The increasing adoption of laser welding is due in no small part to the many technical advantages it offers. With regard to the economic advantages, prejudices still exist on account of higher investment costs for suitable materials. Any comparison with other processes must consider all aspects.
Small automotive sensor housings are the bread-and-butter application for laser plastic welding to date. Hermetically sealed, durable and clean joints prove laser welding is the right solution for the auto electronics industry.
Car headlights and tail lamps have traditionally been glued or hot plate welded. However, with greater emphasis on break and head lamps, these methods are becoming outdated. Adhesive bonding, although capable of providing a clean look, leaves weak seals that eventually degrade and result in condensation. And, although, hot plate welding can produce a longer lasting bond, the lack of precision has car lamp designers in need of a solution with some aesthetic capabilities.
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