基于并行工程的零件可制造性研究

用并行工程的思想，对零件可制造性进行较详细的分析。得出并行工程环境下的零件制造性能设计框架，给出一个集成的DFM系统实例，深入研究基于DFM实施方法。应用表明了本结构模型的可行性和可操作性。     

A comparison of approaches to concurrent engineering

In this paper, various approaches to the successful implementation of concurrent engineering are presented. Approach 1 addresses the information and software requirements of an integrated manufacturing information system. Two sets of data requirements for the design of mechanical products are discussed. Approach 2 uses feature based design as the impetus behind CAD/CAM integration. A conceptual framework leading to the development of a knowledge-based management system (KBMS) is proposed. KBMS is capable of representing multiple and concurrent views of features. Approach 3 considers product design concerns from inception to disposal in a unified life cycle engineering (ULCE) environment. Approach 4 focuses on assembly as an integrative function of all manufacturing activities. Approach 5 emphasises organisational and cultural issues and proposes that effective dialogue between design and manufacturing engineers is essential for abandoning the over-the-wall design concept. In conclusion, a critique of various approaches to concurrent engineering is provided.     

并行式面向材料设计的分析与研究

针对现行传统设计方法中材料选择方面所存在的问题,分析了环境协调性材料的特征,提出机电产品开发中并行式面向材料设计技术和关键技术,以改善环境影响。     

基于并行工程的多工位级进模设计

多工位级进模精度要求高,结构复杂,传统的串行开发存在着制造难度大、生产周期长的缺点.设计出了并行工程思想下的多工位级进模开发流程,并指出了在多工位级进模中实现并行开发的条件.     

生产流程分析法中基于编码的新零件成组工艺匹配

生产流程分析法是一种卓有成效的划分工艺相似零件组的零件分组方法,但其主要缺陷为无法迅速准确地插入新零件。针对这一不足提出了能全面描述组内零件编码信息的累加矩阵和基于此矩阵的匹配度匹配法,该方法使得生产流程分析法和零件编码有机地结合起来,提高了新零件匹配的灵活性和精确度,增强了生产流程分析法的实用性。     

A web-based advisory system for process and material selection in concurrent product design for a manufacturing environment

This paper reports the work of selecting suitable manufacturing processes and materials in concurrent design for manufacturing environment. In the paper, a fuzzy knowledge-based decision support method is proposed for multi-criteria decision-making in evaluating and selecting possible manufacturing process/material combinations in terms of the total production cost. Based on the proposed method, a prototype Web-based knowledge-intensive manufacturing consulting service system (WebMCSS) with the client-knowledge server architecture is developed to help designers/users find good processes and materials while still at the conceptual level of design. The system, as one of the important parts of an advanced design for manufacturing tool, is a concept level process and material selection tool that can be used as both a standalone application and a Java applet freely available via the Web. Interlinked with Web pages of tutorials, and reference pages explaining the facets, fabrication processes and material choices, the system performs reasoning and calculations using the process capability and material property data from the remote Web-based database and knowledge base that can be maintained and updated via the Internet. The use of the system is illustrated with an example.     

A structured approach to the automatic planning of machining operations for rotational parts based on computer integration of standard design and process data

The traditional procedure for developing a manufacturing process plan involves a number of interconnected steps beginning with the initial design and culminating in the instructions for the machine that makes the part. When performed manually, the procedure is very tedious, time consuming, and often, inconsistent. This paper presents an alternative method, called the Automated Machining-Operations Process-Planning System (AMOPPS), to automatically generate the process plan and the numerical control (NC) instructions to machine a part that has been previously designed by a computer-aided design (CAD) system. AMOPPS combines preset planning logic and data from three databases (viz., workpiece material, machine tool, and cutting tool) with appropriate data from a CAD database and information from the user about the workpiece to calculate the optimal machining parameters, print a process plan, print the corresponding NC program listing, and provide an on-screen animation of the cutting passes. Although AMOPPS is a prototype, it can be extended by adding other modules, and it does provide a structure through which a fully integrated manufacturing system can be developed.