Welding technology

Welding technology

HOME > Microfabrication technologies > Welding technology

Welding technology

Abundant types of joining techniques to choose from according to the type of material used.

Mitsuwa Electric endeavors to develop microfabrication products produced by various types of joining techniques. Here are some of typical joining techniques.


Laser welding

At Mitsuwa, we use welding techniques incorporating a laser when manufacturing products including the electrodes for HID lamps. The laser welding minimizes damage, which can otherwise occur during the welding process, on tungsten, molybdenum, and other materials with a high fusion point.

Tungsten to molybdenum joint

Tungsten to molybdenum joint

Cross section of the tungsten to molybdenum joint

Cross section of the tungsten to molybdenum joint

Example of joint between metals of dissimilar kinds

Example of joint between metals of dissimilar kinds

* See processing example (1) for other laser welding operations.

Resistance welding

Resistance welding is a process that uses the heat generated when current is passed through the metals to be joined. It is applied to various types of products by changing the current, voltage, and pressure according to the material used.

Typical resistance welding of metals

Typical resistance welding of metals

Typical resistance welding of metals

Typical resistance welding of metals

Typical resistance welding of metals

Typical resistance welding of metals

Brazing

Brazing is a joining process using a brazing filler metal, such as silver brazing filler metal and nickel brazing filler metal. It is often used to make a brazed joint between materials having excessively different thicknesses from each other and between a metal and nonmetal.
At Mitsuwa, we very often make a brazed joint of micro materials and thus perform laser brazing, instead of using a gas torch.

Brazing metal + nonmetal (patent applied for)

f0.35-mm W pin + carbon

f0.35-mm W pin + carbon

Cross-sectional view

Cross-sectional view

Brazing metal + metal

f0.5-mm SUS304 + f20-mm W wire

f0.5-mm SUS304 + f20-mm W wire

For tungsten processing, tungsten electrodes and other microfabrication technologies
Mitsuwa Electric Co., Ltd. TEL:03-3471-3682 FAX:03-3471-9596 Business hours: 8:30 - 17:00 (services not available on Saturdays, Sundays, and national holidays)

[Head Office / Main Plant]
6-7-9 Minamishinagawa, Shinagawa-ku, Tokyo 140-0004
[Mobara Plant]
646 Mobara, Mobara-shi, Chiba 297-0026

アクセスマップ

Page top

Microfabrication technologies that Mitsuwa put together. Mitsuwa Electric Co., Ltd. Inquiry TEL:+81-(0)3-3471-3682 Inquiry Access map