Track: Manufacturing

Abstract

In recent decades the high demands of Dual-Phase (DP) brass find wide applications in electrical, electronic and other appliance industries. Therefore, study of material characterisation and springback behaviour are essential in forming of sheet metal components. In the present work, an isothermal uniaxial tensile test was performed to evaluate the accurate mechanical properties, which are essential pre-requisite for optimization of process parameters to decrease and minimize spring-back for any sheet-metal-forming operations. The V-bending test was conducted at specified test parameters temperature (773 K, 873 K, and 973 K), punch velocity (1 mm/min, 5 mm/min, and 10 mm/min), holding-time (30 s, 60 s, and 90 s) and orientation (0⁰, 45⁰, and 90⁰) concerning rolling direction. Taguchi approach was utilized to optimize the test parameters such as temperature, punch velocity, holding-time, and orientation. The optimal set of parameters obtained were Temperature (973 K), Punch Velocity (1 mm/min), Holding-Time (90 sec) & orientation (90°) and using these optimal set of parameters a confirmation test has been conducted and it was reported that the spring-back was decreased significantly in V-bending process for dual phase (DP) brass sheet. The main objective of the study is to investigate the springback behaviour in V-bending process on brass sheets to understand the formability and to optimise the processes parameter to minimize the springback effect using Taguchi Technique to meet the needs of the sheet metal forming processes.