News
Royal Precision iron
shafts take top two spots at Match Play
America’s first steel shaft manufacturer, Royal Precision claimed first- and
second-place at the WGC-Accenture Match Play Championship with its
Rifle® Project X iron
shafts. It was the second consecutive win for Royal Precision products at
the WGC-Accenture Match Play Championship, and a dominate victory for the steel
shaft-maker favored by the Top 25 ranked golfers in the world.
“The WGC-Accenture is another great win, and we’re very excited to see our
technology and innovation in steel shaft design deliver superior performance at
the highest levels of the game,” says Ray Lucas, senior vice president of sales
and marketing for Royal Precision. “With the world’s best players choosing to
play Rifle steel shafts by a 3:2 margin over our nearest competitor, this
victory is a great testimonial to the quality and performance of Royal Precision
products.”
According to the World
Golf Ranking on 16 February 2006, shafts
designed and manufactured by Royal Precision are the clear favorite, with 13 of
the World’s Top 25 Ranked golfers playing Rifle. Among the other steel brands,
the closest competitor fielded only eight players and another brand had two
players, while two top golfers played graphite shafts in their irons.
Only Rifle steel shafts incorporate four unique technologies to generate
unparalleled performance and consistency. These sophisticated shafts feature:
Frequency Matching that perfectly matches a set of clubs through electronic
calibration; Stepless Design Technology that eliminates the energy-robbing
‘steps’ found on most other steel shafts, and provides greater accuracy and a
smooth, yet solid, feel at impact; Patented Internal ‘Rifling’ that transfers
energy more efficiently than other steel shafts, reduces vibration and increases
distance; and advanced Flighted Technology that features produces variable
ball trajectories for different clubs
within a single set.
Why use titanium for a wood head?
Whenever an item needs to be made light weight and high
strength, titanium is always considered for its manufacture. Most
titanium alloys possess the same strength as common grades of stainless
steel, but are 40% less dense (the weight per volume area). Titanium
therefore is commonly chosen for the manufacture of aircraft parts
and medical equipment where strength at a lightweight is important.
In a wood head, even though a driver head, for example, will always be
designed to weigh between 190g – 205g, the lower density of titanium allows
the head to be made much larger in size and still possess the same strength
than if a steel alloy were used. Steel's higher density means the maximum
size for a wood head is about 310-320cc before the head would exceed the
weight requirement for a normal club. Titanium driver
heads can be made larger than 500cc and still weigh 190g – 200g because of
the lower density.
In addition, titanium possesses a higher strength to modulus ratio than
steel. This means it is possible to manufacture the face of a wood head
from titanium and achieve a better spring face performance (high COR) than with all but
extremely high strength steel alloys.
What about Titanium and it's alloys are so important?
Metallurgy has developed hundreds of different
tests to compare the mechanical properties of metals to each other. In
golf, for the manufacture of club heads, there are four key metal mechanical
properties in the production of titanium wood heads. A titanium wood head is
constructed of 3 to 4 pieces welded together. Each different piece
(face, crown, skirt, sole) has different stress put on it and is looked to
perform different duties, therefore each piece can be made of differing
titanium alloys. The mechanical properties needed to produce a high
COR face are not the same as the crown.
The key properties of Titanium for wood head design are:
Density The ratio of the mass of a substance to its
volume, expressed, for example, in units of grams per cubic centimeter or
pounds per cubic foot. The density of a pure substance varies little from
sample to sample and is often considered a characteristic property of the
substance. Density often is taken as an indication of how "heavy" a
substance is. Iron is denser than cork, since a given volume of iron is more
massive (and weighs more) than the same volume of cork. It is often said
that iron is "heavier" than cork, although a large volume of cork obviously
can be more massive and thus be heavier (i.e., weigh more) than a small
volume of iron. This is a property that is very important in all parts
of the club head as we like as light, low density, a club head as possible.
Tensile Strength The
measure of a material's ability to resist rupture. In other words, how much
force is required to fracture the material. Tensile strength is also defined
in PSI or KSI. This too is also important for the manufacture of the face
and body parts of a wood head.
Hardness A comparative scale measurement of the
ability of a material to resist surface deformation. In other words, how
much does one material resist permanent denting of its surface. While there
are several scales of comparison for hardness, the one most commonly used in
conjunction with golf club head design is the Rockwell Scale of Hardness.
Hardness is important for all parts of a wood head, though more important for
the face.
Elongation A comparison of the ductility of
different materials. In other words, how easy is one material to stretch
than another before it breaks such that the higher the number the easier to
stretch the material before breaking. Elongation is defined as a per-cent of
the dimension of the test piece, such that a higher per-cent value
represents greater ductility of the material. Elongation is an important
property for both the face and the body parts of the wood head because it
will offer an indication of the ability of the face or top crown to flex
before permanent damage could occur.
For more
information go to IN Golf's Titanium & Wood Head Encyclopedia
http://ingolfcustomgolf.com/woodheads-titanium.htm
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