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Dimpling Suppression by Chamfered Rotatable Cubic Punch in Reconfigurable Die Forming蔡一杰1,2,胡勇1,2,XIONG Jie2,WANG Chengfang21. Key Laboratory of High Performance Ship Technology (Wuhan University... by conventional hemispherical punch in doubly curved sheet metal reconfigurable die forming process were considered.The rotatable cubic punch (RCP) was developed to suppress the dimpling defects more......
Neuro-Knowledge-Based Expert System (NKBES) for Optimal Scheming of Die Casting ProcessQiaodan HU, Peng LUO, Yi YANG and Liliang CHENSchool of Materials Science and Engineering, Huazhong University... with decision of gating system and die casting machine based on a neuro-inference engine launched under the MATLAB software environment. For enhancement of reasoning agility, an error back......
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) The maximum contact force between the upper die and the workpiece is much larger than that between the lower die and the workpiece; 3) The contact force evolution history is periodic and every period...; die life......
Dynamics of Polymeric Fluids: Part II The Molecular Theory of Die Swell: Correlation of Ultimate Die Swelling Effect to the Molecular Parameters and the Operational VariablesMingshi SONG, Qiang XU... extension, the definition of swelling ratio and the ratio of L to D [De=(L/D)], two expressions for the ultimate die swelling effect and the ultimate extrudate swelling ratio BEVT5 to the molecular......
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Tempering stability of Fe–Cr–Mo–W–V hot forging die steelsYuan-ji Shi,Xiao-chun Wu,Jun-wan Li,Na MinSchool of Materials Science and Engineering, Shanghai University摘 要:The tempering stability of three Fe–Cr–Mo–W–V hot forging die steels(DM, H21, and H13) was investigated through hardness measurements and transmission electron microscopy(TEM......
Skin layer of A380 aluminium alloy die castings and its blistering during solution treatmentZihao Yuan1,Zhipeng Guo1,S.M.Xiong1,21. School of Materials Science and Engineering, Tsinghua University2. State Key Laboratory of Automobile Safety and Energy, Tsinghua University摘 要:Skin layer is a characteristic microstructure of aluminium die castings, which......
The characterization of Fe-rich phases in a high-pressure die cast hypoeutectic aluminum-silicon alloyX.Y.Jiao1,C.F.Liu1,Z.P.Guo1,2,G.D.Tong3,S.L.Ma3,Y.Bi3,Y.F.Zhang3,S.M.Xiong1,21. School...="ChDivSummary">Both microstructural characteristics and fracture behavior of Fe-rich phases in a high-pressure die-cast hypoeutectic Al-Si alloy were investigated. Attention was focused on the morphology......