Golf Head Titanium MIM Parts

Product Description

The current state of the golf industry in the world is the coexistence of double standards.

The rule-breaking bats are not used in American golf, but they are used in European and Japanese games as well. In this way, today's Japanese golf clubs are still competing for the thinning of the hitting surface, which has caused a high rebound hitting surface. In the well-known heyday of titanium, many new titanium alloys appeared in the competition for such a high rebound hitting surface.

But in May 2002, the USGA and R&A suddenly issued a unified declaration on the rebound coefficient. The main point of the content is: "The variable rebound coefficient in the five years after 2003 has been lower than 0.830~0.860, and has returned to below 0.830 since 2008." The sudden announcement left golf ball manufacturers in the dark.

It can be seen from the table:

(1) In the era of high resilience, the main alloy used for the ball body material and the hitting surface material is completely different, especially the high-strength high-grade titanium alloy used for the hitting surface material.

(2) Forging or rolling materials are mostly used for hitting surface materials, and 6-4 is the main material for balls, which are basically precision casting products, and the others are forging materials.

(3) Most of the hitting surfaces are SP-700, accounting for 41%; followed by 15-5-3, accounting for 22%.

(4) The relatively new alloy is not SAT-2041, which is used in three samples, and the future market prospect is optimistic.

5. New alloy suitable for ball head material

In Japan, various titanium manufacturers are proposing new titanium alloys for ball heads as follows:

Kobe Steel

(1) KS100/KS120 (O:0.3--0.35, Fe:0.35--0.5, Si:0--0.6)

The alloy element of this alloy is only 1%, which is similar to pure titanium, the cost is low, and the strength is equivalent to that of 6-4 alloy, so its high performance-price ratio is its biggest feature. It is suitable for warm and hot processing, which is comparable to pure titanium, and can be forged for the top and bottom of the ball head.

(2) KSELF (Ti-4.5Al-4Cr-0.5Fe-0.2Cα+β alloy)

It has the same strength properties as 6-4, its forging properties are comparable to pure titanium, its cutting performance is twice that of 6-4 alloy, and its cost is cheaper than 6-4. Can be used as hitting face, sole and top.

(3) KSTi-9 (Ti-2Mo-1.6V-0.5Fe-4.5Al-0.3Siα+β alloy)

Similar to KSELF, it has similar strength properties to 6-4, with high hot and cold ductility and good weldability. Can be used as hitting face, sole and top.

(4) TVC (KS13-11-3Ti-13V-11Cr-3Alβalloy)

Because it is a β-type titanium alloy, it has excellent processability, and its momentum is higher than that of ultra-high-strength alloy 15-5-3-3. The tensile strength can reach 1550MPa, and it can be used as a very thin batting surface material.

(5) KS15-5-4-4 (Ti-15Mo-5Zr-4Al-4V)

It is a high-grade automotive titanium alloy, the same as 15-5-3, but its strength is better and its elasticity matches. It is more likely to be used as a batting surface material.

Daedong Special Steel

(1) DAT51 (Ti-22V-4Alβ alloy)

Excellent processability, high strength can be obtained after aging treatment, and its elasticity is also high, it is most suitable as a batting surface material.

(2) Bakula titanium (DAT55GTi-15V-6Cr-4Alβ alloy)

It is the latest alloy developed especially as the wall material of the batting face. Its strength and toughness are not inferior to 15-5-3 alloy, and it is expected to improve the rebound coefficient.

NKK

(1) SP-700 (Ti-4.5Al-3V-2Mo-2Feα+β alloy)

As mentioned earlier, this year's new products use this alloy most for the hitting surface material, which can be compared with the 15-3-3-3 alloy widely used in forged titanium bats. Don't worry about the alloy. It is a titanium alloy with an excellent balance for the ball head in terms of workability, strength, toughness, feel and cost.

Sumitomo Metal

(1) SAT2041 (Ti-20V-3.5Al-1Sn β alloy)

Recently, more new alloys are used on the batting surface material, which has excellent cold workability, high strength and high toughness can be obtained after proper aging treatment, and the batting feeling is good.

Nippon Steel

(1) β21S (Ti-15Mo-3Al-2.7Nb-0.25Siβalloy)

Not to mention good workability, the balance of strength and toughness is excellent, and the strength can reach 1500MPa after aging treatment. It is hoped that it can be used as a new alloy for thinning the hitting surface.

Aichi Steel

(1) Porous pure titanium

The existing putter head and wedge iron head have received good reviews. The former has a soft feel, while the latter is for its spin. The application of the bat is a future issue.

6. Future demands and new materials

Subsequent materials for future replacements are as follows:

(1) Amorphous metal

Already in a crushing defeat, may be due to technical immaturity. Basic amorphous metals are characterized by high strength, good viscosity, not easy to rust, and light specific gravity. The lighter specific gravity is exactly what golf clubs are looking for. At present, the research on Al-based, Mg-based and Ti-based amorphous metals with light specific gravity is being carried out, and the prospect is optimistic.

(2) Intermetallic compounds

Among the intermetallic compounds studied as durable thermal materials, Ni3Al has been successfully processed into 90u foils. TiAl is also expected to become the body or engine valve material of spaceships. There are many studies, and its possibility is relatively high.

(3) Shape memory alloys, superelastic alloys

The modulus of elasticity is small, but the strength is high, the corrosion resistance is excellent, and the hitting surface with high rebound is full of possibilities.

(4) Nanotechnology

The research on improving the strength and toughness of metals has been partially successful, so it is needless to say that it is an area worth noting.

The last thing to mention is that Japan's golf club market size is 123 billion yen, of which wooden clubs are 65.5 billion yen, about 2.4 million (2001 estimated value), and the clubs account for about 70%.

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