Abstract
Rotary friction welding (RFW) is a type of solid state joining which is used majorly in the recent years due to its advantages such as low heat input, efficiency of production, ease of manufacture and environment friendliness. Friction welding can be used to join different types of ferrous metals and non-ferrous metals that cannot be welded by conventional fusion welding processes. The concept of design of experiments (DOE) has been used to perform and analyze the experiments, and it is found that heating time has the greater influence on the joint strength. The increase in joint strength with increasing upset load and heating time is observed. The maximum joint strength of 610 MPa achieved at upset load of 1200 kg and heating time of 20 sec. Effect of parameter for various interactions were analysed and it shows that heating time, upset load are the effective parameters. Scanning electron microscope (SEM) analysis reveals ductile and brittle fracture patterns for the high and low tensile strength values of weld specimens.
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