In the machine tool industry, the development of welding technology has been developed with the application of welding structure of machine tool products. Metal Cutting Machine tools, forging machinery and casting machinery products are the main fields of welding technology application in the machine tool industry. Welding technology has also gradually developed into the leading technology in the machine tool industry, which is mainly reflected in the following aspects:
(1) Some key enterprises have established welding workshops or metal structure factories with a certain scale, and established a complete welding management system, and absorbed the welding process standards of imported products.
(2) Improve the welding process, from a single processing technology to a set of emerging comprehensive engineering technology from raw material pretreatment, cutting blanking, forming, welding, post-weld inspection and post-weld treatment.
(3) CNC precision cutting and computer programming nesting technology has been applied.
(4) Promote the application of advanced and efficient new technologies such as CO2 gas and argon-rich gas shielded or submerged arc welding.
(5) X-ray flaw detection and ultrasonic non-destructive flaw detection are commonly used to stabilize the intrinsic quality of the weld.
(6) The new vibration aging process has been promoted to achieve the purpose of reducing and homogenizing the residual stress of the welded structure, reducing the deformation of the welded parts and stabilizing the accuracy.
At present, the main welding techniques applied in the machine tool industry have the following aspects: application of steel plate pretreatment technology; application of numerical control cutting technology; application of high efficiency welding technology such as gas shielded welding. Among them, high-efficiency welding technology such as gas shielded welding has been widely used in machine tool beds, gears, eccentric bodies, rocker shafts, cylinder blocks, pipe flanges and casings that are not processed after welding, and has become a machine tool industry. One of the main processes of welding.
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