METHOD FOR PRODUCING COMPRESSOR HOUSING
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United States of America Patent
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app pub date -
Oct 18, 2016
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Nov 27, 2015
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Abstract
A compressor housing is constructed by assembling a scroll piece and a shroud piece. The scroll piece includes an inlet cylindrical portion, a front side wall section, and an outlet cylindrical portion in which the inner wall surface of the outlet communicating section is curved to connect an inner wall surface of a scroll chamber and that of an outlet port. Fabrication of the scroll piece includes a die casting step that uses a back mold having a first projecting portion and a front mold having a second projecting portion projecting toward the back side to form an intermediate formed body wherein both the first and second projecting portions are disposed within the outlet cylindrical portion, and a cutting and removal step that removes residue portions in the intermediate formed body by cutting.
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