STUDY OF AN ALTERNATE MANUFACTURING PROCESS OF PISTON PIN

Hemant V Chavan, Milind S.Yadav

Abstract: In automobile industry development in technology has been increases significantly and so as the performance of an engine. In reciprocating internal combustion engine major parts having sliding motion among their parts and failure of any part in dynamic stage will cause major impact on engine such as failure of an engine. Piston pin play a vital role in the reciprocating internal combustion engine. Failure of piston pin will result in failure of engine. It has been investigated that fatigue failureis one of the major reason of failure of a piston pin. Piston pin are subjected to multiaxial stresses due to which crack initiation and propagation from the surface decreases intensely the fatigue strength of surface and fatigue fracture occurredso every effort has to be made towards improvement in sliding properties of piston pin which will reduce wear resistance of metal surface and ultimately increases fatigue life of piston pin without sacrificing any of the major property requirements of the substrate material. Literature shows that phosphating is one of the surface coating method which will improve friction properties and wear properties thus increases fatigue life. In this work, an effort is to suggest phosphate surface coating on a piston pin as an alternative to conventional surface coating. The investigation effect of phosphating surface coating on piston pin of different material is studied by using design of experiments.

Keywords: Design of Experiment, Fatigue Strength, Piston pin, Phosphating

DOI: https://doi.org/10.15623/ijret.2015.0411057