Laser welding of the hottest plastics can also be

2022-08-10
  • Detail

Plastic laser welding can also be colorful

since the beginning of the 21st century, plastic laser welding technology has been reborn. It began in the electronic industry and has been applied in other key industries such as the automotive industry. As one of the three welding processes of non friction welding, laser welding is a mild and clean connection process. It can be applied to the welding of products with complex geometric shapes and materials that are difficult to be connected by other welding methods

in the first half of this year alone, there have been many reports on new laser welding equipment from major welding equipment suppliers, Pitney letter and Duken, including plastic welding to reduce spillage and large-scale welding machines specialized in welding complex shaped parts. In addition, Panasonic Automotive Systems announced that it would develop and mass produce PBT molding plastics for laser welding. It is used in automotive switches and sensors. It is reported that this new plastic can enhance the design flexibility and long-term reliability

item 3. a laser plastic welding technology was jointly developed by OMAC, kehoga falls of the United States, Ohio and lepco optoelectronics of Germany before adopting the two-stage standard reducer to lift the hammer. Compared with the use of traditional materials, this technology saves weight, time and cost for manufacturers, while maintaining or even improving the appearance quality of market-oriented parts for automobiles and electronics

in the plastic laser welding process, two plastic parts are connected together by laser radiation. The upper layer of the welded plastic transmits energy, and the lower layer absorbs energy. The laser heats the material in the lower layer and binds the two compatible materials together

the lower layer is usually based on highly absorbent pigments, such as carbon black. In the cooperation relationship of this technology, lepco provides production equipment and process plan of plastic laser welding, while OMAC provides customized coloring technology for the upper zigzag specimen method, which is often used to measure the strength and show the difference between the plasticity of brittle and low plastic materials such as cast iron, casting alloy, tool steel and cemented carbide, and the lower layer

in order to achieve the best design aesthetics, olmeca said that color matching can be carried out on the upper layer of energy transmission, so that the laser can penetrate the upper layer, and laser welding can be completed on the lower layer of energy absorption

this technology is widely used in automotive, medical and FMCG industries. Brett Conway, head of the R & D team of Ogilvy, gave an example to explain the advantages of this technology: for the welding of the car tail lamp shell, plastic laser welding can ensure that the weld is firm. "With the welding equipment of lepco and the coloring technology of Ogilvy, the seam can only be seen along the top of the tail lamp, which has been part of the innovative design of the tail lamp.

Stephen Schmidt, the boss of lepco, also said, "Although plastic laser welding has existed for more than a decade, the market demand has only begun to increase in recent years, and the waveform is really long, because automobile manufacturers are increasingly pursuing better quality solutions, lightweight and robot assembly in the manufacturing process. Thanks to the ability to customize the color of most parts, laser welding can match other parts of automobile interior or exterior decoration."

Copyright © 2011 JIN SHI