A Study of the Mechanical Properties of the Hardening Processes on the AISI 420 Stainless Steel by Friction Welding for Shaft Welding Industries
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Abstract
The purpose of this research is to identify a key process parameter in a friction welding of stainless steel AISI 420 with a diameter of 10 mm and a length of 100 mm. The process parameters, including a compression pressure, compression dwell time, and rotational speed, were ranged between 20 and 30 bars (20, 25, 30 bars), between 5 and 9 seconds (5, 7, 9 seconds), and 2500 rev/min, respectively. The specimens can be classified into four categories as a commercial condition, hardened and quenched, hardened and tempered, and hardened and full annealed. Hardness and tensile strength of each combination were investigated and it can be concluded that the highest tensile strength was detected in a hardened and tempered specimen with the compression pressure of 30 bars and compression dwell time of 9 seconds, while the highest hardness was found in a hardened and quenched specimen with the compression pressure of 30 bars and compression dwell time of 7 seconds.
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