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板形控制的应用探讨 被引量:2
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作者 王丹 申秀萍 +1 位作者 彭惠峰 杨明界 《钢铁钒钛》 CAS 北大核心 1998年第2期28-32,42,共6页
根据板带钢轧制过程中的板形方程、板形锥和辊缝方程的概念,分析板形控制的工艺要求和控制思路,探讨选择板形控制方式过程中应考虑的技术问题。同时针对热轧中间坯、热轧供冷轧原料的板形指标,传统热轧条件下如何优化负荷分配等问题... 根据板带钢轧制过程中的板形方程、板形锥和辊缝方程的概念,分析板形控制的工艺要求和控制思路,探讨选择板形控制方式过程中应考虑的技术问题。同时针对热轧中间坯、热轧供冷轧原料的板形指标,传统热轧条件下如何优化负荷分配等问题进行了定量分析。 展开更多
关键词 方程 辊缝方程 板形锥 控制
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Hydrodynamic deep drawing of double layered conical cups 被引量:4
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作者 Alireza JALIL Mohammad HOSEINPOUR GOLLO +1 位作者 M.Morad SHEIKHI S.M.Hossein SEYEDKASHI 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2016年第1期237-247,共11页
Hydrodynamic deep drawing assisted by radial pressure is an advanced sheet forming technology with great advantages such as higher drawing ratio, good surface quality and higher dimensional accuracy. In this process, ... Hydrodynamic deep drawing assisted by radial pressure is an advanced sheet forming technology with great advantages such as higher drawing ratio, good surface quality and higher dimensional accuracy. In this process, both the bottom surface and the peripheral edge of sheets are under hydrodynamic pressure, so that the forming procedure is more uniform with low failure probability. Multi-layered sheets with complex geometries could be formed more easily with this technique compared with other traditional methods. Rupture is the main irrecoverable failure form in sheet forming processes. Prediction of rupture occurrence is of great importance for determining and optimizing the proper process parameters. In this research, a theoretical model was proposed to calculate the critical rupture pressure in production of double layered conical parts with hydrodynamic deep drawing process assisted by radial pressure. The effects of other process parameters on critical rupture pressure, such as punch tip radius, drawing ratio, coefficient of friction, sheet thickness and material properties were also discussed. The proposed model was compared with finite element simulation and validated by experiments on Al1050/St13 double layered sheets, where a good agreement was found with analytical results. 展开更多
关键词 hydrodynamic deep drawing radial pressure double layered sheet conical cup critical pressure
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