A New Method of Efficient Line Contact Machining Surface

A new machining method of line contact is proposed for raising the efficiency in processing surface. Through selecting and assigning to degree of freedom, a new motion mechanism is proposed, which makes that peripheral edges of a cutter are in line contact with the theoretical profile of a work-piece. It will be able to machine surface efficiently in line contact. The mechanism motion is analyzed by the method of Denarit-Hartenbarg. Then, the coordinate transformation matrix and the position and gesture matrix are obtained, and position and gesture between bar and tool could be gained. Achievability of this method is proven by simulating in the Pro/E software. The G code is designed for machining developable ruled surface. A whole surface and curve can be processed in a numerical code by analyzing the cutter path. Thus, based on the method above, the cutter path is shorten, and the efficiency of machining surface is increased.