Abstract
The effect of the shank form error of tools on the chucking accuracy was examined for various milling Furthermore the requirement of the shank of tools was also considered for effective use of the chucks. By the experiments, following results were obtained. (1) The chucking accuracy of the shrink-fit and the hydraulic type chuck are better than the roll-lock and sleeve-lock type chuck regardless of the shank form error of tools. (2) The shank form error of tools affects greatly the chucking accuracy of the shrink-fit and hydraulic type chuck. (3) The shank form error of tools hardly affects the chucking accuracy of the roll-lock and sleeve-lock type chuck. (4) In order to make the best use of the shrink-fit and hydraulic type chuck, it is necessary to use the tool whose shank is good cylindricity and has proper interference for clamping.
