Lead Crowning and Anti-Twist for Tooth Flank of a Heat Treated Helical Gear on Internal CNC Honing Machine

Abstract

The internal gear honing is more popular than the external gear honing by its advantages such as higher contact surface and easier correct profile errors. It is usually applied for modifying the gear surface to compensate for the distortions after heat treatment process. However, the lead crowning and anti-twist tooth flank of a helical gear on internal CNC gear honing has not studied yet. Therefore, a novel method for lead crowning tooth flank of work gear surfaces is proposed by using a linear swivel angle function of the honing wheel and a variable pressure angle (VPA) honing wheel is also applied for anti-twist of the crowned tooth flank in honing process.

Research on the mechanisms of internal gear honing by use of cone-shape honing wheel with tool tilt angle

“…Han [4] developed a mathematical model for lead and profile crowning modification of work gear by setting the movement of the honing wheel as two forth-order polynomial functions. Wu [5][6][7][8] presented methods for topology modification of helical gears using internal-meshing gear honing. Parallel, many researchers investigate the contact conditions, cutting force vibration, and teeth elastic deformation of honing wheel in the honing process, aiming at improving the honing performance.…”