CN106583956A - Welding process of automobile galvanized steel sheet - Google Patents
Welding process of automobile galvanized steel sheet Download PDFInfo
- Publication number
- CN106583956A CN106583956A CN201611184401.2A CN201611184401A CN106583956A CN 106583956 A CN106583956 A CN 106583956A CN 201611184401 A CN201611184401 A CN 201611184401A CN 106583956 A CN106583956 A CN 106583956A
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- Prior art keywords
- welding
- electrode
- automobile
- spot
- weldment
- 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.)
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Links
- 238000003466 welding Methods 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 26
- 229910001335 Galvanized steel Inorganic materials 0.000 title claims abstract description 13
- 239000008397 galvanized steel Substances 0.000 title claims abstract description 13
- 239000007772 electrode material Substances 0.000 claims abstract description 8
- 238000007689 inspection Methods 0.000 claims abstract description 8
- QZLJNVMRJXHARQ-UHFFFAOYSA-N [Zr].[Cr].[Cu] Chemical compound [Zr].[Cr].[Cu] QZLJNVMRJXHARQ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 7
- 229910000679 solder Inorganic materials 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 4
- 238000007778 shielded metal arc welding Methods 0.000 claims description 4
- 208000037656 Respiratory Sounds Diseases 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract 1
- 238000009472 formulation Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
The invention relates to the technical field of welding, in particular to a welding process of an automobile galvanized steel sheet. The welding process comprises the following steps: 1, preparation before welding; 2, locating of a weldment; 3, selection of an electrode material; 4, selection of welding equipment; 5, formulation of attention points of the welding process; 6, determination of parameters of a spot welding process; and 7, inspection after welding: the following treatment steps can be carried out according to an actual requirement: 1, carrying out metallographic inspection on a welded joint and a heat-affected zone; 2, carrying out X ray flaw detection on a weld; and 3, carrying out hardness test on the welded joint. During welding of the automobile galvanized steel sheet, generally, relatively hard chromium zirconium copper is selected as the electrode material, and processed into a shape like an inclined cone for facilitating repairing of wear; a robot is generally adopted for spot welding, and intermediate-frequency welding and pulse electrifying modes are preferred; and the welding current, the welding voltage, the time, the shape of the electrode material and the surface treatment of a workpiece are main factors which affect welding.
Description
Technical field
The present invention relates to welding technology field, more particularly to a kind of welding procedure of automobile galvanized steel plain sheet.
Background technology
Application of the galvanized steel plain sheet in car is the main material of motor vehicle bodywork component widely, carries car
The responsibilities such as load-bearing, safety.The welding procedure of research automobile galvanized steel plain sheet, for improve welding quality, efficiency and peace all with
Very great meaning.Additionally, galvanized steel plain sheet is to car body corrosion protection important role.
Nearly ten years, Domestic Automotive Industry quickly grows, thing followed car body corrosion protection problem
Also it is outstanding day by day.Show according to relevant investigation, general domestic new car operation occurs corrosion pit for 1 year, and 3 ~ 4 years i.e.
There is corrosion to penetrate, be that this national year maintenance cost reaches billions of yuans.
The content of the invention
For defect present in prior art or deficiency, the technical problem to be solved is：A kind of vapour is provided
The welding procedure of car galvanized steel plain sheet, solves the problems, such as involved by background technology.
To achieve these goals, the technical scheme that the present invention takes is to provide a kind of Welder of automobile galvanized steel plain sheet
Skill, comprises the following steps：
Step 1, welding preparation, need to process welding surface, it is ensured that the surface of weldment is without greasy dirt, iron rust and moisture before weldering
Secondly Deng electrode tip need to be checked, it is ensured that electrode tip surface cleaning, without serious abrasion；
Step 2, weldment positioning, by part to be welded removing surface it is clean after, fix；In welding every time, step up and position and be necessary
It is firm and solid, for high intensity, the weldment of big thickness, typically clamped using big cylinder.The longer welding of operation, typically need to add anti-
Misloading is put, it is to avoid leakage operation；
Step 3, electrode material are selected, and electrode and coating can react, so in pinpoint welding procedure, the effect of electrode is weighed very much
Will, through repeatedly point postwelding, electrode can gradually wear out, and end face can wear and tear, and change is big, and surface can also produce corrosion phenomenon, so
In the welding of the zinc-plated sheet material of automobile, typically using harder chromium-zirconium-copper electrode, increase the wearability of electrode, and be sized generally to
Oblique cone shape；The selection of step 4, welding equipment, it is general to adopt robot welding in the welding of the zinc-plated sheet material of automobile more,
Local is using SMAW auxiliary welding；
The Attention Points that step 5, welding procedure are worked out, the weldment general thickness of the zinc-plated sheet material of automobile is 2 mm or so, one
As be all to adopt spot welding, work out welding procedure before, need to consider welding positioning, shunting, between welding deformation and workpiece and welding gun
Solderable degree；In terms of the weldability of solder joint, to consider the operability of each solder joint, i.e. spot-welding gun and frock clamp it
Between distance, angle, the thickness of part to be welded and the material of spot-welding gun operation etc. should be consistent；
The determination of step 6, spot welding parameter；
After step 7, inspection after welding welding, following process can be carried out according to actual needs：One is Welded Joints and heat affected area
Metallographic examination is carried out, weld seam is determined without incomplete fusion, without being mingled with, pore, crackle and the defect such as lack of penetration；Two be should be to weld seam
Carry out X radiographic inspections；Three is that Welded Joints carry out hardness test.
