The use of the network, and the use of collaborative technology, the use of two kinds of "intellectual resources" inside and outside the enterprise to serve the enterprise, not only help the company to absorb the essence of the outside of the enterprise, more importantly, can make up for the loss of enterprise technology personnel and lack of innovation.

4. Further strengthen intelligence

Deepening the application of CAPP will inevitably involve the processing speed of CAPP. Only by speeding up the processing speed, can the production preparation period be shortened more effectively and the market launch time can be shortened.

To improve the processing speed of CAPP, it is obviously necessary to improve the automation ability of CAPP. And intelligence is a very important means to improve automation. In fact, from the original logic-based generative system to the expert system, people have done a lot of research on the intelligent technology of CAPP. Various artificial intelligence theories, such as neural networks, fuzzy theory, genetic algorithms and agents, have begun to be applied in some of the more advanced CAPP systems, and have achieved good results. For the intelligent expansion of the previous CAPP system, it is also a powerful way to improve the automatic processing of CAPP.

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CAPP research status

1. CAPP's development and research abroad

The concept of CAPP was first developed in the 1960s. In 1969, Norway launched the world's first CAPP system, AUTOPOLS (Automated Process Planning System), and in 1973 officially launched the commercial AUTOCOPS system. In 1976, the American Computer-Aided Manufacturing International (CAM-I) launched the CAM-I'S Automated Process Planning system, which promotes the milestones of CAPP development.

In the nearly 40 years of CAPP's emergence, it has experienced five stages of development, namely:

Phase 1 - Manual classification, standardized process plans;

Phase 2 - Computer maintained process plans;

Stage 3 - Derivative CAPP (Variant CAPP);

Stage 4 - Generative CAPP (Generative CAPP);

Stage 5 - Dynamic, innovative CAPP (Dynamic, generative CAPP).

Before the CAPP was created, in order to automate the process, the manufacturing industry began to classify the processes and standardize the processes to improve the process planning.

With the development of computer technology, the manufacturing industry began to use computers to maintain and manage the process data and data that have been classified and standardized, thus entering the second stage of development.

With the development of the theory, CAPP entered Phase 3, resulting in a true CAPP system-derived system. The derivative system was developed from Phase 2 (which can be called "Search CAPP") and forms a system with varying degrees of modification, editing, and automatic filtering capabilities today.

The further development of CAPP has entered Phase 4 - the creation of a system. In 1977, Wysk first proposed a generative CAPP system, APPAS, in his doctoral thesis. The ideal generative CAPP system, through decision logic to emulate human thinking, automatically generates processes without human intervention.

Then the development of CAPP began to enter the fifth stage, which is characterized by intelligence and dynamics.

Since the 1980s, some scholars have begun to explore the application of artificial intelligence technology to the research and development of CAPP systems, and successfully developed intelligent CAPP systems such as knowledge-based CAPP system and CAPP expert system. Van.Zeir G proposed the concept of Interactive Process Planning and developed an interactive CAPP prototype system.

The technology of CAPP's five development stages is not limited to the development of this stage, but from the low stage to the advanced stage. According to the process planning process, we can divide the CAPP system into three broad categories: derivative, generative and hybrid.

2. The development and research status of domestic CAPP

The research on CAPP technology in China began in the 1980s. In 1982, Shanghai Tongji University officially launched China's first CAPP system - TOJICAP; Northwestern Polytechnical University launched China's first CAPP system - CAOS system. With the support and promotion of the National 863/CIMS Program, in the last few years of the 20th century, China's CAPP technology has achieved great results.

In 1996, Northwestern Polytechnical University completed the development of the national 863-CIMS key promotion and application project "XAC-CAPP Engineering Subproject XAC-CAPP System". In 1997, Jinye Xigongda Software Co., Ltd. proposed the CAPP productization concept and theoretical method system based on “integrated intelligence based on interactive design, product data as the core, process design and management integration”.

In recent years, the domestic successful CAPP system includes “GS-CAPP” of Zhejiang Datian Company, “CAPPFramework” of Northwestern Polytechnical University, “InteCAPP System” of Tianyu Information Industry Co., Ltd., and Beijing Qinghua Jingyi Tianhe Software Company. “THCAPP”, “Opening CAPP” of Huagong Technology Industry Co., Ltd. and “SIPM-CAPP” of Shanghai SIPM Company.

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