Abstract
In the plunge grinding process. there are many non-linear characteristic parameters. The effects of the parameters which include cutting stiffness, and contact stiffness are so complicated that the grinding conditions are not sufficiently clear. Therefore the usual study assumes that the grinding process is a linear system. This paper studies the quantitative relation between normal grinding force and its parameters to describe the form of an exponential function both theoretically and experimentally. As a result of the investigation, the in-feed process of the grinding is determined by the maximum normal grinding force, cutting stiffness, and contact stiffness. The cutting stiffness and the contact stiffness can be expressed in the form of exponential functions of real cutting depth or normal grinding force. These exponents of the functions are constant for the grinding conditions. But, contact stiffness is changed by the dressing speed. A close agreement between theoretical variations and experimental results was obtained.
