LANXESS: New laser transmission welding machine for plastics development

Modern cars are increasingly equipped with advanced driver assistance systems, a trend that is strongly accelerating the demand for plastic housings to accommodate electronic parts and components such as sensors, antennas, and control units. Laser transmission welding is becoming increasingly popular as a joining method employed during the production of these housings. Therefore, LANXESS is upgrading its technical center in Dormagen, Germany, to include a laser welding machine featuring an extensive range of equipment and state-of-the-art technology from PolyMerge GmbH, a provider of innovative welding machines for plastics based in Geretsried, Germany. “With this highly versatile equipment, we want to develop new laser welding materials and make them series-ready more quickly. We will also be able to emulate our customers’ production environment and so help them more quickly and with tighter focus,” says Frank Krause, an expert in plastics joining processes in the High Performance Materials (HPM) business unit at LANXESS.

A cost-efficient production process preserving electronic components

激光传输焊接涉及将激光束穿过激光 - 透明组件。然后，梁被下面的第二个（通常是碳黑色组件）吸收，而梁的能量会导致第二个成分表面的局部熔化。该过程中产生的热量也使第一个组件的表面塑造出来。两个联接合作伙伴的融化在压力下混合，形成材料焊接。该程序通常用于焊接盖上的焊接。与传统的连接技术（例如振动和超声焊接）相比，激光传输焊接的优势在于，外壳中的电子组件几乎遭受零热或机械应力。克劳斯（Krause）：“它还使具有复杂几何形状的非常小的组件能够产生成本效益，并且物理上的影响最小，因此达到了电气和电子功能微型化的增长趋势。”新机器使用YTTERBIUM纤维激光器，波长为1,080纳米和300瓦的功率。

HiAnt – support for every aspect of plastics welding

LANXESS已经开发了测试样品，可用于在小型和大型电子外壳的激光传输焊接过程中重现典型条件，例如，定义了半透明组件的焊缝几何形状和壁厚。“这些测试标本使我们能够帮助客户解决多种问题和问题。但是，我们还为他们提供了一系列其他与激光焊接相关的服务，例如基于仿真的Warpage优化，旨在使加入过程更安全，更稳定。” Krause说。

In addition, the plastics technical center in Dormagen is equipped with a range of ultrasonic, infrared and vibration welding equipment. All services are bundled under the HiAnt brand and encompass the entire component development process from design and layout through to finished part testing – e.g., media aging and various mechanical tests – performed in compliance with customer standards.

For more information on the HiAnt services provided by LANXESS, visitwww.hiant.www.kiwlau.com. More information about the polyamide and polybutylene terephthalate compounds developed by LANXESS for laser transmission welding and about the procedure itself can be found in the brochure entitled “Durethan LT and Pocan LT – Engineering plastics for laser transmission welding”. It can be downloaded fromwww.hiant.www.kiwlau.com(choose “Library” – “Brochures”, registration required).

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