Common metal welding principle is actually liquefied solvent is then cooled together. Car body is formed by welding four steel plates vertically and horizontally, Common are spot welded, to a plate connected together by a weld obtained.
is laser welding using a laser temperature, the molecular structure of the two steel plates disrupted, molecules to rearrange such that two molecules of the steel sheet as one solution. Physically it is so, the two laser welding a steel plate into a steel sheet, it is compared with ordinary welding Thus, with a higher intensity.