GMW GMW16772 PDF

Material Description. This standard defines the requirements for hot rolled or cold rolled laser welded blanks used by GM in the manufacture of stamped sheet steel parts. It applies only to the as-supplied condition of tailored blanks. This specification does not cover laser welded blanks for hot forming.

Symbols. Not applicable.

Typical Applications. Typical applications for these blanks include, but are not limited to door inner panels, motor compartment rails, body side inners. 

Remarks. Blanks supplied under this standard shall be made by laser butt welding two or more coated or uncoated sheet steel blanks used for subsequent cold forming into a pre-determined configuration.

For the requirements of the steel sheets the relevant specifications apply. In this specification materials are covered with a tensile strength of 800 MPa maximum.

For coated blanks all requirements shall be fulfilled for zinc coatings according to GMW8 and GMW11, respectively.