1967-02-01

Metallurgical Factors Related to Machining Aluminum Castings 670465

Three metallurgical factors have a major influence on the machinability of aluminum castings: chemical composition, heat treatment, and foreign inclusions. Othermet-allurgical factors that may also affect machinability are generally related to one of these three items. In general, aluminum alloys have good machining characteristics, although tests indicate that they cover a range. Some of the differences that do exist are discussed and practices identified that lead to improved machinability.

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