Shaping also refers to scraping ash:

After the automobile body is corrected by sheet metal, there are still some defects that cannot be compensated by sheet metal work. Even if new parts are replaced, there will be imperfections. In order to be more perfect, we must use sculpture techniques to make up for the defects.

After the car is damaged due to deformation and other reasons, its flatness, wheel angle, lines and other parts need to be scraped and polished. With this formula, it is clear that scraping = restoring body skin = die product = die processing program, and any body skin of an automobile is stamped by a die.

We repair the body skin just like repairing the mold, so our scraping molding process should be consistent with the mold processing, which is impossible for ordinary painters.