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장정환(Jeong-Hwan Jang),김해지(Hae-Ji Kim),김남경(Nam-Kyeong Kim),김준성(Jun-Seong Kim),류성기(SungKi Lyu) 한국기계가공학회 2008 한국기계가공학회 춘추계학술대회 논문집 Vol.2008 No.-
This study makes clear that tool loading force and number of finish roll forming are very important factors to decide involute tooth profile error. Tooth profile is decided in the beginning of roll forming and δ max mainly increases if the number of roll forming process is increased. Gear class is improved by one or two class after roll forming if the gear has convex type error and pressure angle error in KS 1~4 class. If the gear have concave type error and pressure angle error, gear class is not improved in theory, but improved a little in practice. In the finishing roll forming, it inevitably yields both the concaving of tooth profile and plastic deflection of addendum of teeth. Experiments show that the concaving and the plastic deflection are successfully reduced. The accuracy of tooth profile reaches to KS 0 class.