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FABRICATED PRODUCTS: |
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CAST PRODUCTS: |
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DESIGN, DIE PRODUCTION AND MACHINING: |
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CASTING QUALITY CONTROL: Only virgin Comalco alloy is used, and all components are produced in AC603, (US A357) This high tensile strength alloy also is commonly used in aviation components such as helicopter rotor hubs. Each material batch is delivered with a “batch report” and a “Certificate of Analysis”. This analysis is compared to the correct material spec and if the material conforms it is “logged in to stock”. With each casting run, die inserts are date coded, which also identify consecutive days within that casting run. “Run sheets” record any variance in shot procedures and alterations to die coatings, etc. during the run. Before heat treatment, the heat treat process sheet indicates:
Heat Treatment process analysis is recorded against the batch and run number, and “test pieces” from the casting melt are also heat treated with the “casting batch”. Mechanical analysis is then performed on these test pieces. This procedure ensures that from the date code on any casting, we can determine: (A) The material details; both batch # and chemical analysis. (B) The date the casting was produced. (C) Melt and die temperatures for the casting run. (D) The heat treatment process details. (E) The physical properties of the material used in the casting batch in terms of
This process ensures 100% traceability of any casting. |
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