WIT Press


Effect Of The Physical And Mechanical Properties Of Composites On Their Grinding Characteristics

Price

Free (open access)

Paper DOI

10.2495/HPSM080161

Volume

97

Pages

7

Page Range

149 - 155

Published

2008

Size

289 kb

Author(s)

S. D. El Wakil & K. Srinagesh

Abstract

Experiments were carried out on different fiber-reinforced polymeric composites in order to gain a deeper understanding of the significance and effect of each of the physical and mechanical properties of the various composites on the quality of the machined surface during cylindrical grinding. For such a comparison to be valid the process parameters such as feed rate, depth of cut, and R.P.M. were kept constant in each case. The results enabled understanding of the phenomena of heat generation and heat dissipation during the grinding process. They would also serve as an aid in selecting the appropriate type of composite for a specific application. Keywords: fiber-reinforced polymeric composites, grinding, properties of composites. 1 Introduction While fiber-reinforced polymeric composites are currently very popular in fabricating boats, skiing gear, automobile panels, small rockets, and aircrafts, their use as structural machine components has been quite limited. This is mainly due to the difficulties encountered in achieving adequate levels of dimensional accuracy and surface finish when those composites are subjected to precision machining operations, e.g., grinding. Problems such as degradation, thermal damage of the ground surface, excessive noise and vibrations, and clogging of the grinding wheel are frequently encountered. This is evidently caused by the nature and the physical and mechanical properties of this class of material, which are different from those of metals.

Keywords

fiber-reinforced polymeric composites, grinding, properties of composites.