How Does It Affect Downstream Processes?
Because deep forming can be done in one hit, multipart assemblies can be formed as a single complex component. “In the past, to beef up the safety performance of side-impact beams, the solution has been to add parts—to add more metal into the body side. In many cases, with hot stamping we’re able to eliminate the need for additional parts,” Kotagiri said in the article. “Let’s say you have a body side B pillar inner, B pillar reinforcement, and a B pillar outer. If I use hot-formed components in that assembly, now I’m able to eliminate the reinforcements. In roof crush case studies where conventional stampings and reinforcements have been substituted with hot-stamped components, the mass is reduced by roughly 30 to 40 percent,” he said. Scale. After forming, the part may need special treatment to remove scale and improve rust resistance. Uncoated boron steel requires a nitrogen-rich (or other inert gas) atmosphere in the furnace; otherwise, once it is exposed to the atmosphere, it deve