering of this convex taper seat is 0.2-0.8; The tapering of this matrix taper seat is 1-1.5.The tapering being preferably this convex taper seat is 0.8; The tapering of this matrix taper seat is 1.
It is 65-75 ° that this first weldment matrix taper seat circular cone adds angle a; It is 35-40 ° that this second weldment convex taper seat circular cone adds angle b.Being preferably this first weldment matrix taper seat circular cone, to add angle a be 65 °; It is 40 ° that this second weldment convex taper seat circular cone adds angle b.Here circular cone adds angle and refers to and add angle between cone central axis and cone inclined-plane; As Fig. 1 or Fig. 2.
(3) heat treatment-employing vacuum drying oven annealing, removes material stress;
(4) dirt and the oxide layer on Vehicle Processing-remove respectively the first weldment matrix taper seat and the second weldment convex taper seat surface, guarantee that cambered surface is clean and tidy, non-oxidation;
(5) friction welding-by the second weldment 2 clamping (in right fixture) in the movable clamp of welding machine, convex taper seat entirety exposes fixture mouth 4 millimeters-8 millimeters clamping work pieces bars; By the first weldment 1 clamping (in left fixture) in the rolling clamp of welding machine, matrix taper seat entirety exposes fixture mouth 3 millimeters-6 millimeters clamping work pieces bars; Starting friction welds, now the first weldment 1 starts clamping rotation, second weldment 2 clamps and moves (quick work is entered) to the first weldment 1, when the second weldment 2 weld contact surface 22 weld contact surface 11 to 0.5 millimeters-1 millimeter from the first weldment 1 time, this second weldment 2 slowly continuous moves (work is entered), and two weldments start friction; After the first weldment 1 and the second weldment 2 start to contact, first be coaxial center point cantact friction (heating), whole solder side friction is reached along with the second weldment 2 continues mobile (work is entered), heat is produced by spin friction, workpiece temperature raises, when reaching hot melting temperature (namely solder side bulk temperature reaches) 550-600 DEG C, the first weldment 1 stops the rotation (when preferably this solder side bulk temperature reaches 600 DEG C when soldered, this first weldment 1 stops the rotation), and friction warm-up time controls in 2-5 second; Now the second weldment 2 device propelling pressure, pressurize 1-5 rear jig second unclamps (warm-up time that preferably rubs when soldered controls to be 2 seconds, pressurize 1.5 seconds), completes welding.
In sum; The present invention relates to the friction welding processing method of processing electric connector, with copper, aluminium for raw material, be welded by operation processing such as cutting, shaping, heat treatment, Vehicle Processing, friction weldings.
1, above-mentioned copper material adopts copper content 99.7% and above material or oxygen-free copper, aluminium employing aluminum content 99.5% and above material or aluminum alloy materials;
2, adopt the mode of stamping-out or cutting, bar and aluminium bar are processed into the length of required size;
3, (or a) size Control is at 65 ° at matrix conical surface angle, and the second weldment 2 convex taper seat b (or convex conical surface angle b) size Control is at 40 ° by the first weldment 1 matrix taper seat a to adopt stamping machine or hydraulic press;
The wherein control of a, b size, friction welding processing mode is heat under main shaft High Rotation Speed drives solder side contact friction continuous, as the first weldment 1 matrix taper seat a control too small, during solder side friction, coefficient of friction is little, and friction temperature does not reach mutually fused, affects welding quality.As excessive in controlled, after welding, solder side is little;
4, adopt vacuum drying oven heat treatment (annealing), remove material stress, hardness is copper material HB42 ~ 55, aluminium HB15 ~ 25;
5, remove taper seat surface smut and oxide layer, guarantee that cambered surface is clean and tidy, non-oxidation, taper seat reaches the requirement of the 3rd article;
6, by the second weldment 2 clamping in the right fixture of welding machine, taper seat 21 exposes fixture mouth 4mm ~ 8mm clamping work pieces bar, first weldment 1 clamping is in the left fixture of welding machine, taper seat 11 exposes fixture mouth 3mm ~ 6mm clamping work pieces bar, starting friction welds, now the quick work of the second weldment 2 is entered, first weldment 1 starts high speed rotational operation, when the second weldment 2 weld contact surface 21 weld contact surface 11 to 0.5 ~ 1mm from the first weldment 1 time, now the slow continuous work of the second weldment is entered, two weldments start friction, first be coaxial center point cantact friction heating, enter to reach whole solder side friction along with the second weldment continues work, when solder side bulk temperature reaches 550 ~ 600 DEG C, the first weldment stops the rotation, fraction time control 1-5 second.Now the second quick top of weldment device, pressurize 1.5 seconds rear jigs unclamp, and complete welding.
Fig. 3 is preferred embodiment, as described below, select circle copper rod and circle aluminium bar is processed into the length of required size, through punching press, copper rod is molded the first weldment 1 matrix taper seat a size 65 °, aluminium bar strikes out the second weldment 2 convex taper seat b size 40 °, vacuum or conventional, electric-resistance furnace annealing, remove material stress, reach copper material hardness HB42 ~ 46, aluminium hardness HB15 ~ 20, through instrument lathe, the angle consistent with punch forming is processed into taper seat, by aluminium bar second weldment 2 clamping in the right fixture of welding machine, taper seat 21 exposes fixture mouth 4mm ~ 7mm clamping work pieces bar, first weldment 1 clamping is in the left fixture of welding machine, taper seat 11 exposes fixture mouth 3mm ~ 6mm clamping work pieces bar, starting friction welds, now the quick work of the second weldment 2 is entered, first weldment 1 starts high speed rotational operation, when the second weldment 2 weld contact surface 21 weld contact surface 11 to 0.5 ~ 1mm from the first weldment 1 time, now the slow continuous work of the second weldment is entered, two weldments start friction, first be coaxial center point cantact friction heating, enter and the hardness of copper rod and aluminium bar along with the second weldment continues work, molten poor, aluminium bar continuous deformation reaches whole solder side friction, when solder side bulk temperature reaches 550 ~ 600 DEG C, the first weldment stops the rotation, fraction time control 1-5 second.Now the second quick top of weldment device, pressurize 1.5 seconds rear jigs unclamp, complete welding, welding overlap is removed in welding transition place 3 external diameter Vehicle Processing, be machined to or large 0.5mm consistent with circle copper rod external diameter, be processed into copper-aluminium transition splicing fitting through operations such as forging and stamping, stretchings: as copper aluminium electric connectors such as device clamp, binding post, tube connector, T-shaped wire clamp, parallel groove clamp, wire clamp for connecting into subscribers.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiment of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to connotation of the present invention the apparent change of extending out or variation still belong to protection scope of the present invention.

