三牙轮钻头设计制造过程的集成数据管理平台

结合三牙轮钻头的设计制造过程，介绍了江汉钻头厂JZ－CIMS重点应用工程中的技术文档管理系统的结构和功能，以此作为集成数据管理平台，实现了JZ－CIMS中工程设计与制造分系统（ED＆M）的集成。     

三牙轮钻头设计制造过程的集成数据管理平台：1997年1月20日收到

结合三牙轮钻头的设计制造过程，介绍了江汉钻头厂ＪＺ－ＣＩＭＳ重点应用工程中的技术文档管理系统的结构和功能，以此作为集成数据管理平台，实现了ＪＺ－ＣＩＭＳ中工程设计与制造分系统（ＥＤ＆Ｍ）的集成。     

面向对象的制造资源分类与生产规划调度模型研究

在分析制造资源信息构成的基础上，应用面向对象（0－O）的技术，研究制造资源的结构形式及其相互关系，建立了面向对象的制造资源结构模型，为建立制造资源类库乃至工艺知识和工艺数据库奠定了良好的基础，并对制造资源与生产规划调度（PPS）的关系模型进行了研究。     

面向柔性制造系统的非传统工件安装方法及其应用技术

回顾了国内外关于面向柔性制造系统的工件安装方法及其研究动态，介绍了无基准零件密封技术（Ｒｅｆｅｒｅｎｃｅ Ｆｒｅｅ Ｐａｒｔ Ｅｎｃａｐｓｕｌａｔｉｏｎ－ＲＦＰＥ）的基本原理、组成和工艺过程，指出了该项技术用于生产实际尚存在的不足，提出并研制了快速寻位与状态记忆（Ｒａｐｉｄ Ｌｏｃａｔｉｎｇ ａｎｄ Ｓｔａｔｅ Ｍｏｍｏｒｙ－ＲＬ＆Ｍ）通用夹具系统，以促进ＲＬ＆ＳＭ安装技术在敏捷制造中的应用。     

计算机集成制造

ComputerIntegratedManufacturing（CIM）CIM是一种组织、管理与运行企业生产的哲理。它借助计算机软硬件，综合运用现代管理技术、信息技术、系统工程技术、制造技术、自动化技术，将企业生产及经营活动全部过程中有关人、技术、经营管理三要素及其信息流与物流有机地集成并优化运行，以实现产品高质量、低消耗、上和决，从而使企业具备市场竞争的优势。CIMS（计算机集成制造系统）就是这种哲理在某一企业的具体体现。计算机集成制造     

面向过程的制造执行系统的研究

对制造过度建模技术及面向过程的车间管理和控制方法进行了分析和研究。采用面向对象Ｏ－Ｏ技术抽象出制造过程中的基本不对象类,并建立了制造过程对象类的关系模型。制造执行系统以制造过程模型为“引擎”,实现面向过程的车间管理和控制,并面向过程将传统车间管理中零散的制造过程、人员、物料、设备、工序工艺和质量等信息通过制造过程这一基本的对象类全面地集成在一起。     

高性能叠层片式电感(MLCI)材料研究进展

综述了用于制造叠层片式电感（MLCI）的材料－－软磁铁氧体的低温烧结方法及各种低温烧结铁氧体材料的研究进展，简要介绍了叠层片式电感的制造与最新应用。     

快速重组制造系统中的组态原理及其实现

在研究组态原理及其核心内容的基础上,提出了在快速重组制造系统（ＲＲＭＳ）中实现组态原理的方法,并详细讨论了其适应性,组态原理在北京机研究所的柔性制造系统ＪＣＳ－ＦＭＳ－１上得到了部分应用,证明利用组态原理建立的柔性制造具有较广的适应性和快速可调整的能力。     

3D打印技术正在催生一个新时代的到来

3D打印技术,是以计算机三维设计模型为蓝本,通过软件分层离散和数控成型系统,利用激光柬、热熔喷嘴等方式将金属粉末、陶瓷粉末、塑料、细胞组织等特殊材料进行逐层堆积黏结,最终叠加成型,制造出实体产品。3D打印作为一种增材制造,与等材制造（铸锻焊）、减材制造（车铣磨）三足鼎立,是信息技术与制造技术高度融合,实现点点可控的控形控性的制造技术。     

芳香聚酰亚胺化学若干问题

本文以均酐－二苯醚二胺（ＰＭＤＡ－ＯＤＡ）体系为基础，对聚酰亚胺（ＰＩ）的母体聚酰胺酸（ＰＡ）的溶液聚合，及其以薄膜形式实现亚胺化转变为ＰＩ过程的若干重要化学问题和规律及与性能的关系，进行了系统介绍和讨论。     

