CN101637854A - Reverse deformation processing method for aluminum alloy bodywork welding - Google Patents
Reverse deformation processing method for aluminum alloy bodywork welding Download PDFInfo
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- CN101637854A CN101637854A CN200810135031A CN200810135031A CN101637854A CN 101637854 A CN101637854 A CN 101637854A CN 200810135031 A CN200810135031 A CN 200810135031A CN 200810135031 A CN200810135031 A CN 200810135031A CN 101637854 A CN101637854 A CN 101637854A
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Abstract
The invention relates to a reverse deformation processing method for aluminum alloy bodywork welding, which comprises the following steps: firstly, preparing a support according to a component of an aluminum alloy bodywork to be welded, wherein the support is a cushion block, a cushion plate, a columnar body or a tubular body, and the cross section of the support is round or square; then, using atleast one support to support on the component of the aluminum alloy bodywork to be welded to cause reverse deformation of the aluminum alloy bodywork to be welded towards a welding surface; and finally, carrying out welding work on the component to be welded. The method well controls the deformation of the component of the aluminum alloy bodywork with large length and large volume during welding,not only improves the quality of welded parts, but also saves a process of correcting the welded parts, has simple and practical operation, greatly improves the production efficiency and reduces thelabor intensity of operating personnel; in addition, the method does not need to additionally manufacture tooling, thereby greatly improving the manufacturing cost.
Description
Technical field
The present invention relates to a kind of aluminum alloy bodywork welding processing of rail vehicle, the particularly a kind of aluminum alloy bodywork welding anti-distortion processing method that can control welding deformation belongs to vehicle body of railway vehicle manufacturing technology field.
Background technology
In the production process of rail vehicle, the car body of especially present high-speed track vehicle, mostly adopting aluminium alloy is main material, wherein need be carry out weld job on big and the aluminum alloy materials that length is long at area, but for aluminum alloy materials, when welding processing, hot cracking tendency is big, and the welding stress deformation problem is very outstanding.Connected structure for elongated aluminium alloy extrusions, welding deformation mainly is horizontal, the vertically contraction distortion of socket both sides, connected structure for two-sided aluminium alloy extrusions, welding deformation mainly be laterally, the contraction distortion on vertically, need to reserve process allowance, for single face aluminium alloy extrusions Welding Structure, welding deformation mainly is flexural deformation, usually behind weld job, need to carry out orthopedic, stress-removal processing, process-cycle and cost are all increased considerably.
For solving the problem of welding deformation, available technology adopting following several method, as number of patent application is that 85101016 Chinese patent " prevents the method for the welding deformation of plate in the dull and stereotyped Welding Structure ", this slab construction is made of thin plate and framework, the parts such as side plate that are used for rail truck, said method is the monoblock thin plate to be placed in the heating cabinet preheating make it produce thermal expansion, and is when thin plate expands that itself and framework is welded together.The method of this control welding deformation need long time preheating, and condition of work is comparatively abominable, complicated operation, and production efficiency is low, the production cost height.
Also have to adopt with the weldering friction extrusion method, it as number of patent application 200610150852.4 Chinese patent " a kind of device of controlling welding stress deformation depending on welding friction extrusion ", spin friction pole pair welding point zones of different by three given shapes applies the friction and Extrusion effect, force this part metal to flow along the direction generation plastic deformation of needs, friction lever the proal while all butt welded seam pressurize.Adopt this method can make the maximum vertically deflection deformation amount and the cross-direction shrinkage of test specimen obviously descend, but equipment is bigger, range of application limits to some extent.
In present welding deformation controlling method, also have and adopt anti-distortion processing method, it as number of patent application 200710061232.8 Chinese patent " a kind of welding anti-distortion processing method of ironware ", it be with two ends have the support plate, cylinder of the breach identical or square column with ironware shape to be welded at interval support ironware to be welded, then ironware to be welded two ends are penetrated mould or direct and both mold ends reinforcing, offer the perforate that matches with the vertical sectional shape of ironware to be welded and size on the mould, anchor fluke is welded in fixing back on ironware to be welded.But this kind processing method, the support member and the mould that need processing separately and ironware shape to be welded and size to match, the different weldments for the treatment of need mate different support members and mould, and production cost is higher, and is of limited application.
