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Description / Abstract:
Note: Nothing in this standard supercedes
applicable laws and regulations.
Note: In the event of conflict between the
English and domestic language, the English language shall take
precedence.
Purpose. This standard provides the acceptance
criteria and repair procedures for continuous roof joint laser
fillet welds for which GM is responsible for establishing or
approving product design.
Applicability. This standard is applicable to
autogenous laser welding process (LBW). The criteria established in
this standard become mandatory when referenced on a weld design
document. Deviations from any weld criteria provided in this
standard must be identified on a weld design document.
Usage. Welded structures are considered
satisfactory when they carry the intended service loads for a
required period. Service loads on weldments in a vehicle are varied
in both type and magnitude and cannot be addressed by this
standard. Therefore, while weld quality criteria of this standard
are consistent with service loading requirements, they have been
established specifically for use in process and product monitoring.
Any attempted application of this document to other uses, such as
post-crash weld quality assessment, may lead to an erroneous result
or conclusion. Discrepant welds by retaining a portion of their
engineering properties may still contribute to the integrity of the
assembly.
Clarification. For clarification of this standard or editorial
comments, email the GM Weld Council at
weld.council@gm.com.
Proposed changes to this standard must be presented to the
Global Weld Council. To suggest a change to this standard,
reference the "Procedure for Weld Standard Changes" on the Global
Weld Council's webpage.