Abstract
In this study, we focused on screw cutting with a thread mill tool based on helical interpolation motion and proposed a novel monitoring method to achieve a high accuracy of screw cutting with a wireless holder system. In the present report, we investigated the influence of pilot hole diameter on the accuracy of machining the screw for three kinds of steel materials, which were JIS S50C (200 HV2 hardness), JIS SKD61 (400 HV2 hardness) and JIS SKD61 (600 HV2 hardness) steels., based on measured cutting force from the wireless holder system. As a result, the proposed monitoring method is effective to estimate the processes and to improve the accuracy of machining screws from various work materials using helical interpolation motion of a thread mill tool.
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