Summary of the invention
Main purpose of the present invention is to address the above problem and is not enough, provides a kind of and can effectively control welding flexural deformation and simple to operate, production efficiency height, the anti-distortion processing method of the aluminum alloy bodywork welding that production cost is low.
For achieving the above object, the anti-distortion processing method of described aluminum alloy bodywork welding:
It may further comprise the steps:
(1) prepare support member according to the parts of aluminum alloy bodywork to be welded, described support member is cushion block, backing plate, column or tubular body, and its cross section is circular or square;
(2) with at least one supports support on described aluminum alloy bodywork parts to be welded, make of the reverse side distortion of described aluminum alloy bodywork parts to be welded to solder side;
(3) on described parts to be welded, carry out weld job.
Further improvement of the present invention is, when said method is used for the welding of aluminum alloy bodywork draw beam, in the above-mentioned steps (1), opening part at described draw beam uses support member, employed support member is column or tubular body, its cross section is circular or square, and the length of described support member is greater than the width of described draw beam; In above-mentioned steps (2), with the opening part of at least one supports support at described draw beam to be welded, make each distortion laterally of dual-side of described draw beam to be welded, described support member is arranged in the described draw beam to be welded every 300-400mm is equidistant.
Another improvement of the present invention is, when being used for the welding of aluminum alloy bodywork single-sided welding section bar or sheet material, in the above-mentioned steps (1), described support member pad is in the back side of described section bar and sheet material, described support member is cushion block or backing plate, and the cross section of described support member is square; In above-mentioned steps (2), described support member is along the bead direction setting of described to-be-welded pieces, and one or more support members are set in the both sides of every weld seam, the two ends of described to-be-welded pieces are compressed downwards with the card orchid, make described to-be-welded pieces to the reverse side direction bending of solder side, the thickness of described support member is the anti-deformation of the to-be-welded pieces of described support member placement.
Content to sum up, the present invention has adopted the processing method of reversible deformation, and it is long to have controlled length well, the distortion that bulky aluminum alloy bodywork parts are produced when welding, not only the quality of weldment improves, and saved the operation that the welding back is revised welding assembly, method of operating is simple and practical, has increased substantially production efficiency, reduced operating personnel's labour intensity, in addition, also do not need to make in addition frock, manufacturing cost also reduces significantly.
Description of drawings
Fig. 1 draw beam Welding Structure of the present invention schematic diagram;
Fig. 2 side wall Welding Structure of the present invention schematic diagram.
As depicted in figs. 1 and 2, support member 1, draw beam 2, side wall 3, weld seam 4, processing tool 5.
The specific embodiment
Embodiment one, as shown in Figure 1, with specific embodiment the process of the present invention when the draw beam 2 of welding aluminum alloy car body is described.
In aluminum alloy bodywork processing,, in draw beam 2, need to weld many stiffening plates for increasing the intensity of draw beam 2, therefore, the welding capacity that draw beam is formed is bigger, so the distortion after the welding is also just bigger, the anti-distortion processing method during draw beam 2 welding comprises the steps:
(1) prepares support member 1 according to draw beam to be welded 2, support member 1 is column or tubular body, be the stay pipe structure shown in Fig. 1, the cross section of support member 1 can be circular or square, the length of support member 1 should just can make each distortion laterally of dual-side of draw beam 2 greater than the width of draw beam 2.
Generally can obtain draw beam 2 when welding by a large amount of tests, the deflection that its dual-side produced, thus, can calculate the anti-deformation of draw beam 2 dual-sides, just the size of before welding to-be-welded pieces being out of shape in the opposite direction reaches anti-deformation, it will reach the requirement that makes to-be-welded pieces reach glacing flatness after welding, need not revise adjustment after welding.
