凸模

Reply alveolus of model carry through intension.

对冲小孔的凸模进行强度校核。

Based on the curve surface characteristic and the processing difficulty of the triangle core mold ,t...

从三角凸模的曲面特点及加工难点出发，分析了如何使用MasterCAM软件编制合理的刀具路径，使加工质量大为改善。

The influence of expanding-die diameter on the quality of finished products, such as the uniformity of deformation, the contour of a cross section and its ellipticity as well as the wall thickness of finished products, is discussed specially; a conception of relative radius of punch and the design criterion of it are given in this paper.

本文专门论述了机械扩径模具直径对成形品质的影响，提出了相对凸模半径的概念，系统分析了它对变形分布、成形件轮廓形状、椭圆度和壁厚的影响。

The cutting bending process and die structure of pedestal are introduced, and the cutting convex die, localization handspike and emending bending mechanism are briefly analyzed.

介绍了基座切断弯曲的工艺及模具结构，并对切断凸模、定位推杆及校正弯曲机构作了简单分析。

According to the ratio of kinematic energy to internal energy and the ratio of hourglass energy to internal energy, a criterion of virtual punch velocity selection was proposed.

根据系 统动能与内能的比值、沙漏能与内能的比值，提出了薄板成形动态仿真研究力学建模中虚拟凸模速度的选取准则。

According to the ratio of kinematic energy to internal energy and the ratio of hourglass energy to internal energy,a criterion of virtual punch velocity selection wasproposed.

根据系统动能与内能的比值、沙漏能与内能的比值，提出了薄板成形动态仿真研究力学建模中虚拟凸模速度的选取准则。

Keywords cold extruding punch;smelting steel; steeliness hard alloy;forging;compound hardening treatment;failure analysis

冷挤压凸模；熔炼钢；钢结硬质合金；锻造；复合强化处理；失效分析

The select of material and technology of manufacture to increase the working life of high speed cold extrusion terne die was summarized.

从生产实践中总结出延长高速冷挤压凸模使用寿命的材料选用及有关制造工艺措施，对在应用这些工艺措施时，应该注意的事项及作用机理进行了深入的理论探讨。

In order to resolve the problems of the die pin fracture and improve product seaming during the manufacture of aluminum alloy micro multi void tubes,on the LLJ300 continuous extrusion machine,the die with strengthen rib in flank of mandrels,preforming die and uniformity metal flowing hole are designed.

为了解决汽车平行流多孔管连续挤压过程中模具孔针断裂和产品焊合质量不好的问题，采用LLJ300铝连续挤压机，研制成功了具有凸模侧面加强筋、预成型模和具有分流通道的汽车空调平行流多孔管连续模具和腔体，有效解决了平行流多孔管连续挤压过程中存在的技术难题，并已应用于工业化生产。

Barlat1989 is recommended owing to its computational effectiveness. The technique is given using the dynamic relaxation method to obtain the steady position of the blank inside die opening line from end of holder forming stage to start of die forming stage.

在板料成形过程的数值模拟研究中，提出了将动力松弛法用于获得压边圈成形结束到凸模成形开始之前凹模开口线内板料的稳定位置，从而消除动力效应的处理技术。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。