Low-density alloy for golf club head

Inactive Publication Date: 2008-02-28
CHEN TAI FU +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0009]An object of the present invention is to provide a titanium alloy in which the proportion between Al and V in the titanium alloy is adjusted to reduce the density while maintaining

Problems solved by technology

As a result, the scope of the sweet spot of the ball-hitting face of the golf club head

Method used

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  • Low-density alloy for golf club head
  • Low-density alloy for golf club head

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Example

[0020]A first example of a low-density alloy for a golf club head in accordance with the present invention is a Ti—Al—V alloy in which titanium (density 4.51 g / cm3), aluminum (density 2.70 g / cm3), and vanadium (density 5.79 g / cm3) are the main compositions (See Table 2).

[0021]Turning now to FIG. 1, a photomicrograph of a cross section of the low-density alloy for the golf club head in accordance with a preferred embodiment of the present invention is illustrated.

[0022]The Ti—Al—V alloy (or simply titanium alloy) comprises 84 wt %-94 wt % of Ti, 6.5 wt %-9.5 wt % of Al, and V less than 1.5 wt %. The titanium alloy has a density smaller than 4.40 g / cm3. Preferably, the titanium alloy comprises 91 wt % of Ti, 8 wt % of Al, and 1 wt % of V (Ti-8Al-1V, see Table 2).

[0023]As compared to the conventional Ti-6Al-4V alloy, the density of the titanium alloy in accordance with the present invention is reduced and the toughness of the titanium alloy in accordance with the present invention is i...

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Abstract

A low-density alloy for a golf club head includes 84 wt %-94 wt % of Ti, 6.5 wt %-9.5 wt % of Al, and/or V less than 1.5 wt %, providing a Ti—Al—V-based alloy having a density smaller than 4.40 g/cm3. Trace elements such as Mo, Cr, Fe, Si, and B may be added into the Ti—Al—V-based alloy to provide a titanium alloy having a low density and high elongation.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a low-density alloy. More specifically, the present invention relates to a low-density alloy for a golf club head.[0003]2. Description of Related Art[0004]Conventional golf club heads are generally made of stainless steel, such as SUS630 or SUS431 (The U.S. AISI Standard 630 type and 431 type). The process is carried out by a precision dewaxing method in which the density of the material is greater and the strength of the material is lower. However, a thickness of the golf club head must meet the strength requirement. To comply a weight limiting regulation of the golf club head, dimensions of the conventional golf club heads cannot be expanded or enlarged. As a result, the scope of the sweet spot of the ball-hitting face of the golf club head is substantially reduced, leading to an increase in the rate of the ball-hitting failure.[0005]To solve the above problem, titanium alloy has been ...

Claims

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Application Information

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IPC IPC(8): C22C14/00
CPCC22C14/00
Inventor CHEN, TAI-FUCHIANG, MING-JUIKUO, SU-CHUNHSIAO, WEI-CHUN
Owner CHEN TAI FU
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