Which plastics can be laser welded? Check out the plastic laser welding quality table

Anyone who has been exposed to plastic welding technology knows that the welding effects between different plastic materials are different. Commonly used processes include hot pressing, ultrasonic welding, laser welding, etc. So today we will update the Plastic laser welding process and how it works between different materials.

As shown below

In the above picture, red represents good welding effect, yellow represents good welding effect, blue represents poor welding effect, gray represents unweldable materials, and the white part has not been tested yet.

During the testing process, we tested a large number of samples and recorded the weldability between plastics to draw conclusions.

Then some customers will ask, why did the material I sent you before clearly show that it can be welded, but why did it not weld successfully? There are two answers to this question. 1. Let's take PC and PC as an example. Although they are both PC materials, they are modified plastics. The modified materials have a great impact on the welding process. Usually, fireproof, moisture-proof, hardness-enhancing or flexibility-enhancing materials are added to make the material meet the requirements of the workpiece, but this will lead to unsatisfactory welding results or even impossible welding. 2. Color/transparency. Laser welding requires materials to have a certain degree of light transmittance. Light-blocking materials cannot be welded, such as two materials that are completely opaque.

Related content:What is the depth of influence of color on plastic laser welding?