Claims (9)

1. a welding processing, is characterized in that comprise the first weldment and the second weldment, its welding step is as follows with copper, aluminium for raw material:
(1) cut-bar and aluminium bar are processed into the length of required size;
(2) shaping-employing stamping machine or hydraulic press are by the first shaping matrix taper seat in weldment one end; By the second shaping convex taper seat in weldment one end; The tapering of this convex taper seat is less than the tapering of this matrix taper seat;
(3) heat treatment-employing vacuum drying oven annealing, removes material stress;
(4) dirt and the oxide layer on Vehicle Processing-remove respectively the first weldment matrix taper seat and the second weldment convex taper seat surface, guarantee that cambered surface is clean and tidy, non-oxidation;
(5) friction welding-by the second weldment clamping is in the movable clamp of welding machine, and convex taper seat entirety exposes fixture mouth 4 millimeters-8 millimeters clamping work pieces bars; By the first weldment clamping in the rolling clamp of welding machine, matrix taper seat entirety exposes fixture mouth 3 millimeters-6 millimeters clamping work pieces bars; Start welding, now the first weldment starts clamping and rotates, and the second weldment clamping is also moved to the first weldment, when the second weldment welding contact surface is from the first weldment welding contact surface to 0.5 millimeter-1 millimeter, the slow continuous of this second weldment moves, and two weldments start friction; After the first weldment and the second weldment start to contact, first be the friction of coaxial center point cantact, whole solder side friction is reached along with the second weldment continues to move, heat is produced by spin friction, workpiece temperature raises, when reaching hot melting temperature 550-600 DEG C, the first weldment stops the rotation, and friction warm-up time controls in 2-5 second; Now the second weldment device propelling pressure, maintenance pressure 1-5 unclamps fixture after second, completes welding.
2. processing method as claimed in claim 1, is characterized in that the tapering of this convex taper seat is 0.2-0.8; The tapering of this matrix taper seat is 1-1.5.
3. processing method as claimed in claim 2, is characterized in that the tapering of this convex taper seat is 0.8; The tapering of this matrix taper seat is 1.
4. processing method as claimed in claim 2, is characterized in that adopting concavo-convex tapering to welded blank, and solder side, or not a plane, adds welded section and amasss, make welded section not on a plane, add weld strength.
5. processing method as claimed in claim 4, is characterized in that, when carrying out deformation processing to the workpiece after welding, its intensity increases.
6. processing method according to claim 1, it is characterized in that this first weldment matrix taper seat circular cone adds angle is 65-75 °; It is 35-40 ° that this second weldment convex taper seat circular cone adds angle.
7. processing method according to claim 6, it is characterized in that this first weldment matrix taper seat circular cone adds angle is 65 °; It is 40 ° that this second weldment convex taper seat circular cone adds angle.
8. processing method according to claim 1, when when it is characterized in that this step (five) is welded, this solder side bulk temperature reaches 600 DEG C, this first weldment stops the rotation.
9. processing method according to claim 1, the warm-up time that rubs when it is characterized in that this step (five) is welded controls to be 2 seconds, pressurize 1.5 seconds.
CN201510257450.3A 2015-05-19 2015-05-19 Welding machining method Pending CN104842063A (en)

