Introduction To Projection Welding Nuts

Projection welding is a kind of high-efficiency welding method which can be used in place of arc welding, brazing and biting. The processing speed of this method is fast, and there is no other consumption except power, which is a great feature. As a professional fastener manufacturer, Xinchi Fastener Company has many years of experience in the fastener industry. Today, we will introduce to you what is projection welding nut and its advantages and disadvantages.

What is a projection welding nut?

The so-called projection welding nut is mainly used to weld stamping parts of mild steel and low alloy steel. There are many kinds of projection welding, in addition to plate projection welding, bolt, screw parts of convex welding, wire cross projection welding, pipe projection welding and plate T projection welding.

The advantages of projection welding nut:

The projection welding nut can be used to weld multiple spots simultaneously in the inner shell of a welding cycle of the welder. How many spots can be welded at a time depends on the uniform electrical force and welding current applied to each bump by the welder.

Because the welding current is concentrated at the bumps and there is no shunt through the adjacent solder joints, smaller lap amounts and spot spacing can be used.

The Position of the projection welding point is more accurate than that of the spot welding point, and because the size of the projection point is uniform, the quality of the projection welding point is more stable. Therefore, the size of the projection welding spot is smaller than that of the electric welding spot.

Since the projection points can be set on one part, the traces on the exposed surface of another part can be minimized.

Projection welding uses flat large electrodes, and its heat and wear degree is much smaller than spot welding, which can prolong the service life, thus saving the dressing and dismantling electrode time, and reducing the electrode maintenance cost.

Because the projection nut can weld many points at the same time with smaller convex points, the welded member with small deformation can be obtained.

Projection welding can effectively overcome the core offset, so it can weld large thickness ratio (up to 6:1) parts.

The disadvantages of projection welding nut:

Sometimes additional work is required to prefabricate one or more bumps.

When the same electrode is used to weld several solder joints at the same time, the alignment of the workpiece and the size (especially the height) of the salient points must be maintained with high precision tolerances to ensure uniform electrical force and welding current, so that the quality of each solder joint is uniform.

To weld multiple solder joints at the same time, it is necessary to use a high-power welder with high electrode pressure and high mechanical precision, and its pressure mechanism has a high following character.

Anji Xinchi Fastening Piece Co., Ltd is a one-stop solution fasteners company and is the designated fastener supplier to“STAPLE”. As a trusted fastener supplier, Xinchi can offer a wide range of high-quality fasteners, including 4 prong t nuts, screws, bolts, rivets, washers, etc. If you want to know more about fasteners or want to wholesale fasteners, please feel free to contact us. And then our experienced and expert service team will reply to you as soon as possible.