Studies on Intermittent Facing of Metal Matrix Composites Using Cryogenic Treated Carbide Inserts

Abstract

Composites made of light materials are of great interest and this material replaces almost all the monolithic materials while posing challenges for machining. While machining these composites, the failure of cutting tool is attributed for the presence of hard particles in the work materials. Further, cryogenic treated cutting tools are recognized for machining of monolithic materials. Thus, present paper presents the results on tool life of cryogenically treated and untreated K10 grade carbide inserts while machining Al6061-fly ash composites containing 0-15 percent reinforcement in steps of 5. Intermittent facing operation were carried out with the cutting speed of 220m/min, 314m/min & 446m/min, by using the feed rate of 0.06mm/revolution, 0.12mm/revolution, 0.24mm/revolution with a depth of cut of 2mm following dry machining method. Parametric studies have been carried out as per ISO3685 standards. The results reveal that cryogenically treated tungsten carbide inserts exhibits higher toughness & improved wear resistance when compared to untreated tungsten carbide inserts.

Experimental Evalutionof Tensile Strenght of Cryogenically Solidified Aluminium Based Metal Matrix Composites (MMC)

“…Hassan et al [14]; Rao et al [15] Strength is not only main standards but also it must be lightweight because in aircraft and automobile industry the material with high strength and low weight is required. Now a days metal based composite play the role of back bone in numbers of area like material advancement, solar energy conversion, medical field, and many others.…”

Prediction of 3D chip formation in the facing cutting with lathe machine using FEM

“…Most of published studies concerning on cylindrical turning despite there are some the other process cutting on a lathe i.e facing, threading, grooving, cutting off. Research on facing cutting (face turning) in experimental has done with by some researchers to investigate the performance of lathe machining process [1][2][3][4][5]. It starts from mild and alloyed steel material [1] then growing very fast on machining metal alloys [2] and most recently using of manufacture part material such Metal Matrix Composites [3][4] and Powder Metallurgy steels [5] The Johnson-Cook plasticity model is used to simulate the cutting process in lathe machining.…”

“…Many researchers have been simulated Orthogonal cutting with the use FEM simulation by using the Johnson-Cook plasticity model. Most of them were investigated tool wear, cutting force, temperature, heat transfer, deformation tool or workpiece material, chatter vibration during cutting process in lathe machining [1][2][3][4][5][6][7][8]. The HSS tool material was simulated where the model used in [6] for analysis bending occurring on material C1060 cutting process under constant conditions.…”