(2) be supported on the opening part of draw beam to be welded 2 with at least one support member 1, make each distortion laterally of dual-side of draw beam to be welded 2, the length of support member 1 should equal the width and the anti-deformation sum of draw beam 2.As shown in fig. 1, the width of draw beam 2 is 178mm, and the anti-deformation of every side is 1mm, so the length that can draw support member 1 thus then is 180mm.
The length of general draw beam 2 is all longer, use a support member 1 to be not enough to reach the requirement of control welding deformation, so a plurality of support members 1 will be set in draw beam 2, support member 1 is arranged in the draw beam to be welded 2 every 300-400mm is equidistant, this be because, to carry out many weld jobs in the draw beam 2, too close if support member 1 is arranged, will influence the weld job of draw beam 2 inside.
(3) on draw beam to be welded 2, carry out weld job.
Embodiment two, as shown in Figure 2, with specific embodiment the process of the present invention when the single-sided welding section bar of welding aluminum alloy car body or the sheet material are described, present embodiment is an example with welding side wall 3.
In aluminum alloy bodywork processing, side wall 3, roof, underframe etc. all are to be welded by various large-scale aluminium alloy extrusions or sheet material assembly unit, and weld seam is long, and especially when carrying out single-sided welding, welding deformation is very big.As side wall of aluminum alloy bodywork 3 is to be formed by 7 large-scale aluminium alloy extrusions weldings, will produce 6 very long weld seams at the solder side of side wall 3 like this, and the anti-distortion processing method during side wall 3 welding comprises the steps:
(1) prepare support member 1 according to side wall of aluminum alloy bodywork to be welded 3, support member 1 is a cushion block, and cushion block directly is welded on the processing tool 5 of side wall 3.
(2) support member 1 is along the elongated setting of weld seam 4 directions of side wall to be welded 3, and one or more support members 1 are set in the both sides of every weld seam 4, as shown in Figure 2, the both sides of every weld seam 4 are provided with a support member 1, but support member 1 can not be set directly at the below of weld seam 4.
Because side wall 3 has 6 weld seams 4, wherein 3,4,5 blocks of section bars have the requirement of glacing flatness after welding, can meet the demands so generally lean on middle 2-4 bar weld seam 4 places that support member 1 is set therein.
Can obtain the deflection that side wall 3 is produced equally when carrying out single-sided welding by a large amount of tests, thus, can calculate the anti-deformation at side wall 3 each weld seam 4 place, so with the Thickness Design of support member 1 is the anti-deformation of the side wall to be welded 3 of support member 1 placement, so just can guarantee that side wall 3 satisfies the requirement of glacing flatness after welding is finished, not need the correction and the adjustment of postorder.
(3) 7 section bar assembly units of side wall 3 to be welded are got up, be placed on the processing tool 5 that welds support member 1, its two ends compress downwards with card blue (not indicating among the figure), make the reverse side direction bending of side wall 3 to solder side, and make side wall 3 when welding its reverse side recline the assurance welding quality with the surface of support member 1.
(4) on described side wall to be welded 3, carry out weld job.
As mentioned above, given in conjunction with the accompanying drawings and embodiments scheme content can derive the similar techniques scheme.In every case be the content that does not break away from technical solution of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical solution of the present invention according to technical spirit of the present invention.
Claims (5)
1, a kind of anti-distortion processing method of aluminum alloy bodywork welding is characterized in that it may further comprise the steps:
(1) prepare support member according to the parts of aluminum alloy bodywork to be welded, described support member is cushion block, backing plate, column or tubular body, and its cross section is circular or square;
(2) with at least one supports support on described aluminum alloy bodywork parts to be welded, make of the reverse side distortion of described aluminum alloy bodywork parts to be welded to solder side;
(3) on described parts to be welded, carry out weld job.
2, the anti-distortion processing method of aluminum alloy bodywork welding according to claim 1, it is characterized in that: when being used for the welding of aluminum alloy bodywork draw beam, in above-mentioned steps (1), opening part at draw beam uses support member, described support member is column or tubular body, its cross section is circular or square, and the length of described support member is greater than the width of described draw beam;
In above-mentioned steps (2),, make each distortion laterally of dual-side of described draw beam to be welded with the opening part of at least one supports support at described draw beam to be welded.
