Grinding Process of Aramid Fiber Reinforced Rubber (1st Report): —Grinding Characteristics of Matrix Rubber—

In this report grinding characteristics of chloroprene rubber (CR, matrix material) are experimentally investigated in order to obtain fundamental information as to grinding mechanism of aramid fiber reinforced rubber. Main conclusions obtained in this report are as follows: (1) Regular pattern just as file is generated on ground surface of CR, and generative mechanism of the pattern is classified into two distinct types. (2)Tangential force is larger than normal one because of severe friction between bonding material on diamond wheel surface and CR which make much elastic recovery before and after a contact of cutting edge. (3)Height and spacing of the pattern decrease with an increase of mean contact stiffness between surface of grinding wheel and CR by varying setting depth of cut, speed ratio and radius ratio.