Study of Wear Resistance of Mandrels upon Piercing Workpieces Made of Steel 20Kh13

Q4 Materials Science Steel in Translation Pub Date : 2024-02-29 DOI:10.3103/s096709122311013x

A. A. Korsakov, D. V. Mikhalkin, A. V. Krasikov, A. S. Aleschenko, Yu. V. Gamin, A. I. Bannikov, Ya. A. Chemaeva, E. Yu. Mikhalkina

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Abstract

The results of an experimental study regarding the influence of the material and calibration of the piercing mill mandrel on its wear resistance upon piercing workpieces made of steel 20Kh13 have been presented. To carry out the study, mandrels made of four grades of steel (4Kh5MFS, 5Kh3V3MFS, 20Kh2N4A, 3Kh3M3F) and two types of calibrations have been used: with a smooth working surface and a specially designed one that ensures fractional deformation in the source during piercing by applying a periodic variable profile to the working surface, representing longitudinal grooves. The effectiveness of using a mandrel with longitudinal recesses on the working surface to increase its durability is confirmed by the results of computer modeling using the finite element method in the QForm 2D/3D software product. The experimental study was carried out on a two-roll piercing screw rolling mill MISIS-130D with barrel-shaped rolls and a guide tool in the form of fixed rulers. The durability of the mandrel was assessed by visual inspection of the quality of the working surface and by determining the change in mass after each pass upon piercing workpieces made of steel 20Kh13. According to the results of the work, it was found that the wear of all types of mandrels is predominantly adhesive in nature (there are traces of metal adhesion and tearing out on the mandrels). The best results in terms of durability were shown by a mandrel made of steel 20Kh2N4A.

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研究 20Kh13 钢心轴在刺穿工件时的耐磨性

摘要就穿孔轧机心轴的材料和校准对其在穿孔 20Kh13 钢制工件时的耐磨性的影响进行的实验研究结果已经公布。为了进行这项研究，使用了由四种钢材（4Kh5MFS、5Kh3V3MFS、20Kh2N4A、3Kh3M3F）制成的心轴和两种校准方式：一种是光滑的工作面，另一种是专门设计的工作面，通过在工作面上施加周期性的可变轮廓（代表纵向沟槽），确保在穿孔过程中产生零碎变形。使用 QForm 2D/3D 软件产品中的有限元法进行计算机建模的结果证实了使用工作面上带有纵向凹槽的芯轴提高其耐用性的有效性。实验研究是在 MISIS-130D 型双辊穿孔螺杆轧机上进行的，该轧机配有桶形轧辊和固定尺形式的导向工具。心轴的耐久性是通过目测工作表面质量和确定每次穿孔后 20Kh13 钢制工件的质量变化来评估的。工作结果表明，所有类型心轴的磨损主要是粘着磨损（心轴上有金属粘着和撕裂的痕迹）。20Kh2N4A 钢制心轴的耐久性最好。

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来源期刊

Steel in Translation Materials Science-Materials Science (all)

CiteScore

0.60

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0.00%

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期刊介绍： Steel in Translation is a journal that represents a selection of translated articles from two Russian metallurgical journals: Stal’ and Izvestiya Vysshikh Uchebnykh Zavedenii. Chernaya Metallurgiya . Steel in Translation covers new developments in blast furnaces, steelmaking, rolled products, tubes, and metal manufacturing as well as unconventional methods of metallurgy and conservation of resources. Papers in materials science and relevant commercial applications make up a considerable portion of the journal’s contents. There is an emphasis on metal quality and cost effectiveness of metal production and treatment.