Development of Algorithms to Represent Intermediate Layers for Machining Sculptured Surfaces

The objective aim of this research is to develop an algorithm for design and manufacture sculptured surfaces that are common in a wide variety of products such as dies, automobile, and aircrafts components. In the design stage Bezier technique has been used to represent the desire surface. In rough-...

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Main Authors: Tahseen A. Jawad, Tahseen F. Abbas
Format: Article
Language:English
Published: Unviversity of Technology- Iraq 2011-08-01
Series:Engineering and Technology Journal
Subjects:
Online Access:https://etj.uotechnology.edu.iq/article_32027_e0210c1a7e148c0d9b39c9859e1f9db1.pdf
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author Tahseen A. Jawad
Tahseen F. Abbas
author_facet Tahseen A. Jawad
Tahseen F. Abbas
author_sort Tahseen A. Jawad
collection DOAJ
description The objective aim of this research is to develop an algorithm for design and manufacture sculptured surfaces that are common in a wide variety of products such as dies, automobile, and aircrafts components. In the design stage Bezier technique has been used to represent the desire surface. In rough-machining stage, the number of intermediate layers depend on the geometry of the desired surface and on the maximum allowable depth of cut, an algorithm has been proposed to represent these layers, whereas another efficient algorithm has been proposed to represent the semifinished layer depends on the tangents and normal vectors along all the points of the desired surface to create the offset surface. The desired surface generated points using Bezier technique are used as cutter location points for the finish machining tool path. Flat end mill (φ 12mm) has been used for the intermediate stages machining (roughing), while (φ 12mm) ball end mill have been used for both semi-finish and finish machining. The developed algorithm have been tested by several designed sculptured surfaces, its proved good flexibility and efficiently in all of its stages, the results have been implemented for machining one of these surfaces [fifteen intermediate layers, semi-finished layer, and finished] using 3-axis vertical CNC machine. The proposed rough machining algorithm reduces the machining time as compared with contour tool path by 15% for case study two and reduces the NC file size 52% for case study three.
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spelling doaj.art-60efac1040d645eea98483ddfcf2cfca2024-02-04T17:42:18ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582011-08-0129112244225810.30684/etj.29.11.1332027Development of Algorithms to Represent Intermediate Layers for Machining Sculptured SurfacesTahseen A. JawadTahseen F. AbbasThe objective aim of this research is to develop an algorithm for design and manufacture sculptured surfaces that are common in a wide variety of products such as dies, automobile, and aircrafts components. In the design stage Bezier technique has been used to represent the desire surface. In rough-machining stage, the number of intermediate layers depend on the geometry of the desired surface and on the maximum allowable depth of cut, an algorithm has been proposed to represent these layers, whereas another efficient algorithm has been proposed to represent the semifinished layer depends on the tangents and normal vectors along all the points of the desired surface to create the offset surface. The desired surface generated points using Bezier technique are used as cutter location points for the finish machining tool path. Flat end mill (φ 12mm) has been used for the intermediate stages machining (roughing), while (φ 12mm) ball end mill have been used for both semi-finish and finish machining. The developed algorithm have been tested by several designed sculptured surfaces, its proved good flexibility and efficiently in all of its stages, the results have been implemented for machining one of these surfaces [fifteen intermediate layers, semi-finished layer, and finished] using 3-axis vertical CNC machine. The proposed rough machining algorithm reduces the machining time as compared with contour tool path by 15% for case study two and reduces the NC file size 52% for case study three.https://etj.uotechnology.edu.iq/article_32027_e0210c1a7e148c0d9b39c9859e1f9db1.pdfsculptured surfacesoffset surfacesbezier techniquesintermediate layersrough machiningsemi finishing and finishing
spellingShingle Tahseen A. Jawad
Tahseen F. Abbas
Development of Algorithms to Represent Intermediate Layers for Machining Sculptured Surfaces
Engineering and Technology Journal
sculptured surfaces
offset surfaces
bezier techniques
intermediate layers
rough machining
semi finishing and finishing
title Development of Algorithms to Represent Intermediate Layers for Machining Sculptured Surfaces
title_full Development of Algorithms to Represent Intermediate Layers for Machining Sculptured Surfaces
title_fullStr Development of Algorithms to Represent Intermediate Layers for Machining Sculptured Surfaces
title_full_unstemmed Development of Algorithms to Represent Intermediate Layers for Machining Sculptured Surfaces
title_short Development of Algorithms to Represent Intermediate Layers for Machining Sculptured Surfaces
title_sort development of algorithms to represent intermediate layers for machining sculptured surfaces
topic sculptured surfaces
offset surfaces
bezier techniques
intermediate layers
rough machining
semi finishing and finishing
url https://etj.uotechnology.edu.iq/article_32027_e0210c1a7e148c0d9b39c9859e1f9db1.pdf
work_keys_str_mv AT tahseenajawad developmentofalgorithmstorepresentintermediatelayersformachiningsculpturedsurfaces
AT tahseenfabbas developmentofalgorithmstorepresentintermediatelayersformachiningsculpturedsurfaces