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空心阶梯轴旋转压缩过程的极限

Limits of the Process of Rotational Compression of Hollow Stepped Shafts.

作者信息

Bartnicki Jarosław, Tomczak Janusz, Pater Zbigniew

机构信息

Faculty of Mechanical Engineering, Lublin University of Technology, 36 Nadbystrzycka Str, 20-618 Lublin, Poland.

出版信息

Materials (Basel). 2019 Sep 19;12(18):3049. doi: 10.3390/ma12183049.

DOI:10.3390/ma12183049
PMID:31546942
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6766309/
Abstract

This article presents the results of theoretical-experimental testing of the process of rotational compression of hollow stepped shafts. The advantages of the technology and the potential area of its application were discussed. Further on, the limits of the rotational compression technology, preventing the manufacturing of high-quality products, were presented. The research was conducted on the basis of numerical modelling using the finite element method in Simufact Forming, as well as the results of experimental tests performed in a forging machine for rotational compression. On the basis of the results obtained, it can be stated that the process of rotational compression of hollow stepped shafts can be hindered by the following phenomena: uncontrolled slip, deformation of the semi-finished product wall, twisting of the formed steps, material cracking, and deformation of the cross-section of the formed steps. The possibility of those hindrances occurring depends heavily on the assumed technological parameters of the process. For this reason, knowledge of the cause of occurrence of those limitations is vital for the development of the technology and the choice of the process parameters.

摘要

本文介绍了空心阶梯轴旋转压缩过程的理论-实验测试结果。讨论了该技术的优点及其潜在应用领域。此外，还介绍了阻碍高质量产品制造的旋转压缩技术的局限性。该研究基于在Simufact Forming中使用有限元方法进行的数值模拟，以及在旋转压缩锻造机上进行的实验测试结果。根据所得结果，可以指出，空心阶梯轴的旋转压缩过程可能会受到以下现象的阻碍：失控滑动、半成品壁变形、成型台阶扭曲、材料开裂以及成型台阶横截面变形。这些阻碍发生的可能性在很大程度上取决于该过程假定的工艺参数。因此，了解这些限制产生的原因对于技术发展和工艺参数的选择至关重要。

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