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Research Papers

# Development of a Virtual Environment for Surface Topomorphy and Roughness Determination in Milling Operations

[+] Author and Article Information
Bilalis Nikolaos

Department of Production and Engineering and Management, Technical University of Crete, Chania, Crete 73100, Greecebilalis@hlk.forthnet.gr

Petousis Markos

Department of Production and Engineering and Management, Technical University of Crete, Chania, Crete 73100, Greecemarkospetousis@yahoo.gr

J. Comput. Inf. Sci. Eng 8(2), 021002 (Apr 16, 2008) (7 pages) doi:10.1115/1.2904932 History: Received September 14, 2006; Revised September 17, 2007; Published April 16, 2008

## Abstract

Surface roughness is a key parameter for determining the quality of machined parts. A graphical model for the calculation of quantitative data affecting surface roughness of machined surfaces was developed. The model allows the determination of the accurate machined surface in cloud of points form retrieved from the visualization system $Z$ buffer in a three dimensional graphics environment developed in OPENGL . Critical quantitative parameters for surface roughness, such as $RaRyRtiRz$, and mean line, are determined from this topomorphy. The results together with the operations are visualized in a virtual machine shop environment developed in a commercial development toolkit.

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## Figures

Figure 1

Structure of the machining process simulation system

Figure 2

The developed machining process simulation model

Figure 3

Virtual environment for machining process simulation

Figure 4

Sweep surface of a differentiated cutting edge segment

Figure 5

For specific ball end cutter positions, two adjacent positions of the differentiated cutting edge segments could produce the shape shown

Figure 8

(a) The constructed geometry is the part of the cutter sweep surface inside workpiece limits. (b) Clipping algorithm for the cutter sweep surface.

Figure 10

Measurement area determination with the use of the handler

Figure 11

Machining report example

Figure 9

Virtual environment quantitative data table

Figure 7

Cutting edge sweep surface along the cutter path

Figure 6

Sweep surface of a differentiated cutting edge segment for two adjacent cutter path positions

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