• Suresh Chougule
• Prof. ( Dr.) G. R. Naik
• Prof. R. S. Patil

This paper presents the effects of process parameters on surface roughness of hardened AISI420 stainless steel using cemented carbide inserts. Plan of experiment is done with the help of design of experiment. A total number of 9 experiments were conducted with an orthogonal array. In this research work, four control factors like spindle speed, feed rate, depth of cut and insert nose radius are used as a input process parameters and work piece material (AISI 420 stainless steel) is hardened to a hardness 30HRC were investigated at three different levels. The turning operations are done on Fanuc controlled Laxmi lathe machine. Surface roughnesses of the machined parts are checked by using Mitutoyo surface roughness tester SJ-210. For the statistical representation MINITAB 19 statistical software was used. The effect of each process parameter on surface roughness was analyzed using one way ANNOVA. The graph shows that, surface roughness value increases with increase in feed rate while increase in spindle speed, depth of cut and insert nose radius decreases the surface roughness.

Turning process, surface roughness, ANNOVA, carbide inserts, Minitab software.

"EFFECTS OF TURNING PARAMETERS ON SURFACE ROUGHNESS OF HARDENED AISI420 STAINLESS STEEL ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 8, page no.e460-e465, August-2021, Available :http://www.jetir.org/papers/JETIR2108545.pdf

"EFFECTS OF TURNING PARAMETERS ON SURFACE ROUGHNESS OF HARDENED AISI420 STAINLESS STEEL ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 8, page no. ppe460-e465, August-2021, Available at : http://www.jetir.org/papers/JETIR2108545.pdf