Integration and application of feature recognition and mould manufacturing planning navigating process

Plastic injection mould manufacturing is diverse and complex. Traditional mould manufacturing planning often relied on experience and techniques. Therefore, in order not to affect the operation or even cause some loss of the enterprises, geometry information of computer-aided design (CAD) should be converted into manufacturing information of computer-aided process planning (CAPP) and CAM for automatic feature recognition to shorten the lead time. This study is the secondary development in a CAD environment creating a network plastic injection mould manufacturing navigating system and CAD/CAPP for integration and application. As part design is feature-based, each processing step can be regarded as a feature. By applying the hybrid recognition technology of the graph-based approach, the rule-based approach and hint-based approach in the analysis of part feature appearances, it can automatically categorise all the manufacturing features of the part and convert them into corresponding processes. The CAPP developed in this study can convert the part manufacturing features into corresponding processes and plan the part process sequence according to the process priority constraint relations. As proved by the case studies, the use of CAPP in this study can reduce planning time by 87%. It can provide users with a reference regarding process sequence, and speed up the part planning progress. Coupled with the mould manufacturing navigating process, it can achieve automatic design and manufacturing.     

Axiomatic modelling of agile production system design

The manufacturing organisations are witnessing a transformation in the manufacturing paradigm due to increasing competition. Agile manufacturing (AM) is a contemporary manufacturing paradigm which enables the organisations to survive in this competitive scenario. Design engineering is a vital technological enabler of AM. The research on axiomatic design in the field of AM is found to be feeble. In this context, this paper reports an axiomatic model of agile production system design using process variables. A hierarchical structure has been developed to model the design process of an agile production system composed of functional requirements, design parameters and process variables. In the theory of axiomatic design, process variables are created by mapping the design parameters in the process domain. This article serves as an efficient guideline for the design process to clarify the tools, methods and resources of designing agile production system of Indian electronic switches manufacturing organisation.     

A Comparative Study on the Production of a Hat Profile by Roll Forming and Stamping

Lightweight design using high-strength aluminum alloys has gained importance due to the continuing need for weight reduction and increasing crash safety requirements in the automotive industry. There are various manufacturing processes available for processing high-strength aluminum alloys. Herein, the production of high-strength aluminum parts by roll forming and stamping based on the example of an AA7075-T6 hat profile is compared. Roll forming represents a continuous manufacturing process, while stamping is a discontinuous process. Different process routes (T6, W-Temper and O) for roll forming as well as for stamping (T6, W-Temper, O and hot forming) are in focus of the investigation. Fundamental differences of the forming processes and the tempering condition are observed and criteria for the choice of the manufacturing process and process route are presented. The temperature-supported process routes improve the poor cold formability of AA7075 alloy and thus enhance the process window. Potential is offered for both manufacturing processes by applying tailored properties achieved through targeted quenching.     

基于搅拌摩擦的金属固相增材制造研究进展EI北大核心CSCD

基于搅拌摩擦的固相增材制造是大型轻质合金构件成形制造的新技术,已成为国内外先进成形制造领域研究的热点之一。本文对目前国内外基于搅拌摩擦的金属固相增材制造技术及其相关工艺机理的研究现状进行了分析和总结。常见的基于搅拌摩擦的固相增材制造技术可分为三类:基于搅拌摩擦搭接焊原理,使板材逐层堆积,从而获得增材构件的搅拌摩擦增材制造(friction stir additive manufacturing,FSAM)技术;采用中空搅拌头,通过添加剂(粉末或丝材)进行固相搅拌摩擦沉积的增材制造(additive friction stir deposition,AFSD)技术;采用消耗型棒材,通过棒材的摩擦表面处理,形成增材层的摩擦表面沉积增材制造(friction surfacing deposition additive manufacturing,FSD-AM)技术。重点分析了金属材料基于搅拌摩擦的固相增材制造技术的国内外研究与应用现状,对比了三类基于搅拌摩擦的固相增材制造技术的特征及其工艺优缺点。最后指出增材工艺机理、形性协同控制、外场辅助工艺改型、新材料应用和人工智能优化是基于搅拌摩擦的固相增材制造技术未来研究的重点方向。     

Construction of closed-form equations and graphical representation for optimal tolerance allocation

The Lagrange multiplier method (LM) is currently used to allocate tolerance for optimum manufacturing cost. This is a tedious iterative process and sometimes it allocates a component's tolerance outside its process tolerance limits. The present work develops a graphical representation which can help the process engineer to visualize the minimum and maximum values for assembly tolerances. The graphical representation developed can also help the process engineer to determine the exact total manufacturing cost of the assembly and help to fix the tolerance, which would not fall outside the limits prescribed. A simple C program is developed to construct the closed-form equations (CFE), and a single EXCEL graphical representation is derived for assembly tolerance, allocated tolerance, and total manufacturing cost. The developed algorithm has been demonstrated on a two- to five-component linear assembly, to help the process/manufacturing engineer's visualization before determining the tolerance specification on component dimensions. The test results show a maximum percentage deviation of 0.09% of assembly tolerance and 0.33% of total manufacturing cost between the LM and the newly developed CFE method.     

