快速模具系统工艺特点与分析

采用传统的模具加工方法,制造周期长且成本高。快速成型配合传统制模技术不仅适合单件小批的模具快速制造,而且能适应各种复杂程度的模具快速制造。介绍了基于快速成型技术的快速模具制造技术工艺原理、分类、成型方法及其技术特点以及与传统成形方式的区别。从模具的寿命,模具的制作成本,模具的生产周期等方面对几种典型快速模具制造技术系统进行了比较和归纳。分析了快速模具制造技术面临的关键问题,展望了基于快速成型原理的快速模具制造的应用前景。     

基于LOM工艺快速成型的快速模具制造

本文系统地介绍了分层物体制造技术的原理、特点及其技术体系的基本环节,详细阐述了基于LOM工艺快速成型的快速模具制造技术。     

快速成型与快速模具制造技术

介绍了快速成型制造技术（ＲＰ＆Ｍ）的基本原理和主要方法以及常用的基于ＲＰ＆Ｍ的快速模具（ＲＴ）制造技术及其工艺流程,以及快速成型与快速模具制造技术的研究进展,分析了迅速增长的快速成型与快速模具制造技术市场及经济效益。     

快速成型和快速模具在发动机进气管开发试制中的应用

结合东风自主品牌发动机进气管的开发过程,系统地研究了发动机进气管的试制工艺。比较了几种典型的快速成型和快速模具制造工艺,指出基于快速成型和快速模具技术可实现发动机进气管低成本、小批量的快速试制。     

SLA制作快速注塑模具的技术

快速成型技术在快速制造复杂模型方面的优越性已经得到了普遍认可，如何将快速成型技术应用于快速模具制造是近期业内人士更加关注的问题，讨论了用光敏树脂成型技术（SLA）制造环氧树脂模具的技术难题及其解决的可能途径，为进一步开展此项研究工作打下了一定基础。     

基于RP原型的等离子喷涂快速制模技术

基于RP原型的等离子喷涂快速制模工艺是一种新型快速模具制造技术。主要结合不锈钢粉末喷涂模具制造过程，重点讨论了这种模具的结构、制造原理、方法和技术关键。     

快速成型制造技术及其在模具制造中的应用

首先分析了快速成型技术的历史和背景，介绍了常见工艺的原理特点，结合实例介绍了快速成型技术在加工模具制造中的应用和优点；指出了当前快速成型技术的研究重点和发展前景。     

基于激光快速成型技术的快速模具CAD

针对基于激光快速成型技术的快速模具制造的特点,介绍了快速模具ＣＡＤ技术的有关方面,提出了一个基于激光快速成型技术的快速模具设计系统的框架,以实现面向制造的快速模具的设计。     

试论快速成型技术在塑料模具制造中的应用

对于制造业来说,模具在生产中都发挥重要作用,当前对模具的质量和生产速度都提出了很高要求,所以在模具制造中需要应用快速成型技术。基于对快速成型技术原理的了解与探究,指出了快速成型技术在塑料模具制造中的意义,并在此基础上提出了该技术在塑料模具制造中的应用。     

基于光成型的快速模具制造技术

阐述了用成型原理制造模具的几种技术。这些技术工艺过程简单，生产周期短，产品成本低，不需专用设备和工具，与并行工程相结合将为模具技术发展创造最佳条件。适合于快速生产形状复杂的精密模具，具有广泛的应用前景。     

Rapid Sheet Metal Manufacturing. Part 2: Direct Rapid Tooling

The traditional methods adopted for tool design and production in the sheet metal forming industry usually carry a high cost and long lead time resulting in cost justification problems for short production runs. Rapid tooling (RT) technology is capable of justifying the cost of tooling suitable for short production runs or design evaluation purposes. In Part 1 of this work, a new process termed rapid sheet metal manufacturing (RSMM) for the production of soft tooling suitable for prototyping, tool development, and short production runs was introduced. In addition, an indirect RT method employing rapid prototyping (RP), rapid soft tooling, and casting for the fabrication of non-ferrous tools was presented. The current work, Part 2, presents an alternative technique for RSMM whereby metal forming tools are fabricated directly from the RP system via selective laser sintering (SLS).     

