Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 22, 2016 - October 23, 2016
Helical milling has recently been applied to machining of large diameter holes in the airplane manufacturing. In the helical milling, a rotating end mill is fed helically to finish the holes in a rotation radius around the center of the hole at a revolution rate. The paper presents a model to simulate the cutting force in the helical milling. The chip flow model in milling is modeled with piling up the orthogonal cuttings in the planes containing the cutting velocities and the chip flow velocities, where the chip flow direction is determined to minimize the cutting energy. The cutting force model is validated in the peripheral cutting tests. Then, the cutting force is simulated in a helical milling. The cutting force changes with revolution of the end mill in the penetration, the steady and the exit processes.