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105610035A (en) * 2016-01-28 2016-05-25 朱剑虹 Manufacturing method for copper-aluminum terminal
CN106346128A (en) * 2016-10-20 2017-01-25 西北工业大学 Aluminum copper dissimilar metal rotation friction welding method added with middle layer
CN109637918A (en) * 2018-12-18 2019-04-16 中国电子科技集团公司第十二研究所 A kind of delivery of energy window improving reliability
CN112103749A (en) * 2020-09-27 2020-12-18 吴林 Copper-aluminum connecting sheet and preparation method thereof
CN112317947A (en) * 2020-09-08 2021-02-05 兰州理工大学 Continuous driving friction welding method for aluminum bar and steel bar with outer conical end face
CN113751857A (en) * 2021-10-11 2021-12-07 中国兵器工业第五九研究所 Axial welding method of variable-taper conical friction welding structure

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CN1144731A (en) * 1996-08-02 1997-03-12 姚春 Copper-aluminium joint friction welding technique
CN1835165A (en) * 2006-03-03 2006-09-20 段沛林 Prepn. method copper-aluminum composite conductive pole
CN101369688A (en) * 2008-09-27 2009-02-18 宁波市鄞州中天阀门有限公司 Friction welding brass aluminum combination connector and its welding method
CN201486479U (en) * 2009-09-04 2010-05-26 上海海隆石油管材研究所 Oil well pipe end surface structure adopting friction welding connection
CN201645040U (en) * 2009-11-20 2010-11-24 国营红阳机械厂 Plugging pin for welding keyhole of aluminum alloy cylinder body after friction stir welding
CN102555210A (en) * 2010-10-27 2012-07-11 通用汽车环球科技运作有限责任公司 Friction-weld interface for an assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1144731A (en) * 1996-08-02 1997-03-12 姚春 Copper-aluminium joint friction welding technique
CN1835165A (en) * 2006-03-03 2006-09-20 段沛林 Prepn. method copper-aluminum composite conductive pole
CN101369688A (en) * 2008-09-27 2009-02-18 宁波市鄞州中天阀门有限公司 Friction welding brass aluminum combination connector and its welding method
CN201486479U (en) * 2009-09-04 2010-05-26 上海海隆石油管材研究所 Oil well pipe end surface structure adopting friction welding connection
CN201645040U (en) * 2009-11-20 2010-11-24 国营红阳机械厂 Plugging pin for welding keyhole of aluminum alloy cylinder body after friction stir welding
CN102555210A (en) * 2010-10-27 2012-07-11 通用汽车环球科技运作有限责任公司 Friction-weld interface for an assembly

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105610035A (en) * 2016-01-28 2016-05-25 朱剑虹 Manufacturing method for copper-aluminum terminal
CN106346128A (en) * 2016-10-20 2017-01-25 西北工业大学 Aluminum copper dissimilar metal rotation friction welding method added with middle layer
CN106346128B (en) * 2016-10-20 2019-01-01 西北工业大学 Add the aluminum bronze dissimilar metal spin friction welding method of middle layer
CN109637918A (en) * 2018-12-18 2019-04-16 中国电子科技集团公司第十二研究所 A kind of delivery of energy window improving reliability
CN112317947A (en) * 2020-09-08 2021-02-05 兰州理工大学 Continuous driving friction welding method for aluminum bar and steel bar with outer conical end face
CN112103749A (en) * 2020-09-27 2020-12-18 吴林 Copper-aluminum connecting sheet and preparation method thereof
CN112103749B (en) * 2020-09-27 2023-09-29 吴林 Copper-aluminum connecting sheet and preparation method thereof
CN113751857A (en) * 2021-10-11 2021-12-07 中国兵器工业第五九研究所 Axial welding method of variable-taper conical friction welding structure
CN113751857B (en) * 2021-10-11 2022-04-12 中国兵器工业第五九研究所 Axial welding method of variable-taper conical friction welding structure

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