Effect of Welding Velocity on Properties of Welding Joint of Austenitic Stainless Steel

The MIG welding research on 304 austenitic stainless steel plates with 3 mm thick was carried out.The results showed,fast welding velocity is benefit to enhancing joint's quality,because faster welding velocity may help to reduce the region of welding seam and heat affect zone.But too fast welding velocity is not good because of the produce of pores,and the joints will suffer from low strength stability and poor anti-corrosion.Appropriate welding velocity will keep 304 austenite stainless steel welding joints having good mechanical properties and corrosion resistance.