Effect Of Plating And Temperature On Torque Load Bearing Capacity Of Shrink Fitted Assemblies

摘要

Product design is mostly centered around design of contact pairs. Among contact pairs interference fits pair is widely used. Design of interference fits involves not only dimensional interference but also condition of interface between mating surface. Factors such as texture of interface, hardness of interface material and also physical properties contacting material influence the functional characteristics of interference shrink fitted assemblies. This paper deals with the effect of plating and heat treatment on the strength of the interference fitted assemblies under torque load. The effect of grain size is also assessed. It was observed that there is a considerable improvement in the strength of the interference fitted assemblies when an electroplated layer was introduced between the mating parts and by heating the assemblies. An experimental investigation of the above factors on their assembly strength under torque loading is discussed.