Author(s)

Hongbin Lv, Yuefeng Wu, Jifa Cheng, Wengang Fan

Corresponding Author

Wengang Fan

Abstract

The static contact behavior of CNC abrasive belt grinding on a blade surface was determined through the finite element method. The characteristics of the blade surface were extracted, and the static contact finite element simulation models of real blade surface, parametric surface, and special surface were established. By analyzing changes in contact stress, contact area, shape of contact area, displacement of the contact surface, and other parameters, the relationship between contact status and workpiece surface curvature on CNC abrasive belt grinding of blade surface was revealed. The best processing quality was obtained when the curvature direction of the contact wheel matches the minimum principal curvature of the target point, and the stress along each direction was positively correlated with the curvature in that direction. This result provides a basis for the design and posture control of contact wheel on the CNC abrasive belt grinding of a blade surface.

Keywords

Belt grinding, blade surface, contact, finite element simulation