Welding

Welding

We use multiple welding methods to provide detailed support tailored to each product. The same applies to on-site work. We also specialize in manufacturing self-made jigs for high-precision products and work efficiency.

MIG/MAG welding machine

MIG/MAG welding machine

We use digital welding machines, called semi-automatic welding machines, and for newly manufactured products, we perform welding of large basic frames, such as maintenance tables, as well as post-machining welding of small parts.
For repairs, we also perform flake welding to repair & repair worn or damaged areas of metal.

TIG welding machine

TIG welding machine

This welding method produces a beautifully finished weld bead with excellent airtightness and watertightness. By using pulse frequency, it is possible to weld thin plates of 1.0 mm or less.
We use TIG welding for the fabrication of aluminum ladders for aircraft cockpits, water tanks, hydraulic components, and products such as stainless steel and aluminum that should not be subjected to iron spatter.
We can also perform TIG welding work on site using portable welding equipment.

Covered Arc Welding

Covered Arc Welding

Also called manual stick welding or manual welding, this welding method generates an arc by holding a welding rod between holders and bringing it into contact with the metal. It is also used for internal diameter overlay, and is also utilized for traveling work.
Furthermore, low-temperature welding is also used to overlay castings against cracks, fractures, and wear. An example of our work is the repair of a gapping hole in the bore of a hub bearing race part of a large vehicle.

Gas welding

Gas welding

Although arc welding is our main welding method, gas welding is also utilized in repair work as an important technique. When performing bronze welding and brazing, it is used to build up the cylinder block and repair inner diameter wear in the bearing race section.

Overlay welding technique

Automatic crankshaft overlay machine

Automatic crankshaft overlay machine

The Gleason automatic crankshaft overlay machine we use can automatically overlay eccentric products.
The torch follows the stroke and can overlay in the thrust direction. 0.9 mm wire is available in two types: mild steel and hardfacing.
We receive many requests from customers who use crankshafts that have been discontinued by the manufacturer, as well as from customers who are considering new products, who require highly accurate maintenance & repair.

Thermal spraying

Thermal spraying

Thermal spraying is a technology to increase durability by spraying molten metal to build up metal worn areas and hardened or rust-preventive materials.
We use a self-bonding type powder alloy for cold thermal spraying of Ni, Al, Mo and Ni, Cr, Al, which are the main ingredients of metalizing alloys, and the temperature of the base material can be suppressed to about 200°C. The temperature of the base material is therefore kept to a minimum. Therefore, thermal effects are minimized and bending is reduced. It can be used for shaft bearings and seals, as well as for inner diameter parts.
This is a difficult process that can lead to immediate cracking if the preheating during thermal spraying and the angle of the gun do not match, but we make full use of the know-how we have accumulated since our founding.

Die cutting

自動型切機

Automatic cutter

This machine cuts steel plates with gas. There are two methods of cutting: one is called pattern cutting, in which the sheet is cut into a fixed shape, and the other is to cut the sheet according to a prepared pattern.
Few manufacturing companies own automatic pattern cutting machines, but they are necessary equipment for our company to respond quickly to urgent repair projects.