塑料模具CAD/CAE/CAM技术的应用及发展趋势

该文介绍了CAD/CAE/CAM技术在现代塑料模设计以及制造中的应用,采用CAD/CAE/CAM技术可提高模具产品的设计质量、缩短模具设计与制造周期、降低制造成本,该文还对CAD/CAE/CAM技术的发展趋势进行了展望。     

CAE在搁脚盖注射模CAD/CAM中的应用

介绍了CAE技术的应用特点，重点说明了HSCAE模拟流动软件的基本功能和其实现注射模型腔填充填拟流动的基本过程，并以搁脚盖注射模为例，说明了计算辅助工程分析(CAE)方法在模具CAD／CAM中的具体应用。     

模具工业先进制造技术特点及发展概况

重点介绍模具CAD/CAE/CAM集成化、现代模具检测与加工设备,新型模具材料及表面处理技术、快速经济制模技术等模具先进制造技术的发展特点;分析探讨了模具工业的新的制造哲理与模式。     

烟机异型件CAD/CAM系统的开发与应用

结合企业异型件CAD/CAM系统的开发与应用实际，简要说明了应用CAD/CAM技术是实现烟草机械异型件国产化的必要途径，论述了CAD/CAM系统的开发所依据的技术原理和涉及到的关键技术问题，分析了应用该系统所产生的社会经济效益．     

CAD／CAM／CAE汽车设计实例

简要分析了在汽车行业中对CAD／CAM／CAE技术和软件的应用,从汽车的不同位置、不同机构和性能要求等方面介绍了在汽车模具的不同技术指标上的应用特点,还分析了汽车行业应用CAD／CAM／CAE软件,有助于设计、分析、生产和数据管理,才能使本企业处于汽车行业的前列。     

CAD/CAM软件在高精密模具设计制造中的应用

近年来,随着国内工业产值的逐步上升,各领域对模具的要求越来越高,高精密、高质量、复合型模具越来越受欢迎,而传统依赖技术经验与操作技能的设计制造方式已经无法满足市场的需求。为了适应这一形势,CAD/CAM软件得到了广泛应用。鉴于此,该文结合CAD/CAM软件的内涵与应用优势,重点探讨了其常用软件的一般操作流程和在高精密模具立体模型设计、加工仿真、模具检测方面的应用。     

“CAD／CAM／CAE课程综合训练”教学的实践与探讨

文章介绍了“CAD／CAM／CAE课程综合训练”教学中的体会，阐述了CAkD／CAM/CAE实践性教学中要以统一数字化产品模型为主线，让学生树立信息集成的思想，并对CAD／CAM/CAE教学提出了建议。     

基于ProE的产品设计及塑料模具CAD／CAE／CAⅣ——某型号男式手机

CAD／CAE／CAM技术的应用从根本上改变了传统的产品开发和模具生产方式,推动了模具行业的发展。本设计的研究课题是基于Pro／E的产品设计及塑料模具CAD／CAE／CAM。以Pro／E为设计平台,建立手机的三维几何造型,并进行虚拟装配后生成工程图。选择该手机前壳体零件进行塑料模具设计,详细叙述了分型面选择、模具型腔数目的确定、冷却水道布局以及浇口位置的设置、模具工作零件的结构设计、侧向分型与抽芯机构的设计、推出机构的设计、标准模架的选用等。对模具进行拔模检测和厚度检测等以及模流分析。另外对复杂曲面的铣削进行模拟仿真。     

基于Pro/TOOLKIT的包装容器CAD/CAM系统研究

以Pro/Engineer为二次开发平台,利用其二次开发工具Pro/TOOLKIT,在Visual C 6.0编程平台上,开发出了一个塑料瓶及其吹塑模具的三维参数化CAD/CAM系统,提供了一种开发包装CAD/CAM软件的方法.     

浅谈CAD／CAE／CAM技术在汽车注塑模设计中的应用

本文从汽车注塑模具的特点、发展情况入手,阐述了cAD／cAE／cAM技术在汽车注塑模设计中的优越性及应用情况,并展望了CAD／CAE／CAM技术的未来发展方向。     

汽车覆盖件设计全流程CAD/CAE系统开发与应用

为解决目前CAD/CAE系统中数据转换精度损失和设计变更引起分析模型重复建模的问题,基于UGSNX平台开发了面向汽车覆盖件设计全流程的CAD/CAE集成系统FASTAMP-NX,该系统完全集成于NX环境,并基于特征造型技术建立了设计和分析相统一的关联参数化模型,避免了数据转换引起的精度损失和重复建模问题.系统求解器基于有限元逆算法和改进的动力显式算法,可应用于产品设计、工艺设计和虚拟试模的全流程,真正实现了"设计-分析-修改-优化"的闭式循环,极大地提高了汽车覆盖件产品和模具设计与分析的效率.     

