A Case Study in Computer-Aided Process Planning and System Design for Automotive Powertrain Machining

Author(s):  
Wencai Wang ◽  
Derek Yip-Hoi ◽  
Zhengdong Huang

Process planning and system design for automotive powertrain machining represent a large investment in engineering upon which decisions are made for equipment acquisitions that typically falls in the range of hundreds of millions of dollars. The use of Computer-Aided Process Planning (CAPP) and system design (CASD) applications in the early stages of a new engine program can greatly increase the reliability and quality of the solutions upon which these decisions are made. They can also reduce the engineering time and the time to evaluate proposals from system integrators. This leads to shorter product launch windows giving manufacturers a competitive edge. This paper reports upon a case study conducted to evaluate the state of the art in of CAPP and CASD technology based on a typical configuration of commercial and evolving software applications. The results show maturity of the technology in most of the core technologies. Challenges exist in integrating these solutions into a manufacturer’s working environment.

2011 ◽  
Vol 5 (5) ◽  
pp. 700-707 ◽  
Author(s):  
Eiji Morinaga ◽  
◽  
Masayuki Yamada ◽  
Hidefumi Wakamatsu ◽  
Eiji Arai ◽  
...  

This paper concerns the development of flexible Computer-Aided Process Planning (CAPP). In the agile manufacturing which has been strongly promoted, manufacturing situation changes dynamically. Therefore, the CAPP method which can be adaptable to these dynamic changes is required. From this point of view, there has been the method which is mainly composed of the following three steps – (i) decomposing the Total Removal Volume (TRV), (ii) recomposing parts obtained by decomposition, and (iii) extracting an optimal set of parts. Steps (i) and (ii) require a high computational load. We propose solving this problem by focusing on concave parts of the TRV in decomposition. The proposed method is also enhanced toward the multiaxis milling processes. A case study demonstrates the feasibility and effectiveness of our proposal.


2016 ◽  
Vol 826 ◽  
pp. 15-22
Author(s):  
Mahmoud Houshmand ◽  
Arya Karami ◽  
Reza Ghasemi

Nowadays the world of manufacturing and production has been encountered with a constantly changing behavior’s of customers. Moreover in the global market, a company can survive if it has the efficient capabilities for rapid product development.These capabilities are known to be important and they mainly affect on the market penetration and cost reduction. One way to enhance such capabilities is to integrate the essential activities of a manufacturing with the help of information technology. In recent years, the researchers have proposed integration of the computer-aided design (CAD), computer-aided manufacture (CAM) and computer-aided process planning (CAPP) as the main phases of product development lifecycle. These phases play an important role in the manufacturing environment and their integration will result in high-class production with minimum lead time. This paper focuses on the die design and process planning activities to produce the molds seamlessly . It studies the recent works on integration solutions and proposes an integration framework for glass bottle manufacturing companies.The paper considers the integration of the part design, macro process planning and the mold design activities. Moreover, the solution has used the ISO 10303 (STEP standard-International Standard for the Exchange of Product data). The novel aspects of the framework have been discussed through a case study. The case study highlights the integration of glass bottle design, process planning and bottle mold design to show the capabilities of the proposed framework.


2014 ◽  
Vol 598 ◽  
pp. 591-594 ◽  
Author(s):  
Li Yan Zhang

ISO 14649, known as STEP-NC, is new model of data transfer between CAD/CAM systems and CNC machines. In this paper, the modeling based on machining feature is proposed. The machining feature comes from the manufacturing process considering the restriction of machining technology and machining resource. Then the framework for computer aided process planning is presented, where the algorithms of operation planning is studied. The practical example has been provided and results indicate that machining feature based model can integrate with CAPP and STEP-NC seamlessly.


Sign in / Sign up

Export Citation Format

Share Document