Leksycki Kamil, Feldshtein Eugene, Królczyk Grzegorz M, Legutko Stanisław
Institute of Mechanical Engineering, University of Zielona Gora, 4 Prof. Z. Szafrana Street, 65-516 Zielona Gora, Poland.
Department of Manufacturing Engineering and Production Automation, Opole University of Technology, 76, Proszkowska Street, 45-758 Opole, Poland.
Materials (Basel). 2020 May 9;13(9):2188. doi: 10.3390/ma13092188.
This study describes the surface topography of the 17-4 PH stainless steel machined under dry, wet and near-dry cutting conditions. Cutting speeds of 150-500 m/min, feeds of 0.05-0.4 mm/rev and 0.5 mm depth of cutting were applied. The research was based on the 'parameter space investigation' method. Surface roughness parameters, contour maps and material participation curves were analysed using the optical Sensofar S Neox 3D profilometer and the effect of feed, cutting speed and their mutual interaction was noticed. Changes in chip shape depending on the processing conditions are shown. Compared to dry machining, a reduction of , and parameters of 38-48% was achieved for near-dry condition. For lower feeds and average cutting speeds valleys and ridges were observed on the surface machined under dry, wet and near-dry conditions. For higher feeds and middle and higher cutting speeds, deep valleys and high ridges were observed on the surface. Depending on the processing conditions, different textures of the machined surface were registered, particularly anisotropic mixed, periodic and periodically determined. In the range of 0.4-0.8 μm for dry and wet conditions the surface isotropy is ~20%, under near-dry conditions it is ~60%.
本研究描述了17-4 PH不锈钢在干切削、湿切削和准干切削条件下加工后的表面形貌。切削速度为150 - 500 m/min，进给量为0.05 - 0.4 mm/rev，切削深度为0.5 mm。该研究基于“参数空间研究”方法。使用光学Sensofar S Neox 3D轮廓仪分析了表面粗糙度参数、等高线图和材料参与曲线，并注意到进给量、切削速度及其相互作用的影响。展示了切屑形状随加工条件的变化。与干切削相比，准干切削条件下 、 和 参数降低了38 - 48%。对于较低的进给量和平均切削速度，在干切削、湿切削和准干切削条件下加工的表面上观察到了山谷和山脊状。对于较高的进给量以及中等和较高的切削速度，在表面上观察到了深谷和高脊。根据加工条件，记录了加工表面的不同纹理，特别是各向异性混合、周期性和周期性确定的纹理。在干切削和湿切削条件下，表面各向同性在0.4 - 0.8 μm范围内约为20%，在准干切削条件下约为60%。
