Method of making golf clubs of thermoplastic composite material
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United States of America Patent
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Oct 31, 2000
Grant Date -
N/A
app pub date -
Oct 14, 1998
filing date -
Oct 14, 1998
priority date (Note) -
Expired
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Abstract
A method of making golf clubs of thermoplastic composite material is disclosed. The present method is characterized in that the composite material wound around a mandrel is consolidated by using a metal sheet. This method comprises the steps of: (a) providing a tapered mandrel, and wrapping the mandrel with at least a sheet of thermoplastic prepreg to form a laminated outer shell; (b) heating the thermoplastic prepreg to a molten state; (c) enclosing the laminated outer shell with at least a metal sheet, and heating the metal sheet and the laminated outer shell while constricting said metal sheet to thereby consolidate the molten prepreg to form a tubular body; and (d) releasing the metal sheet and withdrawing the mandrel from the tubular body.
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