TIG Welding of 0.8mm Stainless Steel Sheet
Tungsten Inert Gas (TIG) welding is a commonly used welding process, which has the advantages of weldable high and low alloy steel, stainless steel and non-ferrous metal sheets. The 0.8mm stainless steel sheet is one of the most commonly used plate thickness for TIG welding in the industrial production. This paper focuses on the characteristics, technical requirements and production application of TIG welding for 0.8mm stainless steel sheets.
Characteristics of 0.8mm Stainless Steel Sheet TIG Welding
TIG welding, also known as Gas Tungsten Arc Welding (GTAW), is an arc welding process in which a non-consumable tungsten electrode is used to generate an electric arc. The process is suitable for a variety of metal materials due to the fact that multiple welding processes can be performed under protective gas. The TIG welding process was initially used on non-ferrous metals and later refined for welding stainless steel. More specifically, TIG welding has become an important fabrication process in industrial production due to its high degree of adaptability. It is mainly used for welding joints in 0.8mm stainless steel plates, as well as in other thick metal sheets or pipes.
The 0.8mm stainless steel sheet TIG welding process has the following characteristics:
1. Low distortion and high welding strength: TIG welding has a smaller heat-affected zone and lower distortion than other welding processes, which can ensure the good performance of weld joints with high strength.
2. Good corrosion resistance: The corrosion resistance of welded stainless steel pipes depends on the choice of welding materials, welding process, welding parts, and protective gas for TIG welding has good shielding effect.
3. Smooth welding surface: The welding surface is smooth and the degree of porosity is small, which not only improves the quality and safety of the weld joint, but also ensures the aesthetic appearance.
4. High welding speed: The TIG welding process uses non-consumable tungsten electrodes, and the filler materials can be added to the weld joint automatically. This results in a higher welding speed and production efficiency.
Technical Requirements of TIG Welding for 0.8mm Stainless Steel Sheets
In order to obtain high-quality welding quality and ensure welding safety, the welding process must be strictly controlled and the welding operation must be completed according to the technical requirements. The specific requirements for the 0.8mm stainless steel sheet TIG welding are as follows:
1. Power Supply: The welding machine should be able to adjust the welding current according to the thickness of the plate, generally 80-160A, and the voltage value should be within 17V.
2. Selection of Electrode: The selection of electrode depends on the plate material and thickness, for the 0.8mm stainless steel plate, the tungsten electrode should have a diameter of 1.6-3.2mm.
3. Protection Gas: Argon protection gas should be used during welding process, the flow rate needs to be adjustable, and the flow rate shouldadhere to the requirement of 20-30L/min.
4. Welding Joint: The groove joint form and weld joint type should be determined according to the purpose of the pipe, generally V-groove butt joint or single-side V-groove butt joint can be used to reduce welding stress concentration.
Application of The 0.8mm Stainless Steel Sheet TIG Welding in Industrial Production
Due to its various advantages, TIG welding has become an important process in the industrial production. The 0.8mm stainless steel sheet TIG welding process can be widely used in the production of boilers and pressurized vessels, aerospace, metallurgy, petroleum and other industries. In order to ensure good welding quality and production efficiency, many industries are equipped with automated TIG welding machines to complete automated welding operations. The advantages of automated TIG welding machines are numerous, including automatic arc length control, adjustablepressure, and independent programming control using touch screen interface. As such, not only is the welding quality ensured, but it also ensures safety and reduces production cost.
Conclusion
TIG welding of 0.8mm stainless steel sheet is a widely used welding process in industrial production, which has the advantages of low distortion, good corrosion resistance, high strength and smooth welding surface. The welding process should meet the specific technical requirements to ensure the weld joint quality and safety. The automated TIG welding machine is widely used to improve welding efficiency and reduce production cost. In a word, TIG welding of 0.8mm stainless steel sheet is an important and competent welding process in the industrial production.