The invention has the beneficial effects as follows：In automobile galvanized steel plain sheet welding is carried out, electrode material typically selects harder chromium
Zirconium copper, is sized generally to oblique cone shape, is easy to the reparation after wearing and tearing；Robot Spot Welding is typically adopted, preferentially from medium frequency welding
Connect, pulse electrifying mode, the surface treatment of welding current, voltage, time, electrode material shape and workpiece is to affect welding
Principal element.
Specific embodiment
With reference to explanation and specific embodiment, the present invention is further described.
The present invention provides a kind of welding procedure of automobile galvanized steel plain sheet, comprises the following steps：
1st, welding preparation weldering before need to process welding surface, it is ensured that the surface of weldment without greasy dirt, iron rust and moisture etc.,
Secondly electrode tip need to be checked, it is ensured that electrode tip surface cleaning, without serious abrasion.
2nd, weldment positioning by part to be welded removing surface it is clean after, fix.In welding every time, stepping up and position must
Must be firm and solid, for high intensity, the weldment of big thickness, typically clamped using big cylinder.The longer welding of operation, typically
Error prevention device need to be added, it is to avoid leakage operation.
3rd, electrode material selects to be analyzed from more than, and electrode and coating can react, so in pinpoint welding procedure
In, the effect of electrode is extremely important, and through repeatedly point postwelding, electrode can gradually wear out, and end face can wear and tear change greatly, surface
Corrosion phenomenon can be also produced, so in the welding of the zinc-plated sheet material of automobile, typically using harder chromium-zirconium-copper electrode, increasing
The wearability of electrode, and it is sized generally to oblique cone shape.4th, the selection of welding equipment is in the welding of the zinc-plated sheet material of automobile,
It is general to adopt robot welding more, locally welded using SMAW auxiliary.The steady quality of robot welding, solder joint
Favorable repeatability, registration will not be affected by welder's state.Secondly, using robot welding, shunting can be avoided from causing
Welding deformation and unstability, local repair welding needs to adopt SMAW.
5th, the weldment general thickness of the zinc-plated sheet material of Attention Points automobile that welding procedure is worked out is 2 mm or so, one
As be all to adopt spot welding, work out welding procedure before, need to consider welding positioning, shunting, between welding deformation and workpiece and welding gun
Solderable degree.In terms of the weldability of solder joint, to consider the operability of each solder joint, i.e. spot-welding gun and frock clamp it
Between distance, angle, the thickness of part to be welded and the material of spot-welding gun operation etc. should be consistent.
