Title: An independent CAPP system for prismatic parts

Authors: Awais Ahmad Khan; Emad Abouel Nasr; Abdulrahman Al-Ahmari

Addresses: Industrial Engineering Department, College of Engineering, King Saud University, Riyadh 12372, Saudi Arabia; Advance Manufacturing Institute, College of Engineering, King Saud University, Riyadh 12372, Saudi Arabia ' Industrial Engineering Department, College of Engineering, King Saud University, Riyadh 12372, Saudi Arabia; Mechanical Engineering Department, Faculty of Engineering, Helwan University, Cairo, Egypt ' Industrial Engineering Department, College of Engineering, King Saud University, Riyadh 12372, Saudi Arabia; Advance Manufacturing Institute, College of Engineering, King Saud University, Riyadh 12372, Saudi Arabia

Abstract: Computer Aided Process Planning (CAPP) provides a link between design and manufacturing in a Computer-Integrated Manufacturing (CIM) environment. The Automatic Feature Recognition (AFR) plays a significant role in the contribution of Computer Aided Design and Computer Aided Manufacturing (CAD/CAM) integration. In this paper, an object oriented approach is applied to prepare the part geometric database from a neutral file (STEP AP 203) and translates this information to manufacturing knowledge. The algorithms and rules are then formulated to extract, group and recognise the form feature and their dimensions. The feature based CAPP system is then produced along with the setup plan using machining database and an algorithm based on feature location. The proposed methodology is tested by using a case study.

Keywords: feature recognition; CAPP; CADCAM integration; STEP AP 203; computer-aided process planning; prismatic parts; object-oriented approach.

DOI: 10.1504/IJRAPIDM.2015.073556

International Journal of Rapid Manufacturing, 2015 Vol.5 No.2, pp.129 - 144

Received: 24 Nov 2014
Accepted: 03 Dec 2014
Published online: 12 Dec 2015 *

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