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When the tip of the welding rod contact with the surface of the welding material, it will produce short-circuit phenomenon and at the contact point will be very high temperature.

It is as other electrical appliances, welding machines also deals with unvoidable problems and malfunction. In case it is simple failures, you can fix immediately without going to shop for reparation or warranty that can make your work interruped. Some popular problems, causes and solutions about welding process below :

There are two methods of test of the quality of welds: destructive testing and non-destructive testing.

Due to the impact of gravity, the molten metal is easy to be out of the weld pool, the weld pool is located on the vertical plane so the weld in the standing position is difficult to form. Standing welds are prone to defects such as lumps and sagging. Bottom-up welding make the weld less slag.

In welding (rod welding) technology, in order to form welds, the welder must take welding rods that meet the following requirements:

SUS201, SUS304 are two popular types of stainless steel in the market today and are used for a variety of purposes....

The Tig welding technique does not use a stick or self-made offset as a method applied for very thin materials such as motorcycle parts, casing of X-ray machines and medical equipment.

In the Tig welding technique, electrodes are used with a diameter of 0.25 - 6.35mm, a length of 70-610mm and surface cleaned with a solution or grinded. After pulling strings or bars, the surface will be cleaned with appropriate solutions. Grinding means that the surface is cleaned by electrode grinding.

In Tig welding, any inert gases can be used as shielding gases. However Helium and Argon are more popular in usage because of its reasonable price and the abundant natural gas reserves.

Something to know about welding electrode that makes you have an overall outlook of welding electrode