Method and device for determining center hole of crankshaft
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United States of America Patent
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Nov 3, 2015
Grant Date -
Mar 24, 2011
app pub date -
Jun 25, 2009
filing date -
Jul 30, 2008
priority date (Note) -
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Abstract
A method of determining a center hole of a material crankshaft, which is obtained through molding with first and second molds, includes: obtaining first shape data of a first portion of the material crankshaft molded by the first mold and second shape data of a second portion of the material crankshaft molded by the second mold; comparing the first and second shape data respectively with first and second designed data corresponding to the first and second molds, respectively, for computing a misalignment amount of each of the first and second portions due to misalignment between the first and second molds; adjusting, based on the misalignment amount, data corresponding to the misalignment amount to reproduce actual shape data; and determining, based on the actual shape data, a position of the center hole in the material crankshaft such that a rotation balance of the material crankshaft is within a predetermined range.
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