Polymethyl methacrylate and stainless steel laser welding system and welding method

Abstract

The invention discloses a polymethyl methacrylate and stainless steel laser welding system. The polymethyl methacrylate and stainless steel laser welding system comprises a fiber laser, a laser head and an industrial computer, the laser head is electrically connected with the fiber laser and is capable of emitting a laser beam, and the industrial computer is electrically connected with the fiber laser and controls the fiber laser to conduct laser welding. The laser welding system further comprises a clamping device used for clamping a polymethyl methacrylate workpiece and a stainless steel workpiece. The clamping device comprises a lower pressing plate and upper pressing plates which are separated from each other and impact the two ends of each workpiece respectively, and the upper pressing plate can be used for adjusting the impacting degree for the workpieces through a screw rotation structure. The invention further puts forward a welding method using the polymethyl methacrylate and stainless steel laser welding system, so that the polymethyl methacrylate workpiece and the stainless steel workpiece can be tightly clamped so as to be effectively welded. Compared with the prior art, the polymethyl methacrylate and stainless steel laser welding system and the welding method have the advantages that the production yield is high, weld strength is high, welding deformation is small, precise welding is realized, and the like.

Description

technical field [0001] The invention relates to the technical field of laser welding, in particular to a laser welding system and welding method for organic glass and stainless steel. Background technique [0002] With the continuous emergence of new materials and new structures, the comprehensive application of metal materials and non-metallic composite materials has been greatly developed, and stainless steel and plexiglass have unique physical properties such as light weight and high strength, so they are widely used in medical devices, It is widely used in the technical fields of packaging industry, auto parts and electronic devices. [0003] However, there are certain technical difficulties in the welding between stainless steel and plexiglass, because the melting points of the two materials are quite different, which makes the compatibility between the two materials low, and it is difficult to form a metal in the fusion zone when the two are welded. Mixing compounds w...

AI Technical Summary

Problems solved by technology

[0003] However, there are certain technical difficulties in the welding between stainless steel and plexiglass, because the melting points of the two materials are quite different, which makes the compatibility between the two materials low, and it is difficult to form a metal in the fusion zone when the two are welded. Compounds are mixed with non-metals, thereby reducing the welding strength, and because of the oxide film on the surface of stainless steel, it will hinder the bonding between the two materials

[0004] At present, bonding, mechanical riveting, brazing or ultrasonic welding are mainly used for the connection between stainless steel and plexiglass, but the structures manufactured by the above methods have disadvantages such as poor shape, unsatisfactory joint strength and low production efficiency.

Images