Paper Details

Excellent physical, mechanical and chemical properties at high temperatures, toughness and ductility, highresistance to corrosion, resistance to thermal distortion are making super alloys favorable in the industries. They are onhigh demand in the chemical, marine, and aerospace industries. Improvements are suggested in the area of machining ofdifficult to cut materials having poor machinability due to low thermal conductivity, to maintain high strength at elevatedtemperature and chemical reaction. The most affecting factors which governs the machinability of Super alloys aremachined surface of work material and tool life. A Proper selection of cutting tool materials, cutting parameters andconditions, as well as the functional behavior of machined specimen gives efficient machining of super alloys. This paperpresents an overview of advancement in the machining techniques which can improve the productivity along with costreduction without compromising dimensional and geometrical accuracy, machined surface quality in terms of roughness,finish, subsurface quality and hardness. Various cutting parameters, cutting environment and tool geometry on differentfeatures of machined surface quality has been presented. These includes surface roughness, surface defects in the form ofcavities, metal debris, smeared material, feed marks etc., metallurgical and microstructural aspects.

Dipeshkumar Bansilal Trivedi, “Machining of difficult-to-cut Super alloys: A Review”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 4, Issue 10, pp. 120-125, October 2017.