Modelling and prediction of surface textures after abrasive machining processes: A review

Pawlus, Paweł; Reizer, Rafał; Królczyk, Grzegorz M.

doi:10.1016/j.measurement.2023.113337

Cited by 7 publications

(1 citation statement)

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“…Surface quality plays a fundamental role in the contemporary