The key step in flashless forging is to optimize the design of preform die shape.
锻造过程实现净形和近净形制造最关键的一点是对预锻模进行优化设计。
The optimization procedure of preform die shape is given. The sensitivity of nodal velocity and temperature with respect to design variable is developed.
给出了模具形状优化设计步骤，推导了速度灵敏度方程和温度灵敏度方程。
This method can realize net shape forging by optimizing preform die shape. Flashless final forging with complete die fill and without folding-over defect can be obtained.
该方法通过优化设计预成形模具形状，可实现精形终锻，得到无飞边、完全充满型腔和无折叠的终锻件。
An optimization method for preform die shape in non-isothermal metal forming using plastic finite element method, sensitivity analysis and engineering optimization algorithm is presented.
采用塑性有限元、灵敏度分析和工程优化算法相结合的方法，对非等温成形过程中预锻模具形状进行了优化设计。
The extrudate shape, dimension and output can be effectively controlled on single roller extruder with its variable screw and roller speeds and the flexible combination of preform die and final die.
单辊筒口型挤出机通过变更挤出机螺杆和辊筒转速及灵活的预成型口型和终端口型设计组合可以有效控制挤出物的形状、尺寸和生产率。
The extrudate shape, dimension and output can be effectively controlled on single roller extruder with its variable screw and roller speeds and the flexible combination of preform die and final die.
单辊筒口型挤出机通过变更挤出机螺杆和辊筒转速及灵活的预成型口型和终端口型设计组合可以有效控制挤出物的形状、尺寸和生产率。
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