Welding Techniques: Guide to electrode grinding in TIG welding

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.

Depending on the actual application, type of material, thickness, type of joints, we choose different grinding methods. For example, the circular grinding and electrode method is applied when welding with AC current and the sharpening method is used for DC welding.

Stability and concentration arc welding is influenced by shape and electrode grinding. Grind the electrode on the grindstone is fine grain size and grind in the direction as shown. The best grinding height should be between 1.5 and 3 times the diameter of the electrode. After tapering, the cone should be rounded slightly to help protect the electrodes from damage when the welding current density is too high. Welders often flatten the electrode tip.

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Rule of the electrodes: When the angle grinding electrode is smaller, ie the electrode is pointed, the greater the depth of the puddle, the narrower the weld width.

When conducting welding with DC current or alternating AC current, the electrode tip should be hemispherical. To get the right kind of welding head for DC or AC use, we pre-arc on the thick material. Arc arc posture: The electrode in a straight direction perpendicular to the material surface. The use of semiconductor poles allows the electrode area to heat more, requiring larger material surfaces to limit the current density.

Especially for aluminum welding, aluminum oxide grips the tip of the electrode, which enhances the radiation of electrons and better protects the electrode.

Particularly electrodes with electrodes Zirconium are automatically formed hemispheres when soldered on the AC line, but arc welding is not stable.

Rule of the electrodes: When the angle grinding electrode is smaller, ie the electrode is pointed, the greater the depth of the puddle, the narrower the weld width.

When conducting welding with DC current or alternating AC current, the electrode tip should be hemispherical. To get the right kind of welding head for DC or AC use, we pre-arc on the thick material. Arc arc posture: The electrode in a straight direction perpendicular to the material surface. The use of semiconductor poles allows the electrode area to heat more, requiring larger material surfaces to limit the current density.

Especially for aluminum welding, aluminum oxide grips the tip of the electrode, which enhances the radiation of electrons and better protects the electrode.

Particularly electrodes with electrodes Zirconium are automatically formed hemispheres when soldered on the AC line, but arc welding is not stable.