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GMW16755
New product
GMW16755 1st Edition, July 1, 2014 Repair Welding of Aluminum Engine Blocks and Bedplates
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Description / Abstract:
Introduction
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 document describes welding procedures, process details, and acceptance criteria for cosmetic repair of sand cast aluminum engine block castings and low pressure die cast or squeeze cast aluminum bedplates.
Procedure shall be used to weld repair only un-machined and un-heat treated castings.
This procedure is not intended for repair of large casting defects
Repair of oxide films, misruns, and cracks are not permitted.
Cylinder block regions that may be considered for weld repair include block front and rear faces, crankcase (skirt) walls, bosses (excluding head, bearing cap/bedplate, and engine mounting), and starter flange. Defects eligible for weld repair shall be agreed to between the responsible GM Design Responsible Engineer (DRE) and the supplier and shall be included in the process control plan and/or quality document. Any deviations from this specification must be approved by the responsible GM Powertrain Product Engineering Department.
Applicability. Specific to agree upon weld repair locations between GM DRE and supplier for sand cast aluminum cylinder blocks and low pressure die cast or squeeze cast aluminum bedplates.
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 document describes welding procedures, process details, and acceptance criteria for cosmetic repair of sand cast aluminum engine block castings and low pressure die cast or squeeze cast aluminum bedplates.
Procedure shall be used to weld repair only un-machined and un-heat treated castings.
This procedure is not intended for repair of large casting defects
Repair of oxide films, misruns, and cracks are not permitted.
Cylinder block regions that may be considered for weld repair include block front and rear faces, crankcase (skirt) walls, bosses (excluding head, bearing cap/bedplate, and engine mounting), and starter flange. Defects eligible for weld repair shall be agreed to between the responsible GM Design Responsible Engineer (DRE) and the supplier and shall be included in the process control plan and/or quality document. Any deviations from this specification must be approved by the responsible GM Powertrain Product Engineering Department.
Applicability. Specific to agree upon weld repair locations between GM DRE and supplier for sand cast aluminum cylinder blocks and low pressure die cast or squeeze cast aluminum bedplates.