US Patent:
20200164820, May 28, 2020
Inventors:
- Grand Haven MI, US
Joseph R. Matecki - Allendale MI, US
Shawn R. Jasman - Coopersville MI, US
International Classification:
B60R 19/18
B60R 19/02
B60R 19/03
B21C 37/08
Abstract:
A galvanized reinforcement beam is continuously formed by uncoiling a roll of galvanized sheet stock in a generally horizontal plane. Protrusions are formed at an upper surface of the sheet stock, which is then roll formed to form a tubular shape with the protrusions abutting a surface of the sheet stock to form venting gaps. The sheet stock is laser welded at the protrusions to continuously form a weld joint, where zinc oxide gas generated from the welding is permitted to escape an interior of the tubular shape through the venting gaps.