Cutter-workpiece engagement determination for general milling using triangle mesh modeling

Computing Cutter Engagement Values in Milling Tessellated Free-Form Surfaces

High speed milling (HSM) has great potential use in die/mold cutting, but traditional machining plans do exploit HSM capabilities effectively. An important consideration for in HSM is to limit cutting force variations, and one way to do so is to reduce Cutter-Workpiece engagement (CWE) variations. CWE is measured as the area of the tool instantaneously engaged with the part. Estimating CWE as a...

Study of the effective cutter radius for end milling of free-form surfaces using a torus milling cutter

Geometric algorithms for computing cutter engagement functions in 2.5D milling operations

Geometric algorithms for computing cutter engagement functions in 2.5D milling operations. ABSTRACT Cutter engagement is a measure that describes what portion of the cutter is involved in machining at a given instant of time. During profile milling of complex geometries, cutter engagement varies significantly along the cutter path. Cutter engagement information helps in determining the efficien...

Modeling and Analysis for Five-Axis High Speed Milling Process Based on Cutter Optimal Kinematics Performance

The overall goal of the research is the integration of geometric and mechanistic models for cutting process simulation and feedrate optimization. Five-axis milling methods are used in industries such as aerospace, automotive and mold for free-form surface machining. In these process, surface quality and material removal rate are of very important. Conservative cutting parameters have been mostl...

Triangular mesh offset for generalized cutter

In 3-axis NC (Numerical Control) machining, various cutters are used and the offset compensation for these cutters is important for a gouge free tool path generation. This paper introduces triangular mesh offset method for a generalized cutter defined based on the APT (Automatically Programmed Tools) definition or parametric curve. An offset vector is computed according to the geometry of a cut...