Investigation of TIG Dressing and Chilling Treatment for Improving the Fatigue Strength of Welded Joints

• DOI: 10.4028/www.scientific.net/amr.279.230
• Publication Date: 2011-07-04T15:19:07Z
• Authors: Ping Zhu; Chun Yuan Shi; Cheng Jin; Xiu Juan Zhang
• Keywords: Fatigue limit

The negative temperature field with a certain strength is exerted on the TIG dressing zone in welding toes, which could decrease and offset residual stress. When of or above 450 °C, chilling treatment produce stress biaxial compression. performed when 550 °C. fatigue joints can be increased more than twice comparing those after welding.