An Experimental Study on Formability Comparison of Aluminium Alloy 7075 & Aluminium Alloy 2024 by Incremental Sheet Forming Process

Incremental sheet metal forming (ISF) is a new innovative and feasible solution for rapid prototyping and the manufacturing of small batch sheet parts. The requiring equipment’s for SPIF process includes a hemispherical forming tool and fixture to hold a forming sheet. The forming tool is moved along a predefined tool path and final shape of product is formed using numerical controlled technology. SPIF process is performed by using aluminum alloy sheet. Aluminum sheet has important industrial applications with a high ratio of weight/strength. This is one of the most important factors in aluminum alloy selection. In the present study, experiments are conducted to analyses the formability comparison of AA7075 and AA2024. In these work comparisons is done between aluminum alloy 2024 & 7075 to determine which one has the better formability and surface roughness. The forming forces are measured using force sensor which is connected with the computer numerical control machine. From this investigation, it is found that better formability is found in AA7075 as compared to AA2024. An experimental result shows that surface roughness of AA7075 is better as compared to AA2024. The limits of the proposed model are also identified and the potential of future improvements are also suggested to compare other aluminum alloys.