Guide to Choosing a Welding Machine

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What are the characteristics of manual arc welders, TIG welders, CO2 welders, and so on? In what situations is it applied? Advantages of manual arc welders: 1. Wide range of applications; no inert shielding gas is required. 2. Easy to operate and simple to learn. 3. Suitable for welding relatively thick metals such as iron and steel. Disadvantages: 1. Not suitable for welding thin metal sheets. 2. Weld seams contain slag, resulting in a less aesthetical appearance compared to TIG welding. 3. Cannot be equipped with automation devices. 4. Low welding efficiency. Applications: 1. Civil use and small-scale handicrafts, such as in some hardware repair shops. 2. Construction projects, such as construction sites, steel structures, and ships.

Advantages of TIG welders: 1. Can weld most metals and alloys. 2. Particularly suitable for welding thin sheets. 3. Welding produces no slag or spatter. 4. The WSE square-wave TIG welding series is suitable for welding aluminum sheets. 5. Can be equipped with automation devices. Disadvantages: 1. Not suitable for welding thick sheets. 2. The welder has a high-frequency system that can interfere with certain electrical devices. 3. Low working efficiency. Applications: 1. Welding of thin stainless steel sheets, such as those used in stainless steel doors and windows, as well as hot water tanks. 2. Automation in the piping industry.

Advantages of CO2 gas shielded welders: 1. High welding efficiency; it is three times faster than that of manual arc welders. Advantages: 1. Strong penetration and deep weld penetration. 2. Low welding cost – only 50% of that of manual arc welders. 3. Lower energy consumption under the same welding conditions (energy-saving). 4. Wide welding range; the thinnest material that can be welded is 1 MM, while there is virtually no limit on the thickness of materials that can be welded. 5. Can be equipped with automated devices. 6. No slag remains after welding. Disadvantages: 1. High requirements for the skill level of the welder. 2. Many welding accessories are required, and it’s not as convenient to use as a manual arc welder. Applications: shipbuilding, locomotive manufacturing, automobile production, petrochemical industry, construction machinery, agricultural machinery, etc. Advantages of plasma cutters: 1. Cutting can be done using inexpensive compressed air. 2. Lower operating costs compared to flame cutting. 3. Small cut kerf and minimal deformation. 4. Safe, as there is no risk of explosion like with flame cutting. Disadvantages: 1. High cutting noise. 2. High requirements for accessories, especially when cutting thicker metal sheets. 3. Vulnerable components need to be replaced frequently. Application areas: quite wide; can be used for cutting most metal materials