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首页> 外文会议>International Symposium on Advanced Optical Manufacturing and Testing Technologies; 20070708-12; Chengdu(CN) >Analyzing the Extrusion Mould for Aluminum Profile
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Analyzing the Extrusion Mould for Aluminum Profile

机译：分析铝型材的挤压模具

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摘要

The die or mould used for extruding aluminum wallboard profile is in serious work conditions, so it is easy to appear drawbacks in the mould such as non-uniform stress and strain distributions, crack initiation and propagation, elastic warp, and even plastic distortion. As we know, the extrusion die or mould is subject to complex loads including the extrusion pressure, friction and thermal load, which make the mould complicated and hard to be designed and analyzed by using conventional analytical method. In this paper, we applied Deform-3D, FEA (Finite Element Analysis) software used frequently in all engineering fields, to simulate three-dimensional extruding process of aluminum profile. The simulation results show that the deformation increases gradually from inside to outside. Exterior deformation contour distribution is relative uniform since the influence of inner holes on deformation is small, and the contour form is regular and similar with the shape of the mould. However, the interior deformation contour is irregular as the influence of holes with basically symmetric equivalent curves. At the middle of the mould, the deformation reaches the largest, it reaches 0.633mm. The deformation of the mould can be reduced by increasing the distance between two holes or increasing thickness of the mould. Experiment result accords with simulation. The simulation process and results ensure the feasibility of finite element method, providing the support for mould design and structural optimization.
机译：用于挤压铝墙板型材的模具或模具处于苛刻的工作条件下，因此很容易在模具中出现缺陷，例如应力和应变分布不均匀，裂纹的产生和扩展，弹性翘曲，甚至塑性变形。众所周知，挤压模或模具要承受复杂的载荷，包括挤压压力，摩擦力和热载荷，这使模具复杂且难以使用常规分析方法进行设计和分析。在本文中，我们应用了在所有工程领域中经常使用的Deform-3D，FEA（有限元分析）软件，以模拟铝型材的三维挤压过程。仿真结果表明，变形从内到外逐渐增大。由于内孔对变形的影响较小，且外部轮廓轮廓分布相对均匀，轮廓形状规则且与模具形状相似。但是，由于具有基本对称的等效曲线的孔的影响，内部变形轮廓是不规则的。在模具中间，变形达到最大，达到0.633mm。可以通过增加两个孔之间的距离或增加模具的厚度来减少模具的变形。实验结果与仿真吻合。仿真过程和结果确保了有限元方法的可行性，为模具设计和结构优化提供了支持。

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