基于工业设计和先进制造技术的产品快速开发

提出一种将工业设计与逆向工程（RE）、CAX技术、快速成型和快速模具结合起来的集成开发模式。在该模式下,利用RE技术直接将工业设计获得的实物模型转换为数据模型。数据模型在CAD系统中进行处理,构造曲面模型或STL模型表面、再经过STL模型表面的偏置处理,利用RP和RT技术直接、快速的制作出样件或小批量成品,利用CAM系统还可以输出机械加工需要的数据代码。本文洋细介绍了该模式的组成部分、工作流程以及接口等关键技术,并以一个实例来说明该模式的正确性和高效性。     

零件表面倾角对MEM工艺支撑参数的影响

分析了表面倾角和水平悬空长度对熔融挤压MEM快速成型产品的支撑影响,以多种参数进行实际加工,得到无需添加支撑即可成型的极限悬空参数:表面倾角60°,水平悬空长度3mm。零件悬空部分的无支撑成型是利用成型材料自身的粘结性能、强度及刚性来支持丝料的悬空连续轨迹,保证后续成型。成型环境温度对悬空部分的成型质量影响较大。     

快速成型在CAD的应用

本文阐述ＲＰ快速成型的原理及在ＣＡＤ的应用。简单介绍了ＲＰ快速成型ＣＡＤ系统的基本流程，着重讲述了从制三维模型到模型介面转换再到产品的加工成型过程，并展望该项技术的发展趋势。     

Rapid Tooling-Rapid Abrading Process Integratedwith Rapid Prototyping

The paper is to outline a new process for manufacturing rapid graphite electrode. It detailsthe steps in Providing integration with Rapid Prototyping (RP) into rapid electrode abrading Process.The key to this combination is the successful model or patted creating using the RP technology.Significantly reduced lead-time, shortened learns curve, lowered revision changes cost and eliminatedor reduced mold polishing are the consequent results. high quality Electrical Discharge Machining(EDM) electrodes are sometimes difficult to be manufactured rapidly and are very time-consumingby conventional methods, even using Computer Numerical Control (CNC) machines. Abradingprovides a simple way to create etuemely detailed and complex electrode to make molds in toolingmaking industries. Integration with the rapid development of the Rapid Prototyping & Manufacturing(RP&M) technology, the rapid electrode abrading process has been regarded as one of the majorbreakthrough in tooling making technology.     

基于快速制造的产品定制生产

介绍了快速原型制造的发展状况,对快速制造与定制技术进行了分析与研究,详细描述了轮椅坐垫的个性化快速定制生产技术与生产过程,并对快速定制生产进行了总结与展望。     

快速金属模具制造

快速金属模具制造是一种新的模具制造技术，它是将快速成形技术ＲＰＭ应用到模具制造中的结果，受到工业界的高度重视。讨论了快速原型到金属模具的转换技术。不同的金属模具应使用不同的精密铸造方法。     

分层实体制造激光光路分析与快速校准

文章介绍了分层实体制造激光快速成型机的光路系统组成，分析了光路系统偏差对零件尺寸形状误差的影响，最后介绍了浙江光路快速校准的方法。     

RP技术的集成化发展趋势

探讨了我国RP技术研究和开发的各种集成化发展趋势。     

Round-Trip Prototyping Based on Integrated Functional and User Interface Requirements Specifications

Requirements engineering in the new millennium is facing an increasing diversity of computerised devices comprising an increasing diversity of interaction styles for an increasing diversity of user groups. Thus the incorporation of user interface requirements into software requirements specifications becomes more and more mandatory. Validating these requirements specifications with hand-made, throw-away prototypes is not only expensive, but also bears the danger that validation results are not accurately fed back into the requirements specification. In this paper, we propose an enhancement of the requirements specification method SCORES for an explicit capturing of user interface requirements. The advantages of the approach are threefold. First, the user interface requirements specification is UML-compliant and integrated into the functional requirements specification. Second, prototypes for validation purposes can semi-automatically be generated. Third, the model-based generation of prototypes allows for ‘round-trip prototyping’ such that manual changes of the prototype during the validation process are automatically fed back into the requirements specification.