Chongqing Plastic Parts
Release Date:
2022-10-09
Plastic laser welding machines are not only suitable for welding automotive tail lights but also for a wide range of other automotive components, including interior instrument panels, plastic parts for fuel systems, plastic components for EPB electronic parking systems, PMS tire-pressure monitoring systems, rear-view radar systems, surround-view imaging systems, and ECU electronic control units.
Among the various laser welding methods for plastic materials, contour welding is a widely used laser-based plastic welding technique for surface joining of automotive components and serves as the standard process for plastic laser welding. During the welding operation, the laser cutting head is mounted on a mobile positioning platform or an intelligent robot; the head focuses the laser beam and moves along the weld seam to perform the weld.
In practical applications, contour welding is known to deliver high-quality injection-molded parts, particularly in complex weld-seam applications such as oil–gas separation. During plastic laser welding, contour welding can achieve a certain melt penetration depth; however, this depth is relatively shallow and difficult to control, which means that the deformation of the injection-molded part must be kept to a minimum.
During laser welding, unlike vibration-friction welding, there is no excessive flash caused by the substantial collapse of weld beads, which would otherwise lead to unsightly weld seams. This is precisely why laser welding is widely adopted for interior and exterior trim components in automobiles. As the share of plastic parts in automotive manufacturing continues to grow, plastic laser welding systems—thanks to their unique advantages—are gaining increasing acceptance among automakers, ensuring that laser welding technology will play an increasingly prominent role in the automotive industry.
Regardless of the welding method employed, great emphasis must be placed on the design of welding materials for new products. A key challenge in plastic laser welding lies in the design process: when injection-molded parts are to be laser-welded, the product design must strictly adhere to the design guidelines specific to the selected laser-based plastic welding process. By ensuring that both the welding materials and the final product meet the technical standards for laser plastic welding, the subsequent process development will be significantly simplified.
With the rapid development of the plastics industry, plastic products have gradually replaced metal composites, gaining widespread adoption in sectors such as automotive, marine, packaging, and electronics. Thanks to its unique advantages, laser welding has steadily emerged as a key method for joining plastic components. In the automotive manufacturing industry, laser welding delivers outstanding performance in a wide range of plastic parts, including air filters, headlights, gas–liquid separators, high-pressure fuel pumps, instrument-panel housings, electronic door actuators, transmissions, and sensors. In new vehicle models developed overseas, the proportion of laser-welded plastic components has already exceeded 95%, while traditional ultrasonic welding is increasingly being superseded on multiple fronts. Companies in the automotive components sector that adopt laser welding more rapidly will be better positioned to take the lead in driving industrial upgrading.
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Address: No. 7, Meijia Road, Nan’an District, Chongqing
Email: fenghai@cqfenghai.com
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Company Phone：023-61966749
Company email：fenghai@cqfenghai.com
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