3, the anti-distortion processing method of aluminum alloy bodywork according to claim 2 welding is characterized in that: described support member is arranged in the described draw beam to be welded every 300-400mm is equidistant.
4, the anti-distortion processing method of aluminum alloy bodywork welding according to claim 1, it is characterized in that: when being used for the welding of aluminum alloy bodywork single-sided welding section bar or sheet material, in above-mentioned steps (1), described support member pad is in the back side of section bar and sheet material, described support member is cushion block or backing plate, and the cross section of described support member is square;
In above-mentioned steps (2), described support member is along the bead direction setting of described to-be-welded pieces, and one or more support members are set in the both sides of every weld seam, and the two ends of described to-be-welded pieces are compressed downwards with the card orchid, make of the reverse side direction bending of described to-be-welded pieces to solder side.
5, the anti-distortion processing method of aluminum alloy bodywork welding according to claim 4, it is characterized in that: the thickness of described support member is the anti-deformation of the to-be-welded pieces of described support member placement.
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| CN200810135031A CN101637854A (en) | 2008-07-28 | 2008-07-28 | Reverse deformation processing method for aluminum alloy bodywork welding |
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Cited By (17)
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| CN102029475A (en) * | 2010-12-28 | 2011-04-27 | 唐山轨道客车有限责任公司 | Welding deformation control method for aluminum alloy plate |
| CN102357751A (en) * | 2011-09-06 | 2012-02-22 | 龙工（上海）挖掘机制造有限公司 | Reversible deformation tailor-welding method for crawler beam of excavator |
| CN102489915A (en) * | 2011-11-25 | 2012-06-13 | 长春轨道客车股份有限公司 | Manufacturing method of anti-deformation arc-shaped positioning copper strips for stainless steel car roof skeleton |
| CN103008957A (en) * | 2012-12-27 | 2013-04-03 | 中国重汽集团柳州运力专用汽车有限公司 | Compressing device for carriage side plate of self-dumper |
| CN103624478A (en) * | 2013-12-12 | 2014-03-12 | 辽宁忠旺集团有限公司 | Aluminum alloy vehicle body floor flame correction method |
| CN103639610A (en) * | 2013-12-12 | 2014-03-19 | 辽宁忠旺集团有限公司 | Welding technology for aluminum alloy apron board of high-speed bullet train equipment cabin |
| CN104438462A (en) * | 2014-11-05 | 2015-03-25 | 九冶建设有限公司 | Reversible deformation performing method of flange plate welding angular deformation |
| CN104551425A (en) * | 2014-11-24 | 2015-04-29 | 长春轨道客车股份有限公司 | Adjustment and repair-free assembly welding method for three-dimensional bent aluminum alloy beam column and three-dimensional curved open section |
| CN104625343A (en) * | 2014-12-26 | 2015-05-20 | 辽宁忠旺集团有限公司 | Drafting and buffering welding technology for aluminum alloy subway body |
| CN105945460A (en) * | 2016-05-16 | 2016-09-21 | 哈尔滨电机厂有限责任公司 | Split rotating wheel assembly welding reverse deformation device and method |
| CN108034803A (en) * | 2017-12-06 | 2018-05-15 | 山东能源重装集团大族再制造有限公司 | A kind of method for controlling sheet deformation |
| CN109048099A (en) * | 2018-07-10 | 2018-12-21 | 武汉船用机械有限责任公司 | A kind of manufacturing method of hollow legn beam |
| CN109263668A (en) * | 2018-08-10 | 2019-01-25 | 中车青岛四方机车车辆股份有限公司 | Body frame cross bearer and side girders weld industry device and its control method |
| CN110434500A (en) * | 2019-07-29 | 2019-11-12 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle pilot beam weld industry device and method |
