Impact of the toolholder hardness on the quality of part produced during the turning process
3 years ago
Authors:
Thạch Ngọc Phúc,t,t,t,t,t
Publication date:
31 / 03 / 2020
Name of Publishers:
International Journal of Latest Engineering Research and Applications (IJLERA)
Abstract:
Abstract: This research studies cutting toolholdersthat have hardness varyingbetween 40 and 60 HRC. Workpiecescomposed of C10, C30, and C45 steel were used for the experiment. The measurement of the surface roughness shows that with soft steel such as C10, the higher the toolholder hardness, the better the surface quality. In particular, when the toolholder hardness increases from 40 to 60 HRC, the roughness reduces from 25.96 to 16.40 µm. With a harder workpiece, the influence of the damping function on the toolholder appears. The result shows that the hardness of 50 HRC is the best value for the turning process, which will reduce the roughness to 20.86 and 17.90 µm for the C30 and C45 workpieces, respectively. The main reason for this is the combination of damping parameterssuch as mass, spring, and hardness of the toolholder. Keywords: turning process, toolholder, hardness, surface roughness, metal cutting, vibration