How to Solve Plate Welding Deformation
Release time:
2023-01-26
【Summary Description】 Plate welding How to Solve Plate Welding Deformation The welding deformation of the steel plate is difficult to repair, and prevention is the main method, that is, the use of reasonable welding methods to prevent deformation in the welding process. Use symmetrical welding as much as possible. For work with symmetrical welds, it is best to weld symmetrically by pairs of welders. In this way, the deformation caused by each weld can be partially offset. 2. Sub-section back welding method This method is suitable for the welding of medium plate or thin steel plate. Its advantage is that the intermediate heat dissipation is fast and the temperature difference between the two ends of the weld is reduced. The temperature of the weld heat affected zone will not increase sharply to reduce or avoid thermal expansion deformation. 3. Alternating welding method This welding method is basically the same as the jump welding method, except that each section of the welding distance is elongated, which is especially suitable for thin plates and long welds. 4. The symmetrical method in the middle is suitable for weldments with short welds. In order to reduce deformation, the welding is finished at one time from the center to both ends. 5. Rigid fixed method Rigid fixed method to reduce deformation is very effective, and welding without excessive consideration of the welding sequence. The disadvantage is that some large parts are not easy to fix, and after the removal of the fixed after welding, the weldment still has a little deformation and a large residual stress. This method is suitable for welding thin-walled materials with thickness less than 6mm and good toughness. 6. Heat dissipation method Heat dissipation method is also called forced cooling method, that is, the heat at the welding place is quickly dissipated, so that the metal heating surface near the weld is greatly reduced, and the purpose of reducing welding deformation is achieved. 7. Hammering weld method Hammering weld method, that is, knocking the weld with a round head hammer, can reduce welding deformation and stress. How to weld thin plate welding? 1, the use of suitable welding machine, such as ZX7-and other small inverter welding machine. 2. Use a suitable electrode, such as a mild steel electrode with a diameter of 2.5mm. 3. Adjust the welding machine to the left and right welding current. 4. Do a good job of anti-deformation of thin iron plate. 5, try to choose flat welding. 6, each welding, stay the appropriate cooling time of the molten pool, and then weld the second time. 7. When welding, master the welding angle.
plate welding
How to Solve Plate Welding Deformation
The welding deformation of the steel plate is difficult to repair, and prevention is the main method, that is, the use of reasonable welding methods to prevent deformation in the welding process.
Use symmetrical welding as much as possible. For work with symmetrical welds, it is best to weld symmetrically by pairs of welders. In this way, the deformation caused by each weld can be partially offset.
2. Sub-section back welding method This method is suitable for the welding of medium plate or thin steel plate. Its advantage is that the intermediate heat dissipation is fast and the temperature difference between the two ends of the weld is reduced. The temperature of the weld heat affected zone will not increase sharply to reduce or avoid thermal expansion deformation.
3. Alternating welding method This welding method is basically the same as the jump welding method, except that each section of the welding distance is elongated, which is especially suitable for thin plates and long welds.
4. The symmetrical method in the middle is suitable for weldments with short welds. In order to reduce deformation, the welding is finished at one time from the center to both ends.
5. Rigid fixed method Rigid fixed method to reduce deformation is very effective, and welding without excessive consideration of the welding sequence. The disadvantage is that some large parts are not easy to fix, and after the removal of the fixed after welding, the weldment still has a little deformation and a large residual stress. This method is suitable for welding thin-walled materials with thickness less than 6mm and good toughness.
6. Heat dissipation method Heat dissipation method is also called forced cooling method, that is, the heat at the welding place is quickly dissipated, so that the metal heating surface near the weld is greatly reduced, and the purpose of reducing welding deformation is achieved.
7. Hammering weld method Hammering weld method, that is, knocking the weld with a round head hammer, can reduce welding deformation and stress.
How to weld thin plate welding?
1, the use of suitable welding machine, such as ZX7-and other small inverter welding machine.
2. Use a suitable electrode, such as a mild steel electrode with a diameter of 2.5mm.
3. Adjust the welding machine to the left and right welding current.
4. Do a good job of anti-deformation of thin iron plate.
5, try to choose flat welding.
6, each welding, stay the appropriate cooling time of the molten pool, and then weld the second time.
7. When welding, master the welding angle.
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