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首页> 外文期刊>Pomiary Automatyka Kontrola >Ocena chropowato?ci powierzchni 2D i 3D po toczeniu ró?nych materia?ów konstrukcyjnych
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Ocena chropowato?ci powierzchni 2D i 3D po toczeniu ró?nych materia?ów konstrukcyjnych

机译：评估不同建筑材料车削后的2D和3D表面粗糙度

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摘要

W artykule dokonano oceny stanu mikronierówno?ci powierzchni ukszta?towanych w toczeniu ró?nych materia?ów konstrukcyjnych, w tym stali niestopowej C45, stali 1H18N9T i ?eliwa sferoidalnego EN-GJS -500-7. Porównano warto?ci parametrów chropowato?ci 3D oraz ?rednich warto?ci parametrów 2D. Badania chropowato?ci powierzchni uzupe?niono o obserwacje mikroskopowe ?ladów ostrza. Pos?u?y?y one do analizy przyczyn rozbie?no?ci w warto?ciach niektórych parametrów chropowato?ci powierzchni 2D i 3D.%In this paper the turned surfaces generated on different workpiece materials were analyzed and compared using a set of 2D and 3D parameters. Three workpiece materials, i.e. an austenitic stainless 1H18N9T steel, carbon C45 steel and nodular cast iron were machined using coated carbide inserts with the nose radius of r_ε=0.8mm. The turning experiments were conducted at the cutting speed of v_c=250 m/min, the feed rate of f=0.16mm/rev and the depth of cut of a_p=0.4mm. Surface roughness was measured based on the digitally generated surfaces, each of them consisting of 200 parallel surface profiles. In particular, the 3D roughness parameters were compared with adequate 2D parameters, which were calculated as the mean values obtained for all profiles constituting the measured surfaces. Significant differences were revealed for some roughness parameters including Rz and Sz, as well kurtosis (Rku and Sku) and skew (Rsk and Ssk). Particularly, the highest differences were observed for amplitude distribution parameters which can have positive or negative values. Additionally, the measurements were enhanced by light microscopic observations of the generated surfaces including characteristic lays. In particular, some characteristic defects of surfaces were used to explain the differences between 3D and 2D roughness parameters.
机译：该文章评估了各种建筑材料（包括C45非合金钢，1H18N9T钢和EN-GJS -500-7球墨铸铁）在车削时成形的表面的微观不均匀状态。比较了3D粗糙度参数的值和2D参数的平均值。表面粗糙度测试辅以刀片痕迹的显微镜观察。他们被用来分析2D和3D表面粗糙度的一些参数值出现差异的原因。％本文使用一组工具分析和比较了在不同工件材料上产生的车削表面2D和3D参数。三种工件材料，即奥氏体不锈钢1H18N9T钢，碳C45钢和球墨铸铁使用带涂层的硬质合金刀片加工，刀尖半径为r_ε= 0.8mm。车削实验以v_c = 250 m / min的切削速度，f = 0.16mm / re的进给速度和a_p = 0.4mm的切削深度进行。基于数字化生成的表面测量表面粗糙度，每个表面由200个平行的表面轮廓组成。特别是将3D粗糙度参数与适当的2D参数进行比较，将其计算为构成被测表面的所有轮廓的平均值。对于某些粗糙度参数，包括Rz和Sz以及峰度（Rku和Sku）和偏斜（Rsk和Ssk），发现了显着差异。特别地，对于可以具有正值或负值的振幅分布参数，观察到最大差异。此外，通过光学显微镜观察生成的包括特征层的表面，可以增强测量效果。特别是，表面的某些特征性缺陷用于解释3D和2D粗糙度参数之间的差异。

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