Weight member for a golf club head

• US 20050227781A1
• Filed: 06/13/2005
• Published: 10/13/2005
• Est. Priority Date: 09/30/2003
• Status: Abandoned Application

• Current Assignee: FU Sheng Industrial Company Limited (Cooperative Valiant APO Global UA)
• Original Assignee: FU Sheng Industrial Company Limited (Cooperative Valiant APO Global UA)
• Inventors: Chen, Chan-Tung, Huang, Chun-Yung
• Application Number:
  US11/150,177
• Publication Number:
  US 20050227781A1
• Time in Patent Office: Days
• US Class Current: 473/338
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/047 iron-type
• CPC Class Codes: A63B 53/06 adjustable
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like

Abstract

A weight member for a golf club head is made of a WMoNi alloy by powder metallurgy or a precision casting process. The WMoNi alloy includes tungsten 1-35 wt %, molybdenum 4-55 wt %, and nickel 25-95 wt %, and has a specific gravity ranging between 8.6 and 13.3. Molybdenum increases the density of the weight member and improves the rust-resisting property of the weight member. The tungsten, molybdenum, and nickel provide a uniform metallographic phase. Uniformity of polishing of the weight member is thus improved.

Claims

1. A weight member for a golf club head, the weight member being made by a WMoNi alloy, the WMoNi alloy comprising molybdenum 4-55 wt %, nickel 25-95 wt %, and tungsten 1-35 wt %, wherein a melting point of the WMoNi alloy being lowered by the weight percentage of said tungsten less than 35 wt %.

2. The weight member for a golf club head as claimed in claim 1, wherein the weight member is manufactured by a precision casting process.

3. The weight member for a golf club head as claimed in claim 1, wherein the weight member is manufactured by powder metallurgy.

4. The weight member for a golf club head as claimed in claim 1, wherein the WFeNi alloy has a density of 8.6 g/cm³-13.3 g/cm³.

5. The weight member for a golf club head as claimed in claim 1, further comprising silicon of less than 1.5% to increase flowability during casting.

6. The weight member for a golf club head as claimed in claim 1, further comprising at least one component for improving a mechanical property of the weight member.

7. The weight member for a golf club head as claimed in claim 6, wherein said at least one component includes manganese of less than 1.0%, copper of less than 4.0%, vanadium of less than 1.0%, and niobium of less than 1.0%.