MIG wires play an important role in modern welding. In order to achieve high-quality welding results, we need to know how to select and use MIG wires correctly.

How to choose MIG wire?

First of all, we need to be based on the base material, different types of base material determines the direction of wire selection. Common base materials are carbon steel, stainless steel, aluminum alloy and so on. For carbon steel, the selection of welding wire should be based on its strength level. Low-strength carbon steel can choose ordinary carbon steel welding wire, while high-strength carbon steel requires higher strength wire to ensure the performance after welding. There are many types of stainless steel, including austenitic stainless steel, ferritic stainless steel, martensitic stainless steel and so on. Each stainless steel grade has its own unique chemical composition and performance characteristics, so you need to choose the stainless steel wire to match, in order to ensure that the corrosion resistance and mechanical properties of the weld is consistent with the parent material.

Of course, the welding performance requirements with us in the scope of consideration, the strength requirements of the weld is one of the important basis for the selection of wire. If the weld needs to withstand high loads, then the higher strength wire should be selected. This ensures that the welded joint will not fracture during use. For welding with corrosion resistance requirements, such as workpieces used in harsh environments such as the chemical industry and the sea, it is necessary to select welding wires with corresponding corrosion resistance. If the welded workpiece needs to have good toughness or low-temperature performance, you also need to carefully select the appropriate wire to meet these special requirements.

Second, we need to determine the wire diameter. The choice of wire diameter and welding current, welding position and base material thickness is closely related. Generally speaking, the larger welding current and thicker base material requires the use of thicker wire. This is because thicker wires can withstand higher currents and also provide more filler metal to ensure the strength of the weld. In comparison to thin plate welding, smaller diameter wires are usually selected in order to minimize welding heat input and prevent burn-through and distortion. In different welding positions, it is also necessary to select the appropriate diameter of welding wire. For example, in the upward welding position, due to the difficulty of operation, in order to facilitate the operation and ensure the welding quality, should choose a thinner wire.

In addition to this, we need to combine the welding process parameters in the choice of wire, different MIG welding process parameters, such as welding current, voltage, welding speed, etc., also has an important impact on the choice of wire. Should be based on the actual welding process parameters to select the wire can adapt to these parameters. In the case of high current and high speed welding, it is important to ensure that the wire can melt uniformly and form a high-quality weld in the high-speed welding process. It is necessary to select a welding wire with good deposition properties and stability.

At the same time, we also need to consider the supply stability of the wire and after-sales service. Choose a wire brand with a good reputation and reliable supply channels to ensure that there will be no shortage of wire in the welding process. TANKII Alloy has a wide range of welding wires with stable quality, if you need them, please contact us.