Feature-based solid-modeling programs are making two-dimensional design tech-niques obsolete. However, Unix-based solid-modeling software are expensive. With the introduction of SolidWorks for Microsoft Windows, the cost is less than the price of earlier dimension driven solid-modeling programs.
3.2. Parasolid as a 3D kernel
SolidWorks uses Parasolid as a 3D kernel. Parasolid kernel modeling toolkit, is rec-ognized as a world's leading, production-proven core solid modeler. Designed as an exact boundary-representation solid modeler, Parasolid provides robust solid-modeling, generalized cellular modeling and integrated surface/sheet modeling capabilities and is designed for easy integration into CAD/CAM/CAE systems to give rapid time to market. Its extensive functionality is supplied as a library of routines with an ob-ject-oriented programming interface. It is essentially a solid modeler, which can be used to: (i) build and manipulate solid objects; (ii) calculate mass and moments of in-ertia, and perform interference detection; (iii) output the objects in various pictorial ways; (iv) store the objects in some sort of database or archive and retrieve them later; and (v) support freeform surfaces.
Fig. 2 SolidWorks API objects.
3.3. API
The SolidWorks application programming interface (API) is an OLE programming interface to SolidWorks. The API contains hundreds of functions that can be called from VisualBasic, VBA(Excel. Access. etc.), C. C++, or SolidWorks macro files. These functions provide the programmer with direct access to SolidWorks functional-ity such as creating a line, extruding a boss, or verifying the parameters of a surface.
摘要
三文实体建模革命已经达到了设计的主流。高端三文实体建模系统已经应用在大型航空航天工程师工作站,消费产品,汽车公司很多年。现在许多小公司从工作台转到计算机上,其中一个原因是,Windows-native/NT的灵活性和提高已经让软件开发者开发出方便可用的应用程序。高端用户一直在寻找大中型的实体建模软件。比如SolidWorks满足了用户的要求。
SolidWorks作为三文设计平台拥有Windows NT系统的设计环境,强大的装配功能,快速的学习曲线,使用方便、价格实惠的特点。通过建立的VC代码与商业软件即SolidWorks99与 API的联系,三文塑料注射模具设计系统已经在Windows-native/NT实施。系统为设计师提供了一个交互式计算机辅助设计环境,加快模具的设计过程并促进标准化。
关键词: 塑料注射模具;微软;计算机辅助设计;开模
1. 简介
随着塑料零件在产品领域广泛地使用,从消费产品到机械、汽车和飞机,注射成型过程中已被确认为一个重要的制造工艺。模具的设计过程一般都是新产品开发的关键路径。通常,模具的设计一直是一个很“迷惑”的艺术,需要多年经验一个人才可以相对精通。由于学习这门艺术最初的困难,越来越少的人从这个领域专业的知识和积累的经验收益。要改变现状,一种方法是使用计算机辅助设计(CAD)系统。
CAD作为日常软件已经发展到拥有广泛的功能,并应用到很多领域,从学校教学到三文机械设计。在目前,大多数CAD系统只提供了几何造型的功能,有利于模具设计的起草操作,并不为模具设计人员提供必要的知识来设计模具。因此,在高级3D建模平台,很多“附加”的软件,例如IMOLD,已经开发了,这样便于模具的设计流程。这样的处理是有利的。三文建模平台为插件软件提供函数库,用户界面和设计风格。因此,开发时间由于这些“附加”软件已显著减少 三维塑料注射模具设计系统英文文献和中文翻译(3):http://www.youerw.com/fanyi/lunwen_12294.html