Title
Cutter-workpiece engagement determination for general milling using triangle mesh modeling.
Abstract
Cutter-workpiece engagement (CWE) is the instantaneous contact geometry between the cutter and the in-process workpiece during machining. It plays an important role in machining process simulation and directly affects the calculation of the predicted cutting forces and torques. The difficulty and challenge of CWE determination come from the complexity due to the changing geometry of in-process workpiece and the curved tool path of cutter movement, especially for multi-axis milling. This paper presents a new method to determine the CWE for general milling processes. To fulfill the requirement of generality, which means for any cutter type, any in-process workpiece shape, and any tool path even with self-intersections, all the associated geometries are to be modeled as triangle meshes. The involved triangle-to-triangle intersection calculations are carried out by an effective method in order to realize the multiple subtraction Boolean operations between the tool and the workpiece mesh models and to determine the CWE. The presented method has been validated by a series of case studies of increasing machining complexity to demonstrate its applicability to general milling processes.
Year
DOI
Venue
2016
10.1016/j.jcde.2015.12.001
Journal of Computational Design and Engineering
Keywords
Field
DocType
Cutter-workpiece engagement,Machining simulation,General milling,Cutting force,Triangle mesh
Polygon mesh,Torque,Contact geometry,Effective method,Boolean operations in computer-aided design,Machining,Engineering,Cutting force,Structural engineering,Triangle mesh
Journal
Volume
Issue
ISSN
3
2
2288-4300
Citations 
PageRank 
References 
1
0.36
16
Authors
2
Name
Order
Citations
PageRank
Xun Gong110.36
Hsi-yung Feng215215.49