Ichikawa town in Hyogo prefecture is the birthplace of soft iron forging in Japan.
Soft iron forging is one of the traditional methods of metal processing. The temperature of the metal needs to be raised until right before the metal starts dissolving. You need to beat the metal to exert pressure on it, break the porosity in the interior metal, miniaturize the size of the crystal, and mold it into the desired shape at the same time as adjusting the crystal orientations and enhancing the strength.
Since ancient times this method was used as a manufacturing method of making the Japanese sword and matchlock gun, the technique has improved along with the pursuit of quality improvement. The structure of metallic fiber doesn't break down in the process of plastic deformation of the material so that the forging flow line continues. (Refer to the following diagram)
The characteristic of this forging method is that the fiber becomes dense, therefore fewer cavities occur compared to casting, and stronger components can be made.
The forging technique has been utilized in creating metal components when failure is not an option, such as the wheels and the axle of the bullet-trains and local trains, and all sorts of detail components in car engines or aircraft engines.
We at Kyoei Golf carry on this tradition, transform the Japanese swords into golf irons, and we're committed to the Japanese integral type forging.（Made in Japan)
You can enjoy and experience the good quality of the original material and feel the efficient power conductivity by producing an iron from a single piece of metal.
The forging flow line
The forging flow line is the flow of metal particles which are connected ideally with each other like a line.
Our Kyoei Golf club iron made from S25C(carbon steel) has an ideal forging flow line from face to neck.
The excellent hitting feel and flexible elasticity are generated by this ideal forging flow line and connection.
What is the soft iron forging method?
We are committed to this traditional forging method which we have used to produce products for more than half a century.
We will continue handing down this method to future generations which has now almost disappeared in Japan.
Forged soft iron is the one you can make finer adjustments with.
A production system considering personal use
You can feel as the iron catches the core, and the hitting feel is stable and premium soft! And what is even more important is that you can adjust the loft angle and lie angle. As we human beings play golf, the golf swing is influenced by our physical condition. Therefore, this soft forged iron can adjust for small natural changes in our golf swing.
A production system
We are the only company in Japan with an integrated manufacturing system
Our inspection system includes about 80 processes conducted by a total of 40 people. Until the iron metal bar is turned into the iron club, about 80 important processes have to be gone through and a total of 40 people get involved in those processes. Not only is passing each self-inspection difficult, but also the final check needs to be done by the top Inspection Department.
This strict inspection system is the biggest reason why we still retain our Kyoei Golf quality for over 60 years.