This standard specifies the classification of castings, technical requirements and inspection rules for surface quality, internal quality of castings, and defect correction of castings. This standard is applicable to the acceptance of aluminum alloy sand molds, metal molds, investment molds, plaster molds, shell molds and other castings produced in batches for aviation products.
HB 963-1990 history
2005HB 963-2005 Specification for aluminium alloy castings