铸造2023，Vol.72Issue(12)：1631-1635,5.
解决铝合金压铸件泄漏缺陷的模具优化设计
Die Optimization Design for Solving Leakage Defects of Aluminum Alloy Die Castings
摘要
Abstract
Taking an automobile engine crankcase as an example,this paper introduces the leakage parts of aluminum alloy die castings.Through the sealing test and sectioning inspection of the defective parts of the castings,it is determined that the leakage was caused by the penetrating shrinkage and porosity in the castings.The root causes of the shrinkage were analyzed by cause analysis table.And through the mold optimization design of local pressurization,increasing core cooling and adding heat dissipation reticulation on the surface of the place where the mold cavity contacts with the molten metal,the shrinkage defect of the crankcase has been effectively solved,and the first pass rate of the aluminum alloy die castings has been improved.关键词
铝合金压铸件/缩孔/泄漏/局部增压/模具冷却Key words
aluminum alloy die castings/shrinkage/leak/local pressure boosting/mold cooling分类
矿业与冶金引用本文复制引用
侯丽彬,刘海影,郭瑞..解决铝合金压铸件泄漏缺陷的模具优化设计[J].铸造,2023,72(12):1631-1635,5.基金项目
辽宁省新能源汽车轻量化铸件数字化设计及智能制造重点实验室(编号:2022JH13/10200058) （编号:2022JH13/10200058）
模具设计与压铸应用技术团队(编号:KYTD202206). （编号:KYTD202206）
