In the plastic materials in the field of medical devices are widely used today, the new plastics production and processing technology is endless, laser welding as one of them, by the industry's widespread concern. This article introduces the principle of plastic laser welding, process and application in the medical device industry. Plastic welding principle In the thermoplastic welding process, two plastic parts to be welded with clamping fixtures clamped together, one of the plastic parts can make the laser penetrate, while the other plastic parts can absorb the laser energy. The laser beam passes through the upper layer of light-transmitting material to the welding plane and is then absorbed by the lower layer. The absorption of the laser energy raises the temperature of the lower material, melting both the upper and lower layers of plastic, and finally solidifying them into a strong weld.
Welding schematic
The advantage of plastic laser welding is that it is a non-contact welding method, the laser energy only acts on a very small welding area, greatly reducing the workpiece thermal stress and vibration damage to the workpiece. Plastic laser welding methods mainly include: contour welding, synchronous welding, quasi-synchronous welding, radial welding and Globol welding.
For more information about engineering/service/procurement bid writing and production, to improve the winning rate, you can click the bottom of the official website customer service free consultation:/#/bid