| CN110561014A (en) * | 2019-10-08 | 2019-12-13 | 中车长春轨道客车股份有限公司 | Positioning tool for milling and welding of traction beam of railway passenger car |
| CN112355501A (en) * | 2020-10-23 | 2021-02-12 | 广东港重绿建科技有限公司 | Deformation-preventing single-side assembling method for steel member |
| CN112975179A (en) * | 2021-02-25 | 2021-06-18 | 中车长春轨道客车股份有限公司 | Motor train unit section bar cavity welding deformation control device and control method |
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2008
- 2008-07-28 CN CN200810135031A patent/CN101637854A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102029475A (en) * | 2010-12-28 | 2011-04-27 | 唐山轨道客车有限责任公司 | Welding deformation control method for aluminum alloy plate |
| CN102357751A (en) * | 2011-09-06 | 2012-02-22 | 龙工（上海）挖掘机制造有限公司 | Reversible deformation tailor-welding method for crawler beam of excavator |
| CN102489915A (en) * | 2011-11-25 | 2012-06-13 | 长春轨道客车股份有限公司 | Manufacturing method of anti-deformation arc-shaped positioning copper strips for stainless steel car roof skeleton |
| CN103008957A (en) * | 2012-12-27 | 2013-04-03 | 中国重汽集团柳州运力专用汽车有限公司 | Compressing device for carriage side plate of self-dumper |
| CN103624478A (en) * | 2013-12-12 | 2014-03-12 | 辽宁忠旺集团有限公司 | Aluminum alloy vehicle body floor flame correction method |
| CN103639610A (en) * | 2013-12-12 | 2014-03-19 | 辽宁忠旺集团有限公司 | Welding technology for aluminum alloy apron board of high-speed bullet train equipment cabin |
| CN104438462A (en) * | 2014-11-05 | 2015-03-25 | 九冶建设有限公司 | Reversible deformation performing method of flange plate welding angular deformation |
| CN104438462B (en) * | 2014-11-05 | 2016-05-11 | 九冶建设有限公司 | A kind of reversible deformation method for prefabricating of flange plate Welding Angular Deformation |
| CN104551425A (en) * | 2014-11-24 | 2015-04-29 | 长春轨道客车股份有限公司 | Adjustment and repair-free assembly welding method for three-dimensional bent aluminum alloy beam column and three-dimensional curved open section |
| CN104625343A (en) * | 2014-12-26 | 2015-05-20 | 辽宁忠旺集团有限公司 | Drafting and buffering welding technology for aluminum alloy subway body |
| CN105945460A (en) * | 2016-05-16 | 2016-09-21 | 哈尔滨电机厂有限责任公司 | Split rotating wheel assembly welding reverse deformation device and method |
| CN108034803A (en) * | 2017-12-06 | 2018-05-15 | 山东能源重装集团大族再制造有限公司 | A kind of method for controlling sheet deformation |
| CN109048099A (en) * | 2018-07-10 | 2018-12-21 | 武汉船用机械有限责任公司 | A kind of manufacturing method of hollow legn beam |
| CN109263668A (en) * | 2018-08-10 | 2019-01-25 | 中车青岛四方机车车辆股份有限公司 | Body frame cross bearer and side girders weld industry device and its control method |
| CN109263668B (en) * | 2018-08-10 | 2019-11-22 | 中车青岛四方机车车辆股份有限公司 | Body frame cross bearer and side girders weld industry device and its control method |
| CN110434500A (en) * | 2019-07-29 | 2019-11-12 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle pilot beam weld industry device and method |
| CN110561014A (en) * | 2019-10-08 | 2019-12-13 | 中车长春轨道客车股份有限公司 | Positioning tool for milling and welding of traction beam of railway passenger car |
| CN112355501A (en) * | 2020-10-23 | 2021-02-12 | 广东港重绿建科技有限公司 | Deformation-preventing single-side assembling method for steel member |
| CN112355501B (en) * | 2020-10-23 | 2021-12-07 | 广东港重绿建科技有限公司 | Deformation-preventing single-side assembling method for steel member |
| CN112975179A (en) * | 2021-02-25 | 2021-06-18 | 中车长春轨道客车股份有限公司 | Motor train unit section bar cavity welding deformation control device and control method |
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