The laser welding method of two kinds of metal materials or powder sintering is used to realize the bipolar plate of PEMFC battery

摘要

The invention relates to a method for welding two metal materials ((, 2, 3) or powder sintering ((s)) ((P, 3).It includes the following steps: A / setting a complete plate (...),Transparent laser beam emission wavelength (s)A contact area ((4) between the laser (L) and at least one welding metal material or at least one powder sintering area (s);B / a laser beam is emitted through a transparent plate for sintering materials in the contact zone () or the powder sintering zone ().