新型多层交错剖分超高压模具的数值模拟及其试验验证

王伯龙; 李明哲; 刘志卫; 韩鑫

doi:10.11858/gywlxb.20180560

新型多层交错剖分超高压模具的数值模拟及其试验验证

doi: 10.11858/gywlxb.20180560

王伯龙^1,,
李明哲²,
刘志卫³,
韩鑫^1,*, ,

1.
山东理工大学农业工程与食品科学学院, 山东淄博 255049
2.
吉林大学无模成形技术开发中心, 吉林长春 130025
3.
安徽理工大学机械工程学院, 安徽淮南 232001

基金项目:

国家自然科学基金 51605007

吉林大学开放基金 K201705

详细信息

作者简介:
王伯龙(1989-), 男, 博士, 主要从事超高压模具设计、大腔体静高压装置技术研究. E-mail:892460540@qq.com

通讯作者:
韩鑫(1979-), 男, 博士, 副教授, 主要从事无模成形工艺及设备、塑性加工过程数值模拟研究. E-mail:hanxin@sdut.edu.cn

中图分类号: O521.3
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- PDF下载量: 19
出版历程
- 收稿日期: 2018-05-13
- 修回日期: 2018-06-02

Numerical Simulation and Experiment on New Multilayer Stagger-Split Die of Ultra-High Pressure Apparatus

WANG Bolong^1
,,
LI Mingzhe²,
LIU Zhiwei³,
HAN Xin^{1,*
, ,}

1.
School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255049, China
2.
Dieless Forming Technology Center, Jilin University, Changchun 130025, China
3.
School of Mechanical Engineering, Anhui University of Science and Technology, Huainan 232001, China

摘要

摘要: 介绍了一种新型的双斜边扇形块式多层交错剖分超高压模具，这种超高压模具是由箍紧环、多层交错剖分的预紧环和双斜边扇形组合压缸3部分构成。分析了双斜边扇形块式多层交错剖分超高压模具的受力情况，并与年轮式超高压模具做对比。结果表明：在相同腔体压力的情况下，双斜边扇形块压缸的等效应力和最大切应力分别降低46.8%和50.9%；双斜边扇形块压缸破坏时的油压为年轮式整体压缸油压的1.78倍；新型多层交错剖分超高压模具可实现大腔体超高压模具的制造，且具有装配方便、维修简单的特点。
- 超高压装置 /
- 结构设计 /
- 剖分块
Abstract: This paper introduces a novel ultra-high pressure device, double-beveled multilayer stagger-split die.This device consists of a double-beveled sector block cylinder, a discrete prestressed ring and a hoop ring.We explored the force situation of the double-beveled multilayer stagger-split die, and the results were compared with those of the belt type die.The results show that the von Mises stress and maximum shear stress of the double-beveled multilayer stagger-split die is 46.8% and 50.9% lower than that of the belt type die.The experimental results show that the pressure of the double-beveled multilayer stagger-split die is about 78% higher than that of the belt type die.At last, the double-beveled multilayer stagger-split die is easy to manufacture and assemble, and can achieve large cavity mold manufacturing.
- ultra-high pressure apparatus /
- structural design /
- split block

HTML全文

图 1 双斜边扇形块及双斜边扇形块式多层交错剖分模具示意图

Figure 1. Schematic structure of double-beveled multilayer stagger-split die

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图 2 两压缸的三向应力莫尔圆

Figure 2. Mohr's circle of two dies

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图 3 两种模具的尺寸(单位：mm)

Figure 3. Dimensions of two dies (Unit:mm)

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图 4 边界条件

Figure 4. Schematic diagram of boundary conditions

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图 5 两种模具的周向应力梯度

Figure 5. Circumferential stress gradient of two dies

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图 6 两种模具的径向应力梯度

Figure 6. Radial stress gradient of two dies

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图 7 模具实物图

Figure 7. Physical diagram of two dies

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