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Numerical simulation and experimental verification of a novel double-layered split die for high-pressure apparatus used for synthesizing superhard materialsZhuo Yi1,2,Wen-zhi Fu1,2,Ming-zhe... on the principles of massive support and lateral support, a novel double-layered split die(DLSD) for high-pressure apparatus was designed to achieve a higher pressure-bearing capacity and larger sample cavity......
410083,China) Abstract: In the process of manufacturing the sophisticated and integral forgings with high performance, the accurate and stable operation of large die forging equipment is needed... of deformation force has become the key of accurate operation of the equipment. Therefore, a real-time modeling method of deformation force in the whole open die forging process was put forward. Firstly, the sub......
. 关键词:铁基高温合金；模压成形；润滑；致密化 中图分类号:TF124.31 文献标识码:A 文章编号:1672-7207(2007)06-1028-05 Influences of die wall... acid were used as the die wall lubricant and admixed powder lubricant, respectively. The influences on mechanical property of die wall lubrication procedure were compared to admixed powder......
by cold compaction, warm compaction, warm compaction combined with die wall lubrication (DWL) were measured under various compaction pressures using polytetrafluoroethylene (PTFE) emulsion as the die wall lubricant. The effects of warm compaction on the mechanical properties were studied. The tensile fracture behaviors of cold compaction and warm compaction were studied using scanning......
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of extrusion of square tube by porthole die HUANG Dong-nan1, 2, ZHANG Zhi-hao1, LI Jing-yuan1, XIE Jian-xin1 (1. Advanced Materials and Technologies Institute, University of Science and Technology Beijing... mesh reconstruction method, the influences of welding chamber depth and welding angle on forming quality of diplopore extrusion of square tube by a porthole die were analyzed. The results show......
utilizes the principle of rapid heat extraction and vigorous local extraction using the injection of fine gas bubbles through a graphite diffuser. Several forming processes such as die casting... aluminum alloys, die casting aluminum alloys, wrought aluminum alloys, and zinc alloys. The GISS process is currently developed to be used commercially in the industry with the focus on forming semi......
Trans. Nonferrous Met. Soc. China 23(2013) 1098-1107 Effect of die inlet geometry on extrusion of clover sections through curved dies: Upper bound analysis and experimental verification Tahir...: The effect of die inlet and transition geometry on the extrusion loads and material flow for extrusion of clover sections were investigated and presented both theoretically and experimentally. For this purpose......
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HSM strategy study for hardened die and mold steels manufacturing based on the mechanical and thermal load reduction strategyYing Tang1) and Hongsheng Guo2) 1) School of Mechanical Engineering... in great detail using experimental and geometrical analytic measures. Experiments were conducted using AlTiN-coated micro-grain carbide end mill cutters to cut hardened die steel. On the basis, a general......
