Wire EDM Process of AISI 431 Martensitic Stainless Steel: A Machinability Investigation

Abstract

The wire EDM process for AISI 431 martensitic stainless steel involves meticulously investigating its machinability. This study explores the intricate details of the machining process, considering factors such as material characteristics and cutting conditions. A steep increase of 51.59% in pulse on time was observed following enhanced material removal. As servo voltage and pulse-off decreased, surface roughness decreased by 24.31%. The aim was to increase the efficiency and precision of the wire EDM process for this AISI 431 stainless steel grade. The investigation shows valuable insights for manufacturing applications, especially in surgical instruments, orthopedic implants, and medical casing. The findings will enhance the performance and quality of AISI 431 martensitic stainless steel components.

Keywords

• SS 431
• surface roughness
• hardness
• surface morphology
• WEDM