Study on the Generating Process of Machined Surface

抄録

Metal cutting process was investigated from the view point of generation of new surface and hence in association with machined surface characteristics. Discussions were made on the ploughing force on the extreme cutting edge, the depth of the distorted surface layer and the work absorbed in its generation in order to reveal the relation between generating process of ploughing force and surface layer. Following conclusions are drawn from the present study. 1. A part of the ploughing force consists of the force exerted in generation of distorted surface layer. 2. The work done by cutting edge is from 4 to 7 per cent of the work of all cutting operation under normal cutting conditions. 3. The depth of distorted surface layer in actual cutting is nearly equal to that of theoretical plastic zone which is calculated on the assumption that the ploughing force acts as a concentrated force on the semi-infinite surface of work-piece.