Abstract
This paper describes the theoretical and experimental investigations for the relationship between the quantity of diffusion and the cutting temperature for clarifying the cooling effect on crater wear. The main results obtained are as follows:
(1) The diffusion of Fe contained in work material into Co phase of tool material is found by experiment. The effect of cutting temperature on diffusion of Fe appears clearly.
(2) The value of theoretical crater wear agrees approximately with that of actual crater wear. The relationship between crater wear K and temperature T can be expressed by the following equation.
log K=-3.5/T × 103+B;where, B theoretical value ; 5. 0 experimental value; 4. 7
Then the crater wear due to the cooling effect can be calculated quantitatively on the basis of a reduction of cutting temperature T.
