The blog about laser plastic welding
The blog about laser plastic welding
The development of laser welding of plastics represents a fascinating chapter in the history of materials processing. Although the patent application filed by Mobil Oil Corporation in 1964 can be regarded as an example of early considerations in this field, older patents prove that the use of radiation for joining…
In today’s manufacturing environment, precise joining techniques are essential, especially when it comes to processing plastics. Two-step laser welding has been developed as an effective solution that overcomes the limitations of conventional single-step processes and sets new standards for processing absorbent plastics. Challenges of single-step laser welding Traditionally, single-step laser…
One of the great advantages of laser welding of plastic is that the weld seams are very homogeneous and therefore leak-tight. The process is ideally suited for achieving IP67 or higher protection levels in a process-safe manner. Even in the prototype phase, however, the question arises of how to pragmatically…
Probably one of the most influential patents on laser welding of plastics is a patent EP 0 751 865 first filed by Marquardt GmbH in 1994. It protects the welding of two workpiece parts using the transmission method, which have the same color in the visible light spectrum. Technically, the…
Today, it is widely believed that laser welding of plastics was invented around the turn of the millennium. However, old patents and patent applications in particular show that the technology was considered and also used much earlier. For example, Mobil Oil Corporation applied for patent US 3,560,261 in 1964 and…
