Modeling of Cutting Forces in End Milling Operations

Wen-Hsiang Lai

doi:10.6180/jase.2000.3.1.02

Modeling of Cutting Forces in End Milling Operations

Mechanical Engineering

Wen-Hsiang Lai This email address is being protected from spambots. You need JavaScript enabled to view it.¹

¹Department of Mechanical Engineering University of Kansas Lawrence, KS 66045

Received: October 8, 1999
Accepted: April 21, 2000
Publication Date: April 21, 2000

Download Citation: ||https://doi.org/10.6180/jase.2000.3.1.02

ABSTRACT

According to previous research of dynamic end milling models, the instantaneous dynamic radii on every cutting position affects the cutting forces directly since the simulated forces are proportional to the chip thickness, and the chip thickness is a function of dynamic radii and feedrate. With the concept of flute engagement introduced, it is important to discuss it with respect to radial and axial depths of cut because the length of the engaged flutes is affected by factors in the axial feed and rotational directions. Radial and axial depths of cut affect the “contact area”, which is the area that a cutter contacts with the workpiece. When radial and axial depths of cut increase, the cutting forces also increase since the engaged flute lengths are increased. Therefore, in order to have a clearer idea of the milling forces, the influences of dynamic radii, cutting feedrate, and radial and axial depths of cut are discussed in this paper.

Keywords: simulated forces, milling forces, dynamic radii, cutting feedrate, flute engagement, radial and axial depths of cut, rake angle

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