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《中国铸造》2016,(6):375-382
The traditional foundry industry has developed rapidly in recently years due to advancements in computer technology. Modifying and designing the feeding system has become more convenient with the help of the casting software, InteCAST. A common method of designing a feeding system is to ifrst design the initial systems, run simulations with casting software, analyze the feedback, and then redesign. In this work, genetic, fruit lfy, and interior point optimizer (IPOPT) algorithms were introduced to guide the optimal riser design for the feeding system. The results calculated by the three optimal algorithms indicate that the riser volume has a weak relationship with the modulus constraint; while it has a close relationship with the volume constraint. Based on the convergence rate, the fruit lfy algorithm was obviously faster than the genetic algorithm. The optimized riser was also applied during casting, and was simulated using InteCAST. The numerical simulation results reveal that with the same riser volume, the riser optimized by the genetic and fruit lfy algorithms has a similar improvement on casting shrinkage. The IPOPT algorithm has the advantage of causing the smalest shrinkage porosities, compared to those of the genetic and fruit lfy algorithms, which were almost the same. 相似文献
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本文就铝合金罐体的主要铸造方法(即砂型铸造、砂型低压铸造、金属型砂芯低压铸造、金属型低压铸造和V法铸造)所涉及的设备、模具和工艺方面的技术要点进行分析和探讨。 相似文献
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MAGMA模拟软件在压铸中的应用 总被引:6,自引:0,他引:6
近十多年来,先进的铸造工艺,例如镁合金压铸、触变压铸得到广泛的应用。这些都对铸造模拟技术提出了新的 要求。为了适应这些变化,MAGMA模拟软件中增加了新的物理模块和数据库,模拟更加方便和准确。本文概要介绍MAG- MA模拟软件在镁合金压铸,触变铸造和铸件应力、变形方面的应用数例。 相似文献
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1.5MW风力发电设备用轮毂铸造工艺优化设计 总被引:2,自引:2,他引:0
铸造凝固模拟软件作为一种有效的铸造工艺设计和优化工具,在铸造行业中得到了广泛的应用.采用Pro/E维造型软件造型,应用铸造CAE软件完成了对1.5MW风力轮毂铸造过程的计算机数值模拟,基于模拟结果,优化了铸造工艺,指导铸件的实际生产. 相似文献
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NUMERICAL SIMULATION OF CASTING''''S MOLD FILLING PROCESS 总被引:1,自引:0,他引:1
J.X. Zhou R.X. Liu L.L. Chen D.M. Liao H.S. Wei State Key Lab of Die Mold Technology Huazhong University of Science Technology Wuhan China 《金属学报(英文版)》2005,18(6)
1. Introduction Numerical simulation of casting's mold filling and solidification process is a technology to recon- struct and advance the traditional foundry industry by using computer technique, and it has an important effect on reducing the product cos… 相似文献
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铸造工艺设计是铸造生产的核心环节,利用计算机技术进行铸造工艺设计、优化,对提高铸造工艺设计效率有重要意义。目前,计算机技术指导铸造生产主要是在铸造数值模拟、基于商用CAD软件的铸造工艺CAD二次开发的研究与应用,以及PDM、ERP等管理软件对铸造企业信息化的支持。本研究提出基于KBL技术的铸造工艺数字化平台,该平台在容纳铸造基本知识库的基础上,有机结合了铸造工艺CAD、CAE、KBE等工艺设计技术和PDM、ERP等工艺信息管理技术;本研究阐述了在数字化平台下的铸造工艺设计、优化、管理流程,并在此基础上建立铸造工艺数字化平台的框架体系;同时,在此框架体系内,针对核心的铸造工艺的智能化设计方法、铸造CAD/CAE一体化进行了创新性的研究。该铸造工艺数字化平台的研究是将铸造工艺CAD、CAE、KBE与PDM等多项计算机辅助设计与管理有机融合的一次有益尝试,以推动计算机技术在铸造行业的应用与发展。 相似文献
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结合铸件质量要求,基于铸造数值模拟技术,分析了低压铸造的充型凝固过程,预测了铸件中的缺陷分布;最终通过试制,确保了压气室低压铸件质量,为该件的顺利生产奠定了基础. 相似文献