Smelting process and machinability of BN-type free cutting steel

WANG Yu-nan; BAO Yan-ping; WANG Min; ZHANG Le-chen

doi:10.13374/j.issn1001-053x.2013.07.015

Volume 35 Issue 7

Jul. 2021

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WANG Yu-nan, BAO Yan-ping, WANG Min, ZHANG Le-chen. Smelting process and machinability of BN-type free cutting steel[J]. Chinese Journal of Engineering, 2013, 35(7): 869-874. doi: 10.13374/j.issn1001-053x.2013.07.015

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WANG Yu-nan, BAO Yan-ping, WANG Min, ZHANG Le-chen. Smelting process and machinability of BN-type free cutting steel[J]. Chinese Journal of Engineering, 2013, 35(7): 869-874. doi: 10.13374/j.issn1001-053x.2013.07.015

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Smelting process and machinability of BN-type free cutting steel

doi: 10.13374/j.issn1001-053x.2013.07.015

1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China;
2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2012-07-05

Abstract

Abstract

This article studied the smelting process and machinability of BN-type free cutting steel. Samples with different B and N contents were prepared by cold crucible induction melting. The precipitation of main inclusions in sample was investigated by theoretical calculation. After that, the morphology, size and composition of BN type inclusions were analyzed. The mechanical test and machining test of the samples were carried out. It is found that adding B and N elements into steel can improve the machinability of the steel, but do not affect the mechanical properties.
- free cutting steel,
- steelmaking,
- machinability,
- boron nitride,
- inclusions