Laser Brazing Roof

This is often the case in areas such as tailgates roof joints and c columns.

Laser brazing roof.

This technique has become possible with the first fiber coupled processing lasers the lamp pumped nd yag lasers. Sometimes reducing cost can also improve aesthetics and lead to better cars. Compared to laser welding or spot welding laser brazing improves the aesthetics of the joint so dramatically that the ditch molding can be omitted. Brazing s main advantages compared to welding are the smooth surfaces that are produced and the ability to avoid melting the zinc coating which avoids corrosion or further treatment that would be necessary otherwise.

Fiber laser brazing technology adds a level of precision where conventional brazing methods fall short. Laser direct and fiber coupled diode lasers power u 1 000 w to 3 000 w beam quality 100 150 mm mrad spot dimensions 1 to 2 5 mm 1 5 x 1 5 or 2 x 6 mm2. Laser brazing combines high speed joining capabilities with high rigidity overcoming common drawbacks of laser welding. Laser brazing can be used to bond this coating without damaging the material.

Implementing laser brazing for the ditch joint attaching the roof and the side panel of the car. Thanks to these advantages laser brazing is employed for visible joints in areas such as tailgates roof joints and c columns. The diode laser can achieve large spot sizes as well as line foci very easily which is essential for applications like brazing. Laser brazing brazing is a method of joining two or more metal parts together.

Besides the requirement for a high degree of mechanical stability these seams must also have minimal heat affected zone. With the elimination of heat to the joined parts throughput is increased. Compared to laser beam or spot welding brazing welding improves the aesthetics of the joint so clearly that a roof seam no longer has to be covered by a plastic strip. In terms of design laser brazing eliminates parting lines not only between the roof panel and the side panel but also on vehicle exteriors.

Filler wire 1 to 1 6 mm hotwire by current of 50 to 150 a material cusi3 material steel sheets galvanized steel with high requirements on seam quality. The laser quickly melts the filler material with even less heat distributed to the base metal parts. The primary difference between welding and brazing is that welding involves the melting of the base material whereas brazing involves melting only a filler metal which is flowed into the joint to create a bond between the base parts. Laser brazing also doesn t require any flux further reducing material costs.