A Comparative Study of Lubrication Performance for Bs 080M46 Medium Carbon Steel Using Ring Compression Test and Finite Element Simulation

Key Engineering Materials Pub Date : 2024-02-09 DOI:10.4028/p-4n5lyd

Raschanan Poungprasert, Nattarawee Siripath, S. Suranuntchai

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Abstract

This study investigates the impact of lubrication on friction factors during the hot ring compression test of BS 080M46 medium carbon steel. Hot forging processes are crucial in industries due to the strength and durability of forged products, but friction-related issues can arise. Four lubrication conditions are focused: dry, oil to black graphite, water to black graphite, and water to colorless graphite. The ring compression test procedure, including sample dimensions and lubrication application, is explained. By employing predictive calibration curves generated through FEM which monitored height and internal diameter changes during compression. The study successfully aligns FEM simulation results with experimental data, thereby enhancing the accuracy of friction factor estimations and visualizing material behavior under various lubrication conditions. Results indicate that lubrication significantly affects friction factors, with oil to black graphite performing the best, yielding a friction factor of 0.15. A comparison between theoretical and experimental friction factors shows varying agreement levels, with water-to-black graphite, and water-to-colorless graphite respectively demonstrating excellent alignment with 0.990% and 0.971%. This study has practical implications for selecting lubricants in industrial applications, potentially enhancing manufacturing processes and product quality.

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利用环压试验和有限元模拟对 Bs 080M46 中碳钢的润滑性能进行比较研究

本研究调查了 BS 080M46 中碳钢热环压缩试验过程中润滑对摩擦因素的影响。由于锻造产品的强度和耐用性，热锻工艺在工业中至关重要，但也可能出现与摩擦相关的问题。重点研究了四种润滑条件：干燥、油与黑色石墨、水与黑色石墨以及水与无色石墨。对环压测试程序进行了说明，包括样品尺寸和润滑应用。通过使用有限元生成的预测校准曲线来监测压缩过程中的高度和内径变化。该研究成功地将有限元模拟结果与实验数据进行了比对，从而提高了摩擦因数估算的准确性，并使各种润滑条件下的材料行为可视化。结果表明，润滑对摩擦因数有很大影响，其中油与黑石墨的摩擦因数为 0.15，表现最佳。理论摩擦因数与实验摩擦因数的比较显示出不同的吻合程度，水对黑石墨和水对无色石墨的吻合程度分别为 0.990% 和 0.971%。这项研究对在工业应用中选择润滑油具有实际意义，有可能改进制造工艺和产品质量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Key Engineering Materials

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