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How to prevent deformation and relieve stress after flash butt welding
Wuxi Xinxing Welding Equipment Factory mainly produces: spot welding machines, butt welding machines, flash butt welding machines, medium frequency spot welding machines, energy storage spot welding machines, nut spot welding machines, polymer diffusion welding machines and other resistance welding equipment! QQ online consultationSitemapContact us
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How to prevent deformation and relieve stress after flash butt welding-Xinxing Welding
Release time:2022.01.23
Summary of information:
Whether it is resistance spot welding, butt welding, arc welding, laser welding, etc., the workpiece is heated and cooled unevenly during the welding process, resulting in different degrees of thermal expansion and cooling contraction of the welded piece, resulting in stress and deformation. So how to prevent and eliminate it?
in useFlash butt welding machineor in resistance butt welding machines to prevent and eliminate butt jointsFor deformation and stress problems, the following measures are generally taken:
1.Measures to prevent and eliminate docking deformation:
1) The structural design should avoid dense intersection of welds, and the cross-section and length of the welds should be as small as possible. It is also an effective measure to reduce deformation as well as to prevent stress;
2) When assembling before welding, use the anti-deformation method
3) Rigid fixation method, but it will produce large residual stress
4) Adopt reasonable welding specifications;
5) Choose a reasonable welding sequence, symmetrical welding, and segmented welding.
6) Use mechanical or flame correction methods to reduce deformation.
2.Measures to prevent and eliminate docking stress:
1) The structural design should avoid dense intersection of welds, and the cross-section and length of welds should be as small as possible.may be small;
2) Adopt a reasonable welding sequence to allow the weld to shrink more freely.
3) When the weld is still at a relatively high temperature, hammering or rolling the weld causes the metal to stretch.Reduce residual stress;
4) Use small line energy welding and multi-layer welding,Reduce residual stress;
5) Preheating before welding can reduce the temperature difference of the workpiece and reduce residual stress;
6) Perform stress relief annealing after welding to eliminate welding residual stress.
Wuxi Xinxing Welding Equipment Factory was founded in 1993 and is a resistance welding machine manufacturer with 29 years of innovation and development. The products it produces and sells include: spot welding machines, iron sheet spot welding machines, copper sheet spot welding machines, aluminum foil spot welding machines, stainless steel spot welding machines, aluminum plate spot welding machines,Screen spot welding machine, microelectronic spot welding machine, butt welding machine, copper rod butt welding machine, iron wire butt welding machine, steel bar butt welding machine, aluminum rod butt welding machine, titanium wire butt welding machine, alloy wire butt welding machine, steel ring butt welding machine, wheel hub butt welding machine, copper and aluminum butt welding machine, copper and aluminum tube butt welding machine, etc., whether semi-automatic or automatic, everything is available, excellent quality, favorable price, many cases, welcome to consult andPurchase!
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How to prevent deformation and relieve stress after flash butt welding-Xinxing Welding
Summary of information:
Whether it is resistance spot welding, butt welding, arc welding, laser welding, etc., the workpiece is heated and cooled unevenly during the welding process, resulting in different degrees of thermal expansion and cooling contraction of the welded piece, resulting in stress and deformation. So how to prevent and eliminate it?
in useFlash butt welding machineor in resistance butt welding machines to prevent and eliminate butt jointsFor deformation and stress problems, the following measures are generally taken:
1.Measures to prevent and eliminate docking deformation:
1) The structural design should avoid dense intersection of welds, and the cross-section and length of the welds should be as small as possible. It is also an effective measure to reduce deformation as well as to prevent stress;
2) When assembling before welding, use the anti-deformation method
3) Rigid fixation method, but it will produce large residual stress
4) Adopt reasonable welding specifications;
5) Choose a reasonable welding sequence, symmetrical welding, and segmented welding.
6) Use mechanical or flame correction methods to reduce deformation.
2.Measures to prevent and eliminate docking stress:
1) The structural design should avoid dense intersection of welds, and the cross-section and length of welds should be as small as possible.may be small;
2) Adopt a reasonable welding sequence to allow the weld to shrink more freely.
3) When the weld is still at a relatively high temperature, hammering or rolling the weld causes the metal to stretch.Reduce residual stress;
4) Use small line energy welding and multi-layer welding,Reduce residual stress;
5) Preheating before welding can reduce the temperature difference of the workpiece and reduce residual stress;
6) Perform stress relief annealing after welding to eliminate welding residual stress.
Wuxi Xinxing Welding Equipment Factory was founded in 1993 and is a resistance welding machine manufacturer with 29 years of innovation and development. The products it produces and sells include: spot welding machines, iron sheet spot welding machines, copper sheet spot welding machines, aluminum foil spot welding machines, stainless steel spot welding machines, aluminum plate spot welding machines,Screen spot welding machine, microelectronic spot welding machine, butt welding machine, copper rod butt welding machine, iron wire butt welding machine, steel bar butt welding machine, aluminum rod butt welding machine, titanium wire butt welding machine, alloy wire butt welding machine, steel ring butt welding machine, wheel hub butt welding machine, copper and aluminum butt welding machine, copper and aluminum tube butt welding machine, etc., whether semi-automatic or automatic, everything is available, excellent quality, favorable price, many cases, welcome to consult andPurchase!
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