Abstract
In order to create a Computer Aided Process Planning (CAPP) model for a family of parts, it is necessary to establish a database containing the geometric features specific to that family. In the car body production line industry, several families of parts can be determined each having specific geometric features. The parts that are part of a family of parts must be designed in such a way that at the end, they contain those specific features. The next step in the implementation of the CAPP model, is to create a database for processing sequences associated with geometric features. Combining these two databases, the database of geometric features and the processing sequences, the result is the NC program of the designed part. This study presents the creation of these two databases and the link between them.
Highlights
With increase in global competition in manufacturing, there is a need to automate this process to reduce the lead time, improve quality, productivity and product development life cycles
Computer Aided Process Planning (CAPP) is the application of computer to assist the human process planer in the process planning function
The specific side is determined by the diameter of the hole in the body element and the height at which it is located. It follows that the main characteristics of the specific side are the diameter of the PIN and its active length, In this paper it is presents how to create a CAPP (Computer Aided Process Planning) model for the “PIN” family of parts
Summary
With increase in global competition in manufacturing, there is a need to automate this process to reduce the lead time, improve quality, productivity and product development life cycles. In this regard, Computer Aided Process Planning (CAPP) was introduced as a bridge between CAD and CAM systems that were developed independently [1]. Babic et al [2] classified feature-based technologies into three types: design by features (DBF), interactive form feature recognition and automated feature recognition. The logical step in process planning is to determine the appropriate types of processing operations and their sequences to transform the features, dimensions and tolerances of a part from the raw to the finished state
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