文档介绍：Abstract —Transmission error in gearing system is a critical index for product quality. Gears with appropriate tooth modification can always behave well in transmission error, . the double crowned gears. Nevertheless, to manufacture a gear with double crowning C gear shaving machine indeed costly. This paper investigated the manufacture of double crowned gears by traditional ge ar shaving machine. Taguchi Method was applied to find critical parameters in the shaving process and the transmission error had also been improved through the process of robust design. Index Terms —Gear shaving, Robust Design, Taguchi method, Transmission error. I. I NTRODUCTION With the increasing requirements of transmission systems for high rotation speed pact size, the precision of gears, which are the most ponents in transmission systems, is also highly required. Gear shaving is one of the most efficient and economical process for gear finishing after the rough cuttings of hobbing or shaping. The shaving process has the ability to correct errors in index, helix angle, tooth profile, a nd eccentricity by removing fine hair-like chips from gear t ooth surfaces [1]. The basic meshing condition of 3D crossed-axis helical gear pair was derived by Litvin [2], which has been widely adopted as the fundamental assumption for simulation of gear shaving. Gear tooth crowning can