新的嵌套排样算法

以多边形定点算法原理为基础，得出了新的嵌套求解算法成功解决了优化排样问题。并以C语言程序设计为基础，使算法在计算机上得以实现。     

斜楔式槽钢冲孔模

本文主要介绍了斜楔式槽钢冲孔模的结构与工作原理，凸模、双向斜楔、退料组件等主要零部件的设计方法。     

Forming processes control by means of artificial intelligence techniques

Forming processes are manufacturing processes that use force and pressure in order to modify the shape of a material part until obtaining the final product. The wide range of non-linear factors that drive this sort of processes make them very complex and extremely difficult to be controlled. Traditional control techniques, like PID controllers, have not offered a reliable solution when global control has been pursued and the figure of the operator still remains present in most of the forming facilities. On the other hand, although operators have demonstrated to be a very successful strategy when controlling this type of processes, the actual market evolution towards the fabrication of more complex parts, made of lower formability materials at higher production rates, is decreasing their capacity of reaction when solving the daily problems. Thus, the development of new global control systems based not on traditional control techniques and mathematical models but on the control strategy that has been used successfully for many years, the control through the experience and knowledge is now even more necessary. In the present work, an intelligent control system based on one of the main techniques within the artificial intelligence, expert systems, has been developed. The main purpose of this intelligent control system is to emulate the decisions that expert operators take but in a quicker and more reliable way. The developed intelligent control system has been installed in a blanking facility and very good results have been achieved.     

XML在冲模设计专家系统中的应用

分析了现有的网络标准在开发互联网应用中的局限性,介绍了丰在兴起的扩展标示语言XML,并将其引入冲模设计。设计了基于互联网的冲模设计专家系统构架,对XML的工程应用进行了有益的探讨。     

An experimental study for the effect of different clearances on burr, smooth-sheared and blanking force on aluminium sheet metal

In this study, an experimental study was carried out to examine the effect of different clearances on smooth-sheared depth, burr height and blanking force. Aluminium sheet metals with 0.8, 1, and 1.5 mm thicknesses were used in the experiments. These experiments were carried out in circular blanking dies to 6, 8, 10, and 12 mm diameters. Six different clearances (0.009, 0.064, 0.12, 0.175, 0.231 and 0.287 mm) were used for every material and diameter. The results of the experiment show that burr, smooth-sheared and punch force is strongly related to the clearance value. The results are in agreement with the results of previous theoretical and experimental work in the literature.     

模具间隙对冲裁件质量的影响分析

文章简述了冲裁变形过程和冲裁间隙的概念。提出冲裁件质量评定方法。分析了冲裁间隙大小对冲裁件质量影响的因果关系,阐述了冲裁缺陷产生原因及其预防措施。     

TOPOCROM毛化工艺在落料线上的应用初探

针对传统落料线上高速喂料辊打滑、定尺不准、辊印等问题,通过TOPOCROM毛化工艺在高速喂料辊上的应用,解决了落料线上亟待解决的问题。结果表明TOPOCROM毛化喂辊优于其他传统喂料辊和毛化喂料辊,具有喂料精度高、寿命长等优势。最后实验研究也证实了此项技术的可行性。     

面向对象知识表示方法在冲裁模KBE专家系统中的应用

知识表示是设计专家系统的关键技术之一.本文针对冲裁模具的结构特点以及设计的要求,研究了冲裁模设计的知识和经验的分类,并对产生式规则、框架和面向对象等知识表示方法进行了分析比较,采用面向对象封装产生式规则、框架的混合知识表示方法,在Visual C 中实现了冲裁模设计知识的表示实例.     

基于模具三维造型软件的复合冲裁模压力中心的确定

针对目前模具设计软件逐渐采用CAD／CAM集成系统的现状，以实例详细说明了基于模具三维造型软件MasterCAM软件确定复合冲栽模压力中心的操作过程，并对该方法进行了可靠性分析，从而实现了冲裁模压力中心的快速、准确定位。     

冲裁毛刺形成过程的有限元分析

采用弹塑性有限元法,运用有限元分析软件,对板料的冲裁过程进行了数值模拟,分析冲裁过程中毛刺的形成机理.设置了一系列的模具间隙、模具圆角参数,来分析模具间隙的增大和模具的磨损变化对毛刺形状的影响.模拟的结果与试验数据相对照,来预测冲裁断面的质量,优化工艺参数.