A Study on the Parameters in Hard Turning of High Speed Steel

International Journal of Materials Forming and Machining Processes Pub Date : 2018-07-01 DOI:10.4018/IJMFMP.2018070101

Krishnaraj Vijayan, N. Gouthaman, Tamilselvan Rathinam

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引用次数: 1

Abstract

The objectives of hard turning of high speed steel (HSS-M2 Grade) are to investigate the effect of cutting parameters on cutting force, tool wear and surface integrity. This article presents the experimental results of heat treated high speed steel machined in a CNC lathe using cubic boron nitride (CBN) tools. Turing experiments were carried out using central composite design (CCD) method. From the experiments the influence of cutting parameters and their interactions on cutting forces, temperature and surface roughness (Ra) were analyzed. Following this, multi response optimization was done to find the best combination of parameters for minimum force, minimum temperature and minimum surface roughness. The experimental results showed that the most contributing factors were feed followed by depth of cut and spindle speed. A white layer formed during hard turning was also analyzed by scanning electron microscope (SEM) and the results showed that it was greatly influenced by the speed and depth of cut. Tool wear was experiments were conducted at the optimum cutting conditions and it was noted that the tool satisfactorily performed up to 10 minutes at dry condition.

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高速钢硬车削工艺参数的研究

高速钢(HSS-M2级)硬车削的目的是研究切削参数对切削力、刀具磨损和表面完整性的影响。本文介绍了用立方氮化硼刀具在数控车床上加工热处理高速钢的实验结果。采用中心复合设计(CCD)方法进行图灵实验。通过实验分析了切削参数及其相互作用对切削力、温度和表面粗糙度Ra的影响。在此基础上，进行多响应优化，寻找最小力、最小温度和最小表面粗糙度的最佳参数组合。实验结果表明，影响加工精度的主要因素是进给量，其次是切削深度和主轴转速。扫描电镜分析了硬车削过程中形成的白层，结果表明，白层的形成受切削速度和切削深度的影响较大。在最佳切削条件下进行了刀具磨损实验，并注意到刀具在干燥条件下长达10分钟的性能令人满意。

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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International Journal of Materials Forming and Machining Processes

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