TORNADO: a DBMS for CAD/CAM systems

TORNADO is a database management system developed for CAD/CAM application systems. It is a CODASYL-type network system written in FORTRAN, with a very powerful tool for handling complex data structures.There are no restrictions on combinations of object classes and relationships, and it directly handles many-to-many relationships and compound object classes. TORNADO also handles variable object length and dynamic length table records. A second paper will discuss the implementation details.     

The development and application of CAD/CAM workstations in the GDR

For accomplishing low-attended manufacture, step by step, it is necessary that information handling in technological production planning, management and shop control processes is organized economically. This is especially true with respect to computer-aided product development and production planning, faster order throughput, control of production equipment and delivery of information needed for high equipment utilization with a simultaneous increase in the volume of data processed automatically. These complex requirements call for a new type of approach in information handling technology (CAD/CAM) and corresponding layouts of workstations for the designer and manufacturing engineer. Such CAD/CAM facilities should be user-friendly so that they can be adapted to the user's need and not vice versa.     

Integration of CAD/CAM systems in automotive body engineering

This paper describes examples of CAD and CAM in automotive body engineering process at TOYOTA Motor Corp. Philosophy of integrating systems and importance of improvement of design quality are discussed with examples.     

TopSolid CAD/CAM

一、前言 北京宇航计算机软件有限公司(BACS)是北京航空航天大学校办的中港合资企业.一直以来,该公司致力于国外先进CAD/CAM系统的引进工作,以满足我国企业信息化制造的需要.     

A proposal for CAD/CAM interface with expert systems

In the computer-integrated manufacturing (CIM) environment, the key technologies, CAD and CAM, should be fully integrated with high operability. It is claimed, however, that CAD and CAM have so far been developed independently. Although much effort has been made to integrate CAD and CAM, this reality is far from completion.

Therefore, to establish a CAD/CAM interface with higher integration, the concept of a computer-aided drafting procedure with expert systems has been proposed on the basis of analysis of the information explicitly and implicity described on the part drawing, and also of the required knowledge of the designer to produce the part drawing. The CAD/CAM interface proposed here is available for producing not only the part drawing but also the process plan for the corresponding part, by effectively utilizing the knowledge of the expert. A prototype CAD/CAM interface deals with axi-symmetrical rotational parts implemented on a workstation.     

Advanced production systems (APS) — CAD/CAM systems of the future

The CAD/CAM-area is one of the fastest expanding areas in industry of today. In order to support user- as well as vendor-industry, a Norwegian-German project has been started in the field. It consists of a short term project (1982–1984) and a long term project (1982–1991). The paper deals with the results of the cooperative project (APS).     

CAD/CAM硬件资讯

支持LGA775四核CPU华硕P5KWS工作站主板上市2007年7月25日,本刊讯,全球第一大主板厂商华硕将旗下最新的工作站主板产品P5KWS推向市场。该产品最大亮点在于支持采用LGA775封装的英特尔四核处理器,能够显著提高处理效能,是针对多任务处理、多媒体应用而专门设计的工作站主板。     

CAD/CAM集成系统中CAD模型信息的检取

文中讨论了目前的CAD／CAM集成系统中信息的传递和交换，介绍了三维CAD软件Solid Edge的开放应用程序接口的体系结构，并给出了基于Solid Edge平台的CAM系统开发中检取CAD模型信息的方案。     

CAD/CAM的应用与发展

本文从国内外的应用情况出发,叙述了CAD/CAM技术的发展过程,指出了我国在应用CAD技术上当前存在的主要问题。     

A view of CAD/CAM

Professor Bézier examines the progress that has been made in manufacturing and production over the last 25 years.The effects of the introduction of CAD/CAM are discussed. The easy availability of accurate models and the introduction of flexible shops are put forward as major improvements. Possibilities for further improvements are mentioned.     

虚拟现实在CAD/CAM中的应用

简述了虚拟现实（VR）在CAD中应用的产生背景、意义；介绍了目前研究的基本状况及其基本概念和基本内容；综述了当前的一些主要方法和关健技术；分析了目前存在的一些主要问题。最后展望了该研究领域的发展趋势。