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首页> 外文期刊>Wire Journal International >FEM analysis of shrinkage fitting for fabrication of shaped cemented carbide dies with square or hexagonal cross section
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FEM analysis of shrinkage fitting for fabrication of shaped cemented carbide dies with square or hexagonal cross section

机译：制造方形或六角形硬质合金模具的收缩配件的有限元分析

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In this study, the effect of shrinkage fitting, which is earned out to increase dimensional accuracy of a drawn material and to increase die life, and the optimum conditions for shrinkage fitting were examined. The following conclusions were reached. The relationship between interference and average compression stress of round tip dies, calculated based on the strength of material, was in fair agreement with that obtained by FEM analysis. The analysis of shrinkage fitting based on the strength of material cannot be directly applied to the analysis of shaped dies. However, the amounts of deformation and stress distributions of hexagonal, octagonal and flat die tips can be estimated using FEM analysis. Wire material was introduced in a die subjected to shrinkage fitting, and the die life and dimensional accuracy of the drawn wire were examined based on the stress condition of the die tips during drawing. On the basis of the above results, it was concluded that FEM analysis is effective for the analysis of shrinkage fitting of shaped dies, and for the examination of deformation and die life during drawing.
机译：在这项研究中，研究了收缩装配的效果，该效果是为了提高拉拔材料的尺寸精度和延长模具寿命而进行的，并研究了收缩装配的最佳条件。得出以下结论。根据材料的强度计算出的圆头模具的干涉与平均压缩应力之间的关系与通过有限元分析得出的关系是合理的。基于材料强度的收缩拟合分析不能直接应用于成形模具的分析。但是，可以使用FEM分析来估计六角形，八角形和扁平模头的变形量和应力分布。将金属丝材料引入经过收缩装配的模具中，并根据拉丝过程中模头尖端的应力状况检查拉丝的模具寿命和尺寸精度。根据以上结果，可以得出结论，有限元分析对于分析成形模具的收缩配合，检测拉拔过程中的变形和模具寿命是有效的。

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