基于RP技术的快速模具制造

介绍了快速原型制造（RP）技术的发展情况和几种基于RP技术的快速模具制造方法，并对这几种快速模具制造方法做了详细介绍。最后指出RP的应用将大大促进模具制造技术的进步，对提高产品质量、加速新产品的开发以及降低工装模具的费用等方面都有积极的意义。     

Rapid tooling technology. Part 1. A comparative study

Rapid tooling (RT) is the technology that adopts rapid prototyping (RP) techniques and applies them to tool and die making. Research into RT techniques has shown that it is gaining more importance and is starting to pose a serious threat to conventional machining. In this paper, several popular RT techniques are discussed and then classified. A comparison is also made on these techniques based on tool life, tool development time and cost of tool development.     

快速成形集成制造系统的开发与研究

快速成形制造系统以快速成形技术的核心技术,实现ＣＡＤ／ＲＥ、ＲＰ、ＲＴ的技术集成。西北ＲＰＭ应用服务中心以西安交通大学为技术依托,在工艺集成、系统精度、数据集成、远程网络化服务等方面进行研究与开发。以实际案例说明快速成形技术及以其为基础的快速模具技术在企业新产品的快速开发中的重要作用。     

Rapid tooling aided by reverse engineering to manufacture EDM electrodes

The present work deals with the application of indirect rapid tooling (RT) technology to manufacture electrical discharge machining (EDM) copper electrodes from investment casting, with wax prototypes made by ThermoJet 3D printing, a rapid prototyping (RP) technique. The reverse engineering (RE) method is utilised to transform the point cloud data of an object surface, obtained from 3D digitising, in a 3D CAD surface model dataset. The methodology presented is fundamental to verify the prototype’s geometry for tooling so as to assure its metrological accuracy and to optimise foundry process parameters using finite element analysis (FEA). Based on a case study, some functional conclusions are presented for the application of RT in manufacturing EDM electrodes aided by 3D digitising and RE, validating the accomplishment by the integration of these technologies and methodologies in EDM manufacturing processes.     

<Emphasis Type="Bold">A Rapid Manufacturing Method for Water-Saving Emitters for Crop Irrigation Based on Rapid Prototyping and Manufacturing</Emphasis>

In order to build the complex built-in labyrinth design of an emitter which is a key element in water-saving devices, rapid prototyping and manufacturing (RP&M) is used to design the emitters and to manufacture corresponding rapid tooling (RT). Detailed CAD design of the emitter, CAD process design, and the generation of RT process modelling of the emitter have been carried out using parameterised design. Prototypes have been built using RP techniques to perform the rapid verification and modification of the emitter design; rapid tooling (RT) for the emitter has been fabricated using a metal spraying process to carry out trial-production. Finally, with the fabrication ofa precision mould as the basis, emitter mould design and manufacturing have been completed. As a result, the integration of design/verification/manufacturing of a mould and its products is realised.     

Rapid Prototyping and Tooling of Custom-Made Tracheobronchial Stents

Rapid prototyping (RP) and rapid tooling (RT) techniques can be applied to the field of medicine primarily because of their ability to produce customised profiles and geometries in relatively short lead times. In this paper, the process by which these techniques can be applied for the production of customised tracheobronchial stents for the purpose of maintaining patency in an occluded respiratory tract is described. A comparison of RP systems was carried out to establish the preferred RP method to produce the master model. The vacuum casting RT process was then used to produce the stent.     

Rapid prototyping and tooling techniques: a review of applications for rapid investment casting

Investment casting (IC) has benefited numerous industries as an economical means for mass producing quality near net shape metal parts with high geometric complexity and acceptable tolerances. The economic benefits of IC are limited to mass production. The high costs and long lead-time associated with the development of hard tooling for wax pattern moulding renders IC uneconomical for low-volume production. The outstanding manufacturing capabilities of rapid prototyping (RP) and rapid tooling (RT) technologies (RP&T) are exploited to provide cost-effective solutions for low-volume IC runs. RP parts substitute traditional wax patterns for IC or serve as production moulds for wax injection moulding. This paper reviews the application and potential application of state-of-the-art RP&T techniques in IC. The techniques are examined by introducing their concepts, strengths and weaknesses. Related research carried out worldwide by different organisations and academic institutions are discussed.     

快速成形/模具网络化制造服务平台的研究现状及其发展趋势

通过构建快速成形/模具网络化制造服务平台,可缩短新产品的开发周期,提高RP&M设备的利用率,动态优化资源,降低生产成本,实现基于Internet的异地协同开发制造。论述了快速成形/模具网络化制造服务平台的国内外研究现状及其我国构建快速成形/模具网络化制造服务平台的必要性,并探讨了该平台的未来发展趋势及其应用前景。