MECHANICAL CHARACTERIZATION OF FRICTION WLDED DISSIMILAR STEELS AT 1000 RPM

Amit Handa, Vikas Chawla

Abstract


Joining of dissimilar metals is one of the most essential needs of industries. There are various welding methods that have been developed to obtain suitable joints in various applications. However, friction welding is a joining process that allows more materials and material combinations to be joined than with any other welding process. Continuous drive friction welding studies on austenitic stainless steel and ferritic steel combinations has been attempted in this investigation. Friction welding process parameter optimization, mechanical characterization and fracture behavior is the major contribution of the study. The microhardness across the weld interface was measured and the strength of the joint was determined with tensile tests and impact tests. Also the tensile fractured specimens were examined by scanning electron microscopy so as to study its fracture behavior. The experimental results indicate that axial pressure has a significant effect on the mechanical properties of the joint and it is possible to increase the quality of the welded joint by selecting the optimum axial pressures.

Keywords


Friction welding; Tensile strength; SEM; Impact toughness; Axial pressure

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References


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Copyright (c) 2013 Amit Handa, Vikas Chawla

License URL: http://creativecommons.org/licenses/by-nc-nd/3.0/

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