Manufacturing Technology Today

Pralay Pal ¹, Raj Ballav ², Anjani Kumar ²

Affiliations
1 Tata Technologies, MSD Building, Telco Premises, Jamshedpur-831010, Jharkhand, IN
2 Department of Production Engineering and Management, Regional Institute of Technology, Jamshedpur-831014, Jharkhand, IN

Abstract

Use of point cloud data for prototyping in Reverse Engineering (RE) is increasingly becoming popular among manufacturing communities round the globe specially, in automobile, aerospace and heavy engineering sectors where, speedy and accurate shape reproduction is the key success factor for survival in the competitive global market. This paper proposes some strategy of refining raw & noisy point cloud data, obtained from mock-up or clay-models to be used for solid or surface modeling in CAD. Discussion is limited to data acquisition methods, data viewing and validation, gap filling and homogenizing and cloud offsetting. Sample test results are presented in support of the discussed technique.

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Pralay Pal ¹, A. M. Tigga ², Anjali Kumar ²

Affiliations
1 Tata Technologies, MSD Building, Telco Premises, Jamshedpur, Jharkhand - 831 010, IN
2 Department of Production Engineering and Management, Regional Institute of Technology, Jamshedpur, Jharkhand - 831 014, IN

Abstract

Commercially available CAD/CAM/CAE software are the backbone of Modern manufacturing facilities across industries all over the world. A good CAD software should exhibit state-of-the-art modeling facilities and techniques like, ‘feature based modeling technique' and ‘concurrent engineering’. A feature based modeling technique not only enhances modeling flexibility but also provides excellent support for manufacturing. A concurrent engineering capability of a solid modeler enables a group of CAD engineers to work simultaneously in a design project sharing each other’s CAD data and information across a design platform. This paper discusses such modeling techniques available to popular commercially available CAD software like, SDRC/EDS I-DEAS Master Series and PTC Pro/Engineer. Elementary concepts like, ‘feature tree’, ‘feature suppression’, ‘feature update’ and ‘parameterization’ are discussed. Similarly, concepts like, ‘library and catalog of parts’, ‘design data management’, ‘model instancing’, ‘assembling’ etc. in the area of concurrent engineering are also discussed with examples.

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