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Experimental study of effect of surface roughness of blank diameter on external threads

机译:毛坯直径表面粗糙度对外螺纹影响的实验研究

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This paper presents the effect of surface roughness of blank diameter on external threading when it is manufactured by thread rolling process on Sup 9A material. Sup 9A is a spring steel which is used in manufacturing of Stabiliser Bar of automobile. The work has been carried out at M/s. NHK Springs India Pvt Ltd., Malanpur on Paraga Hydraulic Circular Dies Thread Rolling Machine using HSS die and Sup 9A work piece. The effect of surface roughness of blank diameter has been studied on dimensions of threads. The results indicate that the surface roughness affect significantly the dimensions of threads, pitch circle diameter decreases when surface roughness increases and vice versa.
机译:本文介绍了在Sup 9A材料上通过滚丝工艺制造毛坯直径的表面粗糙度对外螺纹的影响。 Sup 9A是一种弹簧钢,用于制造汽车的稳定杆。该工作已按M / s进行。 NHK Springs India Pvt Ltd.,Malanpur在使用HSS模具和Sup 9A工件的Paraga液压圆模螺纹滚丝机上。研究了毛坯直径的表面粗糙度对螺纹尺寸的影响。结果表明,表面粗糙度显着影响螺纹尺寸,当表面粗糙度增加时,节圆直径减小,反之亦然。

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