Open Access Article

Title: Development of precision analysis method of tooth profile in gear skiving process with shape projection of removal area

Authors: Hiroki Yonezawa; Jun'ichi Kaneko; Takeyuki Abe; Naruhiro Irino; Yuta Shinba; Yasuhiro Imabeppu

Addresses: Graduate School of Science and Engineering, Saitama University, Shimo-Okubo 255, Sakura-ku, Saitama-shi, Saitama 338-8570, Japan ' Graduate School of Science and Engineering, Saitama University, Shimo-Okubo 255, Sakura-ku, Saitama-shi, Saitama 338-8570, Japan ' Graduate School of Science and Engineering, Saitama University, Shimo-Okubo 255, Sakura-ku, Saitama-shi, Saitama 338-8570, Japan ' DMG MORI Co, Ltd., 201 Midai, Iga City, Mie 519-1414, Japan ' DMG MORI Co, Ltd., 201 Midai, Iga City, Mie 519-1414, Japan ' DMG MORI Co, Ltd., 201 Midai, Iga City, Mie 519-1414, Japan

Abstract: Gear skiving process is gear machining method in which skiving cutter machines a workpiece continuously while rotating synchronously with shaft angle. Gear skiving process is an efficient way to machine internal gears, it has been difficult with conventional machining methods. In the previous studies of gear skiving, a method to derive workpiece removal area from relative motion trajectory of the tool edge surface viewed from workpiece coordinate system is widely used in predicting tooth flank geometry. In this study, a new calculation method of shape projection of removal area viewed from workpiece tooth lead direction is proposed. The proposed method can realise analysis to estimate spur and helical tooth profile. For verification, we also developed tooth profile analysis program using Z-map model, which is same as above method to derive removal area viewed from workpiece coordinate system in previous studies. And we compared the result of calculating shape projection and the result of using Z-map model. As a result, the shape projection of removal area is close to the tooth profile of Z-map model also the tooth profile machined under same conditions as in the analysis. In conclusion, high-precision analysis of tooth flank geometry was achieved.

Keywords: gear skiving; tooth profile; analysis; helical gear; Z-map.

DOI: 10.1504/IJAT.2024.144424

International Journal of Abrasive Technology, 2024 Vol.12 No.5, pp.1 - 14

Published online: 12 Feb 2025 *