Study on the TIG Automatic Welding Process of Dissimilar Steel of 30CrMnSiA and 1Cr18Ni9Ti
In this paper,TIG automatic welding process was studied aiming at the difficulties in welding 30CrMnSiA and 1Cr18Ni9Ti dissimilar steel.There was no defect on the surface and internal quality of welding joint obtained by TIG automatic welding process.The microstructure of weld was analyzed,and the grain coarsening in the heat affected zone of 1Cr18Ni9Ti side was found in the heat affected zone of 30CrMnSiA.It was found that the tensile strength at room temperature was close to 1Cr18Ni9Ti parent material.Good mechanical properties can be obtained by using TIG automatic welding process.
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维普
