EXPLORING THE INFLUENCE OF VARIOUS COOLING AND LUBRICATION CONDITIONS ON CUTTING PERFORMANCE AND SURFACE INTEGRITY IN END FACE MILLING OF SUPERALLOY INCONEL 718

Abstract

characterize the nickel-based superalloy 
Inconel 718. It is a challenging material to 
create, though, because it generates a lot of 
heat during production. Its cutting 
effectiveness and surface integrity may be 
greatly improved by following the proper 
cooling and lubrication (CL) protocols. 
This article contrasts the four methods of 
cutting Inconel 718: cryogenic minimal 
quantity lubrication cutting (CMQLC), 
cryogenic cutting (CC), dry cutting (DC), 
and flood cutting (FC). Among the factors 
that are measured are cutting forces, 
temperature, tool wear, chip size, 
roughness angle (Ra), microstructure, and 
residual stress (RS). The results show that 
processing is improved by adding CL. The 
average temperature produced by CMQLC 
is 55.47% lower than DC. With a 25% 
reduction in the tool chipping area and a 
32.05% drop in surface Ra, CMQLC is the 
least effective of the four procedures. In 
terms of RS, the subsurface influence 
depth increased by 10.2%, the TRS by 
7.9%, and the MCRS by 3.9%. 
Additionally, achieving a more desired RS 
state 
may result from machining 
conditions with a high mechanical thermal 
ratio. 
The CMQLC exhibits light 
environmental   
contamination,   
good 
workpiece surface integrity, and favorable 
cutting performance. 
Cutting performance, surface integrity, 
cryogenic minimum quantity lubrication 
(CMQL), cooling and lubrication (CL), 
and Inconel 718 are among the pertinent 
terms.