What is BIW?
BIW-Body in White In the Automotive Industry BIW (Body in White) is the common terminology used to mention the car sheet metal welded structure (body shell). In today's situation, automotive BIW is made of steel (various steel grade material -DP, DD, HDP etc.) as well as made of aluminium alloy (e.g. AUDI A8) Sub-assemblies like Under body, Body side Left Hand Side/ Right Hand Side, Front End, Roof etc. gets welded together by various metal joining process e.g. resistance s