|
|
Back Number > > Topics > > 2005 > > February
|
|
|
| |
| The information on this website is presented "as is." Product availability, organization, and other content may differ from the time the information was originally posted. Changes may take place without notice. |
| Kobe steel supplies new titanium alloy for Mizuno golf club |
|
February 22, 2005
Kobe Steel has developed a new titanium alloy used in
the face of Mizuno Corporation's JPX E300 driver.
The alloy is commonly called "Nama Titan"
(Raw Titanium), because after the sheet is cold-rolled,
it is processed and formed without heating and
heat-treatment. The JPX E300 driver, which went on
sale last month, is sold only in Japan.
The new Ti-15Mo-3Al alloy has an unmatched low modulus
of elasticity leading to a high coefficient of
restitution (COR). With the new material containing
15% molybdenum and 3% aluminum, strength is maintained
while the lowest modulus level ever for this strength
was achieved by heat-treatment of the club head in
the manufacturing process.
In the conventional process, titanium bar and sheet are
hot forged and pressed to form golf club heads.
However, Mizuno has omitted the heat-treatment
process to fully utilize the material
characteristics of the new titanium alloy.
By introducing a new club head design and new
face material, Mizuno has created a driver with
a carry that is 10 yards longer, compared with
its existing drivers having a head speed of
43 m/s, the average for amateur golfers.
Kobe Steel has developed more titanium alloys than
any other Japanese titanium manufacturer, not only
for golf clubs, but also for aircraft,
auto components, and other applications.
Leveraging its edge as an integrated titanium
manufacturer from ingot melting to final products,
Kobe Steel continues to meet user needs by
developing materials for their varied requirements.
|
|
Mizuno JPX E300 driver with new titanium alloy face
|
|
Club Face Manufacturing Process
|
|
|
Cold-rolled titanium sheet
|
|
|
|
|
Face punching
|
|
|
|
|
Cold forming
|
|
Back to Top