“材料成型”专业CAX课程体系探索与实践

文章介绍了CAD／CAE／CAM课程体系教改实施意义、实施过程与实践效果，阐述了CAD／CAE／CAM课程体系强调理论与实操并重的教学目标，让学生掌握信息集成的制造思想的教育模式。并对CAD／CAE／CAM课程体系教改后进一步完善提出了建议。     

管件设计与成形领域的数字化技术

针对现代管件设计及加工制造的特点与需求,以几个国外管件CAD/CAE/CAM软件为例,介绍了当前数字化技术在管件设计、管材弯曲、激光切割以及管形测试等管材成形领域的典型应用.     

钢岔管CAD/CAM系统的研究与开发

给出以Visual Basic5.0 为平台,与AutoCAD相集成,设计出一套钢岔管CAD／CAM的实用软件的具体过程,成功实现了钢岔管施工放样详图的计算机辅助设计及钢板下料的计算机辅助制造。该系统能计算并绘制四种类型岔管的全套放样图,并通过CAD／CAM系统的集成,可将CAD参数传递给CAM子系统,生成焊缝代码文件,实现下料及焊接。     

CAD/CAPP/CAM集成系统的研究与开发

文章介绍了可实用的CAD/CAPP/CAM集成系统。该系统是由机械产品设计人员,工艺人员和数控机床NC编程人员共同努力,在商品CAD/CAM软件Pro/ENGINEER平台上开发的。系统由三个子系统组成：零件信息识别子系统,CAPP子系统和自动CAM子系统。零件信息识别子系统从三维零件中提取零件信息,CAPP子系统分析零件信息,自动生成零件加工工序和工步,从刀具数据库中查询刀具及切削用量,并完成各工序的工步排序。自动CAM子系统根据CAPP的结果,自动生成Pro/ENGINEER的NC工步,经过NC仿真后     

Feature-driven,process-based approach to the integration of CAD /CAM in wireframe models

This paper presents a structure for an integrated CAD/CAM system in wireframe models than can be simultaneously used for product design and manufacture of prismatic components. A feature-driven, process-based design methodology, which derives its basis from traditional geometry-based design, feature-based design, deterministic and expert heuristic manufacturing knowledge, is proposed. This methodology provides an integrated modelling environment for automation of downstream manufacturing applications such as process planning and NC code generation. Representation of features in the design database is not limited to geometry alone but includes material, tooling and machine specifications and is based on a process-to-geometry mapping. Research shows that informational completeness of a CAD database depends on application; and for manufacturing tasks, the vocabulary of the process describing the means of making a part should be mapped directly to the feature-based geometry. This effort answers key issues in integrating CAD and CAM in the most widely used wireframe modelling systems.     

箱体零件CAD／CAPP／CAM集成系统的研究与实践

在ＣＩＭＳ环境下，针对箱体零件ＣＡＤ、ＣＡＰＰ、ＣＡＭ信息集成的功能需求，在基于特征的箱体零件信息模型、工艺计划模型与服务于工艺设计的制造环境模型的支持下，开发出了特征造型，工艺设计及加工过程仿真与ＮＣ编程等子系统，从而完成了一个集成化的箱体零件ＣＡＤ／ＣＡＰＰ／ＣＡＭ系统。     

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.     

Integrated and concurrent approach for compound sheet metal cutting and punching

In sheet metal processing and manufacturing, there are a lot of small- and medium-sized job shops. These small- and medium-sized manufacturing companies have been facing keen competitive pressure in the market. This pressure has forced these companies to make every effort to shorten product development lead-time, improve production efficiency, approach high-quality standards, but at the same time cut down the costs. To meet the needs of these companies, this paper presents a compound cutting and punching production method supported by an integrated CAD/CAPP/CAM system in sheet metal manufacturing. Many existing commercial CAD/CAM systems are not suitable for this manufacturing method, especially under concurrent and global design and manufacturing environments. Some problems have to be solved before these CAD/CAM systems can be employed and integrated for this compound manufacturing method. This paper deals mainly with the solutions to solve some of these problems. The solutions include an integrated data integration platform based on Pro/INTRALINK and STEP, and a knowledge-based real time CAPP (RTCAPP) system for compound sheet metal cutting and punching. Within the presented CAD/CAPP/CAM system, some key modules have been developed. They are the automatic tool selection and manufacturing sequencing module, a shortest tool path optimization module, a cost estimation module and an automatic insertion of auxiliary path module based on knowledge bases. These modules will be addressed here.