Method for manufacturing a high-strength steel wooden golf head
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United States of America Patent
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Jan 17, 2017
Grant Date -
Jul 2, 2015
app pub date -
Dec 19, 2014
filing date -
Dec 31, 2013
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Abstract
A method for manufacturing a high-strength steel wooden golf head solves the difficulty in reducing the thickness of the striking faceplate of a conventional wooden golf head. The method includes placing a shell mold having a crucible portion and a cavity portion in communication with the crucible portion on a rotary table, placing a metal ingot in the crucible portion, followed by melting the metal ingot into molten metal in a vacuum environment, rotating the rotary table to cause molten metal to flow into the cavity portion under a centrifugal force, gradually slowing down the rotary table after the molten metal cools and solidifies, destroying the shell mold to obtain a casting including a cast product portion, and separating the cast product portion from the casting to obtain a casting product of the wooden golf head having a tensile strength of 240-350 ksi and a minimum thickness of 1.4-1.8 mm not including a groove depth of the striking faceplate.
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