Welding method and system
A welding method and technology of welded parts, applied in the direction of welding equipment, welding equipment, auxiliary welding equipment, etc., can solve the problems of large welding deformation of the parts to be welded, reduce temperature difference, reduce welding deformation, and improve welding processing accuracy Effect
Active Publication Date: 2016-08-31
CRRC TANGSHAN CO LTD
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Problems solved by technology
[0005] The invention provides a welding method and system, which are used to solve the problem that the existing welding technology cannot accurately realize the control of the welding deformation of the workpiece to be welded, resulting in a large amount of welding deformation of the workpiece to be welded
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[0049] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the present invention. Invented some embodiments, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0050] The welding method and system provided by the present invention can be applied to all kinds of parts to be welded, aiming to solve the problem that the existing welding methods cannot effectively control the welding deformation of the parts to be welded. Welding parts are welded first, and after each part to be welded is welded, the parts to b...
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The invention provides a welding method and system. The welding method comprises the steps that the constraint quantity of each to-be-welded workpiece in a to-be-welded assembly is obtained according to the structural characteristics of the to-be-welded assembly, wherein the constraint quantity is the constraint quantity of deformation of each to-be-welded workpiece; the welding sequence of the to-be-welded workpieces is determined according to the constraint quantities of the to-be-welded workpieces; and welding is conducted on the to-be-welded workpieces according to the welding sequence of the to-be-welded workpieces, and each welded workpiece is cooled after being welded. According to the welding method and system, the to-be-welded workpiece with the large constraint quantity is welded first, fast cooling is conducted immediately on the welded workpiece, and the temperature difference of a weld seam and the peripheral region is reduced, so that the weld deformation of the to-be-welded assembly is reduced, and the welding machining precision of the to-be-welded assembly is further improved.
Description
Technical field [0001] The invention relates to welding technology, in particular to a welding method and system. Background technique [0002] The large coefficient of thermal expansion of aluminum alloy materials makes the aluminum alloy parts prone to welding deformation after welding. For aluminum alloy welded parts, it is a common technical requirement for aluminum alloy welded parts to adjust the welding deformation to make the size of aluminum alloy welded parts reach the standard size. Therefore, how to control the welding deformation of the welded parts of aluminum alloy parts has become a key means to control the dimensions. [0003] At present, the methods of controlling welding deformation of welded parts of aluminum alloy parts mainly include pre-welding anti-deformation method, tool pressing method, post-weld adjustment method, etc. The post-weld adjustment method includes post-weld hot adjustment method and post-weld cold adjustment method. Amending the law. Howev...
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IPC IPC(8): B23K31/00B23K37/00
CPCB23K31/003B23K37/003B23K2103/10
Inventor 胡文浩王广英尹方杨冠华
Owner CRRC TANGSHAN CO LTD