6th, spot welding parameter
7th, after inspection after welding welding, following process can be carried out according to actual needs：One is that Welded Joints and heat affected area are carried out
Metallographic examination, determines weld seam without incomplete fusion, without being mingled with, pore, crackle and the defect such as lack of penetration；Two is weld seam to be carried out
X radiographic inspections；Three is that Welded Joints carry out hardness test.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
The present invention be embodied as be confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of without departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (1)
1. a kind of welding procedure of automobile galvanized steel plain sheet, it is characterised in that：Comprise the following steps：
Step 1, welding preparation, need to process welding surface, it is ensured that the surface of weldment is without greasy dirt, iron rust and moisture before weldering
Secondly Deng electrode tip need to be checked, it is ensured that electrode tip surface cleaning, without serious abrasion；
Step 2, weldment positioning, by part to be welded removing surface it is clean after, fix；In welding every time, step up and position and be necessary
It is firm and solid, for high intensity, the weldment of big thickness, typically clamped using big cylinder；The longer welding of operation, need to typically add mistake proofing
Device, it is to avoid leakage operation；
Step 3, electrode material are selected, and electrode and coating can react, so in pinpoint welding procedure, the effect of electrode is weighed very much
Will, through repeatedly point postwelding, electrode can gradually wear out, and end face can wear and tear, and change is big, and surface can also produce corrosion phenomenon, so
In the welding of the zinc-plated sheet material of automobile, typically using harder chromium-zirconium-copper electrode, increase the wearability of electrode, and be sized generally to
Oblique cone shape；The selection of step 4, welding equipment, it is general to adopt robot welding in the welding of the zinc-plated sheet material of automobile more,
Local is using SMAW auxiliary welding；
The Attention Points that step 5, welding procedure are worked out, the weldment general thickness of the zinc-plated sheet material of automobile is 2 mm or so, one
As be all to adopt spot welding, work out welding procedure before, need to consider welding positioning, shunting, between welding deformation and workpiece and welding gun
Solderable degree；In terms of the weldability of solder joint, to consider the operability of each solder joint, i.e. spot-welding gun and frock clamp it
Between distance, angle, the thickness of part to be welded and the material of spot-welding gun operation etc. should be consistent；
The determination of step 6, spot welding parameter；
After step 7, inspection after welding welding, following process can be carried out according to actual needs：One is Welded Joints and heat affected area
Metallographic examination is carried out, weld seam is determined without incomplete fusion, without being mingled with, pore, crackle and the defect such as lack of penetration；Two be should be to weld seam
Carry out X radiographic inspections；Three is that Welded Joints carry out hardness test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611184401.2A CN106583956A (en) | 2016-12-20 | 2016-12-20 | Welding process of automobile galvanized steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611184401.2A CN106583956A (en) | 2016-12-20 | 2016-12-20 | Welding process of automobile galvanized steel sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106583956A true CN106583956A (en) | 2017-04-26 |
Family
ID=58601944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611184401.2A Pending CN106583956A (en) | 2016-12-20 | 2016-12-20 | Welding process of automobile galvanized steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106583956A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108857010A (en) * | 2017-05-10 | 2018-11-23 | 武汉捷众汽车零部件有限公司 | A kind of Progress in Automobile Galvanized Steel Sheets point quality control method |
| CN109822247A (en) * | 2019-02-22 | 2019-05-31 | 株洲联诚集团控股股份有限公司 | Electrical cubicle cover board spot-welding technology |
| CN110142492A (en) * | 2019-06-06 | 2019-08-20 | 武汉钢铁有限公司 | Without splashing Progress in Automobile Galvanized Steel Sheets resistance spot welding method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273185A (en) * | 2013-05-08 | 2013-09-04 | 凌云工业股份有限公司 | Online dezincing and finishing device for galvanized sheet roll spot welding electrode wheel |
| JP2014136244A (en) * | 2013-01-17 | 2014-07-28 | Kit Co Ltd | Spot welding method |
| JP2016041441A (en) * | 2014-08-19 | 2016-03-31 | Ｊｆｅスチール株式会社 | Resistance spot welding method |
-
2016
- 2016-12-20 CN CN201611184401.2A patent/CN106583956A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014136244A (en) * | 2013-01-17 | 2014-07-28 | Kit Co Ltd | Spot welding method |
| CN103273185A (en) * | 2013-05-08 | 2013-09-04 | 凌云工业股份有限公司 | Online dezincing and finishing device for galvanized sheet roll spot welding electrode wheel |
| JP2016041441A (en) * | 2014-08-19 | 2016-03-31 | Ｊｆｅスチール株式会社 | Resistance spot welding method |
Non-Patent Citations (3)
| Title |
|---|
| 帅歌旺等: "镀锌钢板电阻点焊电极的失效分析", 《金属铸锻焊技术》 * |
| 沈言锦: "汽车镀锌钢板的焊接工艺", 《焊接技术》 * |
| 王威等: "镀锌汽车板点焊电极的优化技术", 《电焊机》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108857010A (en) * | 2017-05-10 | 2018-11-23 | 武汉捷众汽车零部件有限公司 | A kind of Progress in Automobile Galvanized Steel Sheets point quality control method |
| CN109822247A (en) * | 2019-02-22 | 2019-05-31 | 株洲联诚集团控股股份有限公司 | Electrical cubicle cover board spot-welding technology |
| CN110142492A (en) * | 2019-06-06 | 2019-08-20 | 武汉钢铁有限公司 | Without splashing Progress in Automobile Galvanized Steel Sheets resistance spot welding method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170426 |
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| RJ01 | Rejection of invention patent application after publication |