Determination of optimum tool geometry of a cemented carbide tool for cutting a stainless steel material

Abstract

In the age of market economy it 1S essential that the production cost of any part has to be minimum to make competitive in the global market. From this point of V1ew tool geometry plays an important role in manufacturing economy. Tool geometry has influence on wear .rate and, therefore, on tool 1 ife, also on product ion costs. The knowledge of se1ect ing appropr iate too 1 geometry and other cutting conditions for various application 1S almost absent in the relevant industries of our country at different cutting conditions. The cutting speed range was selected to cover the critical cutting speed at which built up edge vanishes from the tool surface during cutting. Tool wear is also found to have minimum value near the critical cutting speed.Experiment were conducted with various parameters of the tool geometry with a view to determining their optimum values.The optimum values of these angles were determined from the condition of minimum intensity of tool wear criterion. It has been established that intensity of tool were can be reduced quite appreciably ( 3 to 4 times) by proper selection of tool geometry. In the present work the tool geometry parameters were varied one by one, so there remains a scope for further works by varying two or more paraeters together. The present work attempts to present a method of selecting optimum tool geometry for turning stainless steel with cemented carbide cutting too