Author : Aditya B. Rajopadhye and S. P. Wadkar

Air compressor plays a vital role in supplying compressed air to air circuits in any vehicle systems. Many a times such compressors are run on exhaust gas pressure which drives the turbine which drives the compressor. Crankshaft is integral part of compressor. Earlier the supplier was suffering from machining issue in the grinding of crankshaft of single cylinder reciprocationg compressor. It is not at all recommended that the rotating part having poor surface finish or having burn mmarks on it.This leads to fatigue failure. Hence to resolve the problem of burn marks and loading of grinding machine ,the process and design is modified. Balancing of crankshaft is also insured after the changes. In this paper the description of effective manufacturing of compressor crankshaft along with sequence of machining operation is given. The new modified design with its manufacturing and design advantages are given.

Keywords: Crankshaft machining, grinding of crankshaft, compressor crankshaft