Weight member for a golf club head

Inactive Publication Date: 2005-10-13
FUSHENG IND CO LTD
View PDF4 Cites 78 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] An object of the present invention is to provide a weight member for a golf club head, wherein molybdenum is added to increase the density of the weight member and to impro

Problems solved by technology

Although the powder metallurgy is widely used, there exists several disadvantages, including high cost for molds, low stretchability of products, long processing time, aptness to thermal expansion/shrinkage, and difficulty in forming delicate patterns, letters, serial number, trade names, etc.
However, if the mixture ratio of the nickel, iron, and tungsten was not properly controlled, a pearlite structure was precipitated in a base of a γ (iron, nickel) phase of the WFeNi alloy, deteriorating the rust-resisting property of the weight member.
Fur

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Weight member for a golf club head
  • Weight member for a golf club head

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A preferred embodiment of the present invention is now to be described hereinafter in detail.

[0016] Referring initially to FIG. 1, a golf club head in accordance with the present invention includes a golf club head body 20 having a recession 21, and a weight member 10 engaged in the recession 21 of the golf club head body 20 by means of welding, insertion, pressing, or brazing. The shape of the weight member 10 and the location of the recession 21 can be altered according to the product need. The weight member 10 can be made by powder metallurgy.

[0017] In a case that the weight member is manufactured by a precision casting process, metals are fed into a high-temperature furnace at a temperature between 1450° C. and 1750° C. (preferably 1660° C.-1680° C.) in a specific metal melting sequence and a specific composition ratio while controlling the mixture ratio among tungsten, molybdenum, and nickel, thereby forming a molten WMoNi alloy. Next, the molten WMoNi alloy is poured ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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.

Description

CROSS REFERENCE TO RELATED APPLICATION [0001] This application is a continuation-in-part application of U.S. patent Ser. No. 10 / 673,418, filed on Sep. 30, 2003.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a weight member for a golf club head. In particular, the present invention relates to a weight member for a golf club head made of WmoNi alloy having a specific gravity ranging between 8.6 and 13.3. [0004] 2. Description of Related Art [0005] A conventional weight member for a golf club head is made by powder metallurgy in which metal powders of high density and high rigidity such as tungsten having a density of 19.30 g / cm3, iron having a density of 7.8 g / cm3, and nickel having a density of 8.9 g / cm3 are pressed to form a predetermined shape of the metal powders. Then the shaped metal powders are sintered to form a WFeNi weight member for a golf club head. Although the powder metallurgy is widely used, there exists several dis...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A63B53/04A63B53/06
CPCA63B53/04A63B53/06A63B53/047A63B2053/0433A63B2209/00A63B53/0433A63B60/00
Inventor HUANG, CHUN-YUNGCHEN, CHAN-TUNG
Owner FUSHENG IND CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap