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Spot welding tips are the joining points, which weld two pieces of metals together with the help of high electricity. When the current passes through the metals, a huge amount of heat is generated that a welding hunk is formed, which holds the two metal pieces intact. Various styles of tips are available to reach even a very crucial place like within the bolt head, to be welded. Spot welding tips are of different sizes and patterns to suit the individual item that is to be welded. To choose the best brand is surfing for a tip that is a best conductor of electricity and made up of pure alloy, which will let the tip to accomplish the utmost temperatures and not distort. Usually, copper alloys are used in the manufacture of welding tips for its excellent conductive property. The tips are cooled down either by water or air. The water-cooled tips are more durable. The electricity passes through the tip to the metal piece, which is the crucial point that maintains the heat during the process. The spot welding tips are mainly classified into two – refractory metal alloys and copper-based alloys. In the former classification, the tips are usually used for high power and resistance but they are poor conductors whose conductivity is only 40 percent when compared to copper. Under copper-based alloys, there are many types: Truncated cone, angled straight tip, radius faced, dome nose, flat nose, pointed nose and offset nose. The spot welding tips also come in numerous sizes for different functions. The diameter of the tip is very vital, since the electrode tip’s size, controls the resistance spot weld. Small tips results in weak welding, while very large ones lead to overheating of metals, which build up air bags. Therefore, various resistance factors need to be considered before determining the diameter of the tip.
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