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Latest update: 30/11/2016 18:33:07

Kouyou Pressure Welding Co., Ltd.

We specialize in friction welding and electron beam welding.

We are a metalworking manufacturer established in 1974. Our company specializes in joined metal products. We have a track record in a wide range of industries and fields, including electrical machinery, machining tools, construction, aircraft, automobiles, ships, and food equipment. We have been accumulating insight and experience in metal joining since our establishment, so we are particularly confident about our friction welding and electron beam welding technologies. We conduct burr removal (post-processing for the annealing and joining of metals) and quality inspection to respond to customer needs. We are an electron beam welding specialist, and we will provide highly satisfactory solutions to expand our business. 

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[Company strength]
Our company has been committed to metal joining since its establishment. We take pride in being a friction welding and electron beam welding specialist with outstanding advanced technologies and abundant knowledge. We possess nine friction welding machines for small-diameter (diameter 2) to large-diameter (diameter 90) friction welding. We possess three electron beam machines, including the latest models. Such a wealth of equipment and variety is rarely found in Japan. We can also conduct quality inspections, and annealing and burring after joining metals. Orders can be placed for small lots or mass production of several thousand articles, and delivery can be set in a flexible manner. 

[Business description]
Our company provides consignment manufacturing including friction welding, which is a technology for high-strength joining of different metals, and electron beam welding, for high-quality welding that causes little warping. We manufacture parts for a wide range of industries, including elevators, servomotors, and so on for the electrical industry, as well as machining, construction, aircraft, automobiles, ships, and food equipment. Our operations include cutting burrs that arise in the annealing and joining process as well as quality inspection (sonic detection, helium leak testing) whenever necessary. We accept both small lot trial manufacturing and large-scale mass production of several thousand products. 

[Industry]
Metalworking manufacturing

[Strength of products/technologies]
Friction welding is a method in which two metals are joined by frictional heat (from rotation) and high pressure. The metals are joined over the entire contact surface, and usually become stronger than the base material. The joining strength is quite high, and quality is reliable because it does not cause blowholes or other defects. This method can easily join different materials, and the materials can be selected from a wider range of options than welding. Electron beam welding is a manufacturing method in which an electron beam is irradiated on the product to be welded in a vacuum working chamber. The high convergence of the electron beam means that it requires less heat input without causing much distortion in the welding. Another strong point is that it enables delicate welding by moving or amplifying the irradiating electron beam.

[Representative's message]
Friction welding and electron beam welding, which are our lines of business, are rather unique joining methods, so I think it is first necessary to enhance recognition among potential customers. We are currently trying to participate in exhibitions and business talk meetings so that we can speak to as many interested people as possible. Please feel free to contact us if you have issues in joining metals. 

[Company structure for market development/overseas expansion]
Customers can always consult us on technical issues, which are mainly handled by the president. We can provide consultation and estimation in a very flexible and agile manner. We will prepare the organization to respond to overseas projects if there is such a a request from our customer.

[Market share/Ranking]
There are only about 10 dedicated manufacturers that conduct the two methods we specialize in. Our company is one of the major companies in the industry. 

[Awards and media coverage]
[Awards]
Excellent Friction Welding Plant, Japan Friction Joining Association (2009); Technical Service Award, Japan Friction Joining Association (2013) 

[Media]
Nikkan Kogyo Shimbun (June 23, 2015); Chubu Keizai Shimbun (May 18, 2012); Press Gijyutsu magazine (July 2010). 


[Main Clients / Business History (domestic)]
Electrical machinery manufacturers (elevator parts and motor parts, battery parts, etc.); auto makers (auto parts, equipment components, etc.); machinery manufacturers (pump parts, drive shafts, etc.); and so on.

[Main Clients / Business History (overseas)]
Electrical machinery manufacturers (equipment components).

This company is recommended by the following support organizations.

Chubu Head Office, SMRJ
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