The manufacturing process of joining inner and outer panels is called hemming.
Hemming in automotive manufacturing is a cold process of joining an inner and outer panel by folding the flanges of the outer panel onto the inner panel, permanently clamping the inner panel in place. This process is used in the manufacture of doors, hoods, and decklids and can be accomplished using a traditional press or with a robotically controlled roller.
Traditional robotic door hemmer requires four anvils …
Source URL: Comau Introduces New Hemming Process for Lightweight and Electric Vehicle Manufacturing
Source Website: Advance Engineering – Engineering.com