Multi‑Response Optimization During Dry Turning of Bio‑implant Steel (AISI 316L) Using Coated Carbide Inserts

摘要

To comply with the remarkable demand of bio-implants at a reasonable cost, selection of appropriate material, efficient manufacturing processes and associated parameters play a vital role. Particularly, benign of green manufacturing is gaining huge attention in bio-implants manufacturing to comply with environmental concerns. The present work is an effort to exhibit the viability of green manufacturing during dry turning of bio-implant steel (AISI 316L) using coated carbide cutting tool. Cutting speed, feed rate, depth of cut and tool nose radius are considered as input variables, whereas main cutting force, tool flank wear and centreline mean surface roughness are taken as output responses. Range of the input variables has been decided on the bases of pilot studies. Using the design of experiment strategy, experimentation has been carried out on a computerized numerically controlled lathe machine in a dry environment. Significant input variables affecting the responses have been identified through the analysis of variance and response surface methodology. Further, mathematical regression models have also been derived. Desirability factor-based multi-response optimization analysis has been implemented and found the optimum main cutting force: 113.6 N, flank wear: 0.14 mm and mean surface roughness: 1.27 μm, at cutting speed: 125 m/min, feed: 0.05 mm/rev., depth of cut: 0.75 mm and tool nose radius: 0.4 mm.