Managing distributed manufacturing knowledge through multi-perspective modelling for semantic web applications

The development and maintenance of semantic web (SW) means that collaborative manufacturing systems are faced with increasing challenges caused by the growing difficulty in managing distributed manufacturing knowledge. This paper presents a multi-perspective modelling approach to systematically manage distributed manufacturing knowledge on the SW. Considering knowledge engineering as a cyclic and constructive modelling process, a multi-perspective knowledge modelling process is proposed to evolve along knowledge elicitation, engineering modelling, UML-based object modelling, OWL-based ontology modelling, knowledge formalisation and OWL-QL assisted knowledge verification activities. The proposed approach is viewed as a promising knowledge management method that facilitates the implementation of computer supported cooperative work (CSCW) in distributed manufacturing for SW applications by integrating the industrial, UML enabled software engineering techniques into recent ontology-based knowledge engineering process. The feasibility of knowledge management through multi-perspective modelling is manifested using the manufacturing ontology for manufacturing electronic connectors.     

System reliability of a manufacturing network with reworking action and different failure rates

From the perspective of network analysis, the manufacturing system can be constructed as a stochastic-flow network, since the capacity of each machine is stochastic (i.e. multistate) owing to the failure, partial failure, and maintenance. Considering reworking action and different failure rates of machines, the input flow (raw materials/work in process) processed by each machine might be defective, and therefore the output flow (work in process/products) would be less than the input amount. To evaluate the capability of the manufacturing system, we measure the probability that the manufacturing network can satisfy demand. Such a probability is defined as the system reliability. A decomposition method is first proposed to divide the manufacturing network into one general processing path and one reworking path. Subsequently, two algorithms are utilised for different network models to generate the lower boundary vector of machine capacity to guarantee that the manufacturing network is able to produce sufficient products fulfilling the demand. The system reliability of the manufacturing network can be derived in terms of such a capacity vector afterwards.     

A systems approach to photolithography process optimization in an electronics manufacturing environment

There are many complex problems in the optimization of an electronics manufacturing environment, and it is the view of the authors that these problems should not be solved and optimized in isolation, but analysed in the framework of a system. A systems approach offers an overall approach for solving problems, and optimizing the whole of the system as well as discrete subsystems. The research introduced in this paper integrates several techniques, namely: Integrated computer aided manufacturing DEFinition (IDEF), and experimental design and response surface methods for the analysis, control and optimization of electronic manufacturing processes. Electronics manufacturing includes three major processes; Printed Circuit Board (PCB) manufacturing, semiconductor device manufacturing and electronics assembly. This paper describes a novel generic systematic methodology that has been used to create a model to optimize the photolithography process in PCB manufacture. For this, photolithography has been considered as a whole system made up of several sub-systems. This is shown in the process map for PCBs that focuses on photolithography and its subprocesses. A model of the manufacturing process is then given with the results of this being validated using an industrial study. Optimized settings for processing equipment are given resulting in an increase in process yield within industry.     

Motion generation and virtual simulation in a digital environment

The growing complexity in product design and manufacturing processes has made virtual prototyping an important new approach that enhances products and process development. Considering the ergonomic issues evident in product lifecycles, digital human modelling (DHM) is adopted for virtual simulation and proactive evaluation. A motion generation from semantics (MGS) system is proposed in this research. The MGS system features include virtual prototyping, natural language instruction, a method time measurement (MTM) translator and motion generator. The system was implemented using product lifecycle management (PLM) software and validated in an automotive manufacturing company. The practice of intuitively generating manual operations and conducting virtual simulations enables the system planners to quickly respond to manufacturing process changes and recursively improve the tooling and process design flexibility and efficiency.     

Multifield modelling and failure prediction of cellular cores produced by selective laser melting

A multifield simulation approach of cellular cores produced by additive manufacturing is presented. The analysis is aiming to derive the relation between the manufacturing process parameters and the resulting material failure behaviour. To this purpose, the selective laser melting manufacturing process is initially thermo‐mechanically simulated, followed by the mechanical analysis of the nonlinear core behaviour. The methodology is demonstrated in the case of open‐lattice body‐centred‐cubic (BCC) cellular cores.