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铸件凝固过程的温度场模拟及缩孔、变形和热裂缺陷的预测 被引量:13

Simulation of temperature field in solidification and forecast of shrink hole, deformation and hot crack
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摘要 本文以板锤铸件凝固过程温度场变化为研究对象,通过有限单元法,对铸件温度场进行模拟。基于模拟结果,采用温度曲线法和温度梯度法对铸件的缩孔进行预测,并结合温度-应力偶合对铸件的热变形和热裂缺陷进行预测。研究结果表明:对缺陷的预测情况与该产品实际生产结果完全相符,所以该数值模拟CAX技术在实际生产中完全可行。 Aiming at temperature variety of hammer casting solidification, temperature field has been simulated via FEM. Based upon simulation forecast of shrink hole has been done via temperature curve and gradient, forecast of deformation and hot crack of casting has been done via combination of temperature with stress, which have been completely conform to practical production results, hence this CAX technique of numerical simulation will be completely adopted to production.
出处 《中国铸造装备与技术》 CAS 北大核心 2003年第1期1-4,共4页 China Foundry Machinery & Technology
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参考文献5

  • 1Hou Shuping,Zhao Weimin,Ren fuzhan. Progress in the Micro-modeling of the solidification process.Journal of Materials Progressing Technology 123 (2002) 361-370
  • 2大中逸雄 许云祥(译).计算机传热凝固解析入门[M].北京:机械工业出版社,1988..
  • 3Niyama E,Uchida T,A method of shrinkage prediction and it's application to steel casting practice.49th Would foundry congress, 1982.
  • 4程军编著.计算机在铸造中的应用.北京:机械工业出版社,1994:172
  • 5杨全,张真编著.金属凝固与铸造过程数值模拟.浙江大学出版社,1997.

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