Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Weight member for a golf club head

a golf club head and weight technology, applied in the field of weight members, can solve the problems of high mold cost, long processing time, low stretchability of products, etc., and achieve the effect of improving the rust resistance property of the weight member and increasing the density of the weight member

Inactive Publication Date: 2005-03-31
FUSHENG IND CO LTD
View PDF1 Cites 68 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention provides a golf club head with a weight member made of a special alloy called WMoNi. This alloy is made through a process called powder metallurgy or precision casting. Molybdenum increases the density of the weight member and makes it resistant to rust. Tungsten, molybdenum, and nickel provide a uniform metallographic phase, which improves the shining finishing of the weight member. This results in a more uniform and high-quality product."

Problems solved by technology

Although the powder metallurgy is widely used, several disadvantages exist, 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.
Further, cracks were apt to be generated while welding the weight member to the golf club head body.
Thus, it is difficult to control the processing conditions.
In conclusion, since the conventional weight member made of WFeNi alloy contains iron such that the weight member has poor characteristics in the metallographical composition, rust-resisting property, and welding.
The assembling procedure, appearance, bonding strength, manufacturing tolerance, and life of the golf club product are adversely affected.

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

[0013] A preferred embodiment of the present invention is now to be described hereinafter in detail.

[0014] 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 can be made by powder metallurgy.

[0015] 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 into a preheated mold with a specif...

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

PropertyMeasurementUnit
densityaaaaaaaaaa
densityaaaaaaaaaa
densityaaaaaaaaaa
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 1-70 wt %, molybdenum 4-55 wt %, and nickel 25-95 wt %. 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 shining finishing of the weight member is thus improved.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a weight member. In particular, the present invention relates to a weight member for a golf club head. [0003] 2. Description of Related Art [0004] 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 and formed and then sintered to form a WFeNi alloy that forms the weight member for a golf club head. Although the powder metallurgy is widely used, several disadvantages exist, 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. [0005] Another method for manufacturing a weight member made of WFeNi alloy includes...

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
Patent Type & Authority Applications(United States)
IPC IPC(8): A63B53/04A63B53/06
CPCA63B53/04A63B53/06A63B53/047A63B2053/0433A63B2209/00A63B53/0433A63B60/00
Inventor CHEN, CHAN-TUNGHUANG, CHUN-YUNG
Owner FUSHENG IND CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com