Analysis on surface roughness of Al-Mg alloy in single point incremental forming (SPIF)

Abstract

The present transforming manufacturing processes always find a suitable technique which is capable to produce a quality product in a shorter period. Single point incremental forming (SPIF) is an innovative technique in which shaping the thin sheet of metal to a simple tool rather than a dedicated die but the process is limited to customized parts, rapid prototyping or even for low batch production. With the research interest, SPIF is conducted on Al-Mg alloy for finding the influences of process variables on the average surface roughness. The statistical analysis is done by using Taguhci's methodology. The result shows that the step depth is the only input parameter which is significantly affects the surface roughness at these levels of process variables. The minimum average surface roughness (51. 844ânm) is achieved in the experiment no. 8 with the process parameters set as, low step down size as 0.1mm, higher feed rate as 100âmm/min, high spindle speed 2000 and wall angle as 45°.