Plastic laser welding: flat contour welding

Planar contour welding is used for welding plane synchronous welding is the most widely used laser plastic welding in the surface welding of automotive parts, and is the standard process for plastic laser welding. In the process of quasi-synchronous welding, the laser head welding rib can focus the light spot, and the melting depth is relatively deep. Therefore, the deformation of the injection molded part can compensate for the laser head hanging on the motion platform or the mass of the injection molded part. The requirements for the robot to move sequentially along the weld are slightly lower to complete the welding.

For the application of fuel system plastic laser welding, no matter which of the above welding methods is used, it is necessary to attach great importance to the design of welded reinforcement for welded products. Designing welded reinforcement and products that meet the requirements of laser plastic welding technology can make the future process development process much simpler.

In practical applications, contour welding has high quality requirements for injection molded workpieces, especially oil-gas separators. In the plastic laser welding process, contour welding can achieve a certain penetration depth of the welding line, but the penetration depth is very small and uncontrollable, which requires that the deformation of the injection molded part should not be too large.