Method of making a wax mold for a golf club head

• US 8,020,606 B2
• Filed: 09/15/2008
• Issued: 09/20/2011
• Est. Priority Date: 09/15/2008
• Status: Expired due to Fees

• Current Assignee: O-Ta Precision Industry Co. Ltd.
• Original Assignee: O-Ta Precision Industry Co. Ltd.
• Inventors: Chao, Hsiao-Wen, Sun, Lung-Sheng, Liu, Yung-Yueh
• Primary Examiner(s): Lin; Kuang
• Assistant Examiner(s): Yoon; Kevin E
• Application Number:
  US12/210,924
• Publication Number:
  US 20100065240A1
• Time in Patent Office: 1,100 Days
• Field of Search: 164/35, 164/44, 164/45, 164/132, 164/516, 264/220, 264/225, 264/227, 473334-339
• US Class Current: 164/516
• CPC Class Codes: B22C 7/02 Lost patterns
• CPC Class Codes: B22C 9/04 Use of lost patterns
• CPC Class Codes: B29C 33/3842 Manufacturing moulds, e.g. shaping the mould surface by machining
• CPC Class Codes: B29C 33/52 soluble or fusible in particular used in injection moulding B29C45/4457

Abstract

A method of making a wax mold for a golf club head includes the steps of: a) positioning a male die in a cavity of a female die; b) injecting and filling dissolvable wax into a gap between an outer surface of the male die and an inner surface of the female die; c) cooling and solidifying the dissolvable wax in the gap to obtain a wax shell; d) removing the wax shell from the male die and the female die, the wax shell being provided with a hole extending through inner and outer surfaces of the wax shell; and e) inserting a wax plug into the hole to form the wax mold.

Claims

1. A method of making a wax mold for a golf club head, comprising the steps of:

a) positioning a male die in a cavity of a female die;

b) injecting and filling dissolvable wax into a gap between an outer surface of the male die and an inner surface of the female die;

c) cooling and solidifying the dissolvable wax in the gap to obtain a wax shell;

d) removing the wax shell from the male die and the female die, the wax shell being provided with a hole extending through inner and outer surfaces of the wax shell; and

e) inserting a wax plug into the hole to form the wax mold, the wax plug projecting partially from at least one of the inner and outer surfaces of the wax shell.

2. The method as claimed in claim 1, wherein the wax plug is glued to the wax shell.

3. The method as claimed in claim 2, wherein the hole is stepped to have a large hole section and a small hole section.

4. The method as claimed in claim 3, wherein the large hole section extends through the outer surface of the wax shell, and the small hole section extends through the inner surface of the wax shell.

5. The method as claimed in claim 4, wherein the wax plug is tubular, projects from the inner surface of the wax shell, and has a flange part fitted in the large hole section.

6. The method as claimed in claim 5, wherein the wax plug further includes an internally threaded part projecting inwardly of the wax shell.

7. The method as claimed in claim 4, wherein the wax plug is tubular, projects outwardly from the outer surface of the wax shell, and has a neck part inserted into the small hole section of the wax shell.