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Jingdong book

CAD/CAM技术

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CAD/CAM技术

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《CAD/CAM技术》共分两部分,第一部分以理论为主,主要介绍计算机辅助设计与制造集成系统的所有相关理论基础知识;第二部分侧重应用,以CAID/CAM典型的集成软件为例,使学生了解理论的同时,掌握一定的实际技能。全书内容丰富,结构清楚,深入浅出,可作为高等院校本科生教材,也可以作为机械工程领域技术人员的参考书籍。
Catalogue

第1章 CAD/CAM概述
1.1 CAD/CAM的基本概念
1.2 CAD/CAM的系统结构
1.2.1 CAD/CAM产品生产过程与工作过程
1.2.2 CAD/CAM系统的结构
1.2.3 CAD/CAM系统的基本功能与任务
1.2.4 CAD/CAM系统的类型
1.3 CAD/CAM应用现状与发展
1.3.1 CAD/CAM技术的发展历程
1.3.2 CAD/CAM技术的应用
1.3.3 CAD/CAM技术的发展趋势

第2章 CAD/CAM系统构成
2.1 CAD/CAM系统的组成
2.2 CAD/CAM系统的硬件
2.2.1 CAD/CAM系统的硬件设备
2.2.2 CAD/cAM系统硬件设备的选用原则
2.3 CAD/CAM系统的软件
2.3.1 系统软件
2.3.2 支撑软件
2.3.3 应用软件
2.3.4 CAD/CAM系统软件的选用原则
2.4 CAD/CAM系统的选型
2.5 常见CAD/CAM软件系统

第3章 CAD/CAM系统基础知识
3.1 数学基础
3.2 弹性力学基础
3.3 数据结构与数据库技术
3.3.1 数据结构基础知识
3.3.2 数据库技术
3.4 计算机图形处理基础知识
3.4.1 坐标系
3.4.2 窗口和视区
3.4.3 图形裁剪
3.4.4 图形变换
3.4.5 图形的消隐
3.5 几何建模基础知识

第4章 CAD建模
4.1 几何建模技术
4.1.1 建模的概念
4.1.2 线框建模
4.1.3 表面建模
4.1.4 实体建模
4.2 特征建模技术
4.2.1 特征的定义与分类
4.2.2 特征建模的方法与框架
4.2.3 特征模型的表示与数据结构
4.3 参数化建模技术
4.3.1 参数化设计
4.3.2 参数化建模
4.4 装配建模技术
4.4.1 概述
4.4.2 装配模型的结构
4.4.3 装配建模的关键技术
4.4.4 装配建模的方法与作用
4.5 反求建模技术
4.5.1 概述
……

第5章 计算机辅助工程
第6章 计算机辅助工艺过程设计
第7章 CAM技术基础
第8章 CAD/CAM集成方式与关键技术
第9章 CAD/CAM其他相关技术
第10章 Pro/Engineer软件介绍与应用实例
第11章 ANSYS软件介绍及应用实例
第12章 Masteream软件介绍及应用实例
参考文献
Book Abstract

3.CAM技术的发展趋势
CAM技术的发展趋势将体现在以下几方面。
(1)面向对象、面向工艺特征的结构体系
以传统CAM曲面为目标的体系结构将被改变成面向整体模型(实体)、面向工艺特征的结构体系。系统将能够按照工艺要求自动识别并提取所有的工艺特征及具有特定工艺特征的区域,使CAD/CAE/CAM的集成化、自动化、智能化达到一个新的水平。
(2)基于知识的智能化系统
未来的CAM系统不仅可继承并智能化地判断工艺特征,而且具有模型对比、残余模型分析与判断功能,使刀具路径更优化,效率更高。同时具有对工件和夹具的防过切、防碰撞功能,从而提高操作的安全性,且其更符合高速加工的工艺要求。未来的CAM系统将开放与工艺相关联的工艺库、知识库、材料库和刀具库,使工艺知识的积累、学习、运用成为可能。
(3)使相关性编程成为可能
尺寸相关、参数式设计等CAD领域的特性,有希望被引伸到CAM系统之中。目前,以Delcam公司的PowerMILL及WorkNC为代表,采用面向工艺特征的处理方式,系统以工艺特征提取的自动化来实现CAM编程的自动化。当模型发生变化后,只要按原来的工艺路线重新计算,即实现CAM的自动修改。由计算机自动进行工艺特征和工艺区域的重新判断并全自动处理,使相关性编程成为可能。目前已有成熟的产品上市,并为北美、欧洲等发达国家的模具界所接受。由于CAM系统专业化、智能化、自动化水平的提高,将导致机侧编程方式的兴起,将改变CAM编程与加工人员及现场分离的现象。
(4)提供更方便的工艺管理手段
CAM的工艺管理是数控生产中至关重要的一环,未来CAM系统的工艺管理树结构,为工艺管理及即时修改提供了条件。较领先的CAM系统已经具有CAPP开发环境或可编辑式工艺模板,可由有经验的工艺人员对产品进行工艺设计,CAM系统可按工艺规程全自动批次处理。据报道,未来的CAM系统将能自动生成图文并茂的工艺指导文件,并能以超文本格式进行网络浏览。
随着互联网的普及,宽带通信技术的突破,通信、广播和计算机三网融合的步伐会加快,一个完全信息化的、充满虚拟色彩,而又现实的新时代即将到来,它将改变现代人的工作、学习、交往和娱乐方式。立足于全社会公用网络环境,建立专业化的虚拟网络服务环境,并开发适应于这类网络环境的CAD/CAM软件产品,创建CAD/CAM网上专营店,实施网上经销、网上培训与咨询服务,以及计算量大的软件网上运行,使用户能够实现多专业、异地、协同、综合全面地设计与分析,实施工程与产品创新,这将是CAD/CAM软件行业未来发展的新趋势。据报道:ANSYS公司已经和HP、EAI合作创建了一种针对ANSYS的网上服务体系。
……

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