基于CAE技术的注塑模具高效率设计方法

本文分析比对了传统注塑模具设计流程和基于CAE技术的注塑模具设计流程各自的特点.阐述了注塑模具CAE基本结构、设计分析过程.通过典型塑料产品注塑模具设计.分析了结构特征和质,要求.选用Moldflow软件对产品不同方案的模具设计进行CAE模拟分析,说明使用CAE技术可以缩短产品开发周期,优化注塑模具设计质,提高模具设计效率,降低产品生产成本.     

精密注塑模具的注塑成型模拟

在精密注塑模具设计过程中应用计算机辅助分析的方法模拟注塑成型过程,对保证注塑成型产品的质量,提高生产率有极大的优越性。利用MoldflowPlasticInsight(MPI)软件对精密注塑模具的注塑成型过程进行了模拟,分别介绍了注塑参数、浇注系统和冷却系统的设计过程,比较了两套不同设计方案的注塑成型模拟结果。并对影响翘曲变形的各个因素进行了详细的分析。     

液晶电视前壳气辅注塑模流分析

分析了液晶电视前壳注塑成形的工艺特点,介绍了气辅注塑技术在液晶电视前壳注塑模具中的实际应用,通过应用Moldflow软件对模具的实际工作状况进行了动态模拟分析,验证了模具设计的合理性.     

用Moldflow/MPI模拟分析技术优化注塑模浇注系统设计

传统的注塑模设计和制造过程中很大程度上依赖于设计者的经验和制造工人的技巧,设计的正确性只有通过试模才能知道,制造的缺陷主要靠修模来纠正,有时还可能导致整套模具的报废,这样的设计和制造过程不仅使模具的质量难以保证,而且也使得模具设计和制造周期增加,成本提高。作为目前应用广泛的专业注塑模CAE流动模拟分析软件Moldflow,将丰富的注塑经验带进制件和模具设计,并将注塑分析与实际注塑机控制相联系,自动监控和调整注塑机参数。     

基于流动模拟的注塑模并行设计方法

塑料制品注射成型属于一次成型工艺,传统的串行模具设计和制造方式,造成了对设计经验物过分依赖和模具返修率的提高,在一定程度上制约了注塑模块的设计水平的提高和产品开发的周期。这里介绍了基于流动模拟技术的注射模并行设计方法。     

基于Moldflow的PDA外壳注塑模浇口优化设计

运用Moldflow软件对PDA外壳注塑成型过程进行模拟分析,对不同浇口位置和数目下的填充时间、注射压力、锁模力及翘曲变形进行分析比较,确定了最优浇口设计方案,为优化模具设计和指导生产提供依据,缩短模具开发周期,有效降低生产成本,提高了注塑产品质量。     

注塑模具刚强度分析研究进展

介绍了注塑模具及其刚强度分析在注塑模具设计中的重要性,对目前注塑模具刚强度分析研究现状和发展进行了论述。     

CAE技术在柜机风栅注塑模具设计中的应用

阐述了CAE技术在模具设计与制造中的重要作用及地位,通过应用CAE软件Moldflow/MPI,对柜机进风栅模具注塑成型过程进行流动模拟,分析其填充和保压过程,显示了CAE技术在模具开发过程中对于优化塑料制品设计、优化塑料模设计和优化注射工艺参数等方面所起到的显著作用。     

旋钮注塑模具设计与加工动态模拟

分析了旋钮工艺性能,确定其分型面;对注塑机进行合理选型;根据聚乙烯材料的注塑特性,确定了注塑工艺过程中的温度、压力和时间等参数;结合注塑模具设计基本理论,完成了注塑模具的结构设计;通过三维建模软件Pro/E完成了注塑模具的参数化建模;基于3ds Max对模具注塑过程进行三维加工动态模拟。通过理论设计与计算机辅助设计相结合的方法,提高了模具的设计制造效率及准确性。     

优化方法在注塑成型数值模拟中的应用

注塑成数值模拟技术,可通过计算机对设计方案进行分析计算,在模具制造之前,预测设计中存在的问题,为模具设计与注塑成型工艺优化提供定量依据。针对注塑成型数值模拟技术智能化、自动化的发展趋势,在此给出了注塑模冷却系统、塑件厚度尺寸、浇口位置、一模多腔的浇道布置及注塑成型鲁棒（稳健性）设计的优化模型,说明了优化方法在注塑成型数值模拟中的应用情况。     

A 3D CAD knowledge-based assisted injection mould design system

This paper presents the basic structure of an interactive knowledge-based injection mould design system (IKB-MOULD). The basis of this system arises from an analysis of the injection mould design process for mould design companies. This injection mould design system covers both the mould design process and mould knowledge management. IKB-MOULD integrates the intelligent design process and knowledge management with many developed interactive tools in a commercial solid modelling software environment.     

Developing a knowledge-based injection mould cost estimation system by decision tables

This paper presents a knowledge-based costing system (DTMOLD-1) for an electrical appliance manufacturer to assist mould cost estimation at the early design stage. The system is developed in the form of decision tables. Through the use of decision tables, numerous interrelated variables and technical data in the injection mould cost estimation process are organised and presented. When the features of a plastic part are input, the DTMOLD-1 will generate an estimated cost of the injection mould required to produce the part. The rationale behind the system as well as the methodologies used in the developmental process are discussed.     

基于UG的内螺纹瓶盖注塑模设计

UG MoldWizard是UG系统的一个独立的智能化设计注射模具的模块,它运用知识嵌入的基本理念,按照注射模具设计过程的一般顺序来实现模具设计的整个过程.在本次内螺纹瓶盖的设计中,充分体现UG在注塑模设计中的高效和快捷.通过对内螺纹瓶盖工艺分析,巧妙地采用镶块成型内螺纹和项出塑件,从而简化模具结构.并对模架、浇注系统...     

基于功能元耦合的注塑模机构设计方法研究

这里提出了基于功能元耦合的注塑模机构设计方法,分析了基于功能元的注塑模机构需求特征模型以及机构元特征模型,并在此基础上描述了注塑模机构的设计过程。研究以注塑模机构为对象,以功能元耦合为理论基础,开发了基于功能元耦合的注塑模机构设计原型系统。     

An Interactive Knowledge-Based CAD System For Mould Design in Injection Moulding Processes

This paper presents a practical prototype knowledge-based system, called IKMOULD, for mould design in the injection moulding process. It attempts to tackle the problem in a practical and integrative way, unlike the stand-alone and mathematical programs which have been developed in the past to solve only a part of the problem. A total quantitative and structured approach is not feasible in dealing with the complex and multirelated design problems generally involved in mould design. In this system, the computational module, the knowledge-based module and the graphic module for generating mould features are integrated within an interactive CAD-based framework. The knowledge base of the system can be accessed by mould designers through interactive programs so that their own intelligence and experience can also be incorporated with the total mould design. The approach adopted both speeds up the design process and facilitates design standardisation which in turn increases the speed of mould manufacture.     

基于MPI电脑面板注塑模优化设计

运用流动模拟分析软件MPI(Moldflow Plastics Insight)对电脑面板的注射成型工艺和填充过程进行计算机模拟,分析了模具不同浇口设置对注塑工艺造成的影响.主要通过填充过程工艺参数、熔接痕、气穴等对比分析,以保持注塑过程工艺参数合理和产品质量最好为目的,优化设计了电脑面板模具的浇注系统.     

注塑模数字化设计技术研究

阐述了一种注塑模数字化设计技术.运用Pro/E软件的通用功能模块和模架设计专家(EMX)模块,进行塑件及注塑模设计.以相机面壳注塑模设计为例,验证了该方法的可行性.该方法可以提高塑料注射模具的开发效率.     

光学应变测量系统的研究现状与展望

近代科学测量技术中的应变测量技术已为公众所瞩目，而光学测量技术应用到应变测量中则成为国内外学者关注的重心。为此，结合作者在应变测量计算方面的实践经验，以及对金属塑性加工领域的了解，分析了目前光学测量技术在应变测量方面的研究现状和动态，提出了光学测量在力学测量方面的进一步研究方向。     

A computational system for process design of injection moulding: Combining blackboard-based expert system and case-based reasoning approach

The process design of injection moulding involves the selection of the injection moulding machine, mould design, production scheduling, cost estimation, and determination of injection moulding parameters. Expert system approaches have been attempted to derive the process solution for injection moulding in the past few years. However, this approach has been found to be incapable of determining the injection moulding parameters owing to the difficulty in setting the moulding parameters. In addition, the existing expert systems for process design lack the proper architecture for organising a heterogeneous knowledge source. In this paper, the combination of a blackboard-based expert system and case-based reasoning approach is introduced to make up the deficiencies of the existing expert-system approach to the process design, from which a computational system for process design of injection moulding, named CSPD, was developed and described. CSPD first derives the process solution including the selection of injection moulding machine and mould base, tooling cost, and processing cost estimation, and production scheduling based on the blackboard-based expert-system approach. It is then followed by the determination of the injection moulding parameters based on the case-based reasoning approach and the previously derived partial solution.     

基于UG的注塑模具设计分模方法

UG的注塑模具设计过程是类似的,但作为模具设计最重要的一个环节分模却是灵活多变的。以风扇叶塑件为例,介绍了分模的基本原理,阐述了基于UG的自动分模与手工分模方法的分模过程,两种方法的灵活运用可大大提高注塑模具设计的效率。