In this study, the surface roughness (Ra) and vibration (Vib) during finish turning of AISI 4140 (52HRc) steel workpiece under cooling method were investigated as experimental and statistical. Taguchi method was used in statistical investigation of obtained data from the finish turning experiments. As cutting parameters, cutting speed: 160, 200, 240 and 280m/min, feed rate: 0.08 and 0.16mm/rev, depth of cut: 0.15 and 0.3mm, and cooling method: dry/wet were selected for this experimental study. Vibration values during finish turning of steel workpiece were collected online by accelerometers and Ra measurement device was used to obtain the Ra values. Optimum Ra and Vib values were obtained in finish turning of this workpiece. The cutting parameters determined for optimum Ra values were obtained as 0.08mm/rev of feed rate, 200m/min of cutting speed, wet turning process of cooling method, and 0.30mm of depth of cut. Optimum Vib values were obtained as 0.08mm/rev, 240m/min, dry turning and 0.15mm. Experimental results for the lowest Ra and Vib were found as 0.219μm and 0.003463gRMS. The predicted values for the Ra and the Vib were 0.222μm and 0.003328gRMS, respectively.

中文翻译：

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冷却法下AISI 4140钢工件精车加工表面粗糙度和振动的试验与统计调查

在本研究中，表面粗糙度（R一种) 和振动 (Vib) 在 AISI 4140 (52HRc)钢工件在冷却方法下进行了实验和统计研究。田口方法用于对精车实验获得的数据进行统计调查。作为切割参数，切割速度：160、200、240和280m/min，进给速度：0.08 和 0.16毫米/转，切削深度：0.15 和 0.3mm，冷却方法：本实验研究选择干法/湿法。采用加速度计在线采集钢件精车时的振动值，R一种测量装置用于获得R一种价值观。最佳R一种和 Vib 值是在该工件的精车中获得的。最佳切削参数R一种获得的值为 0.08进给速度毫米/转，200切削速度m/min，冷却方式湿车加工，0.30切削深度 mm。最佳 Vib 值为 0.08毫米/转，240m/min，干车削和 0.15毫米。最低的实验结果R一种和 Vib 被发现为 0.219μm 和 0.003463gRMS。的预测值R一种Vib 为 0.222μm 和 0.003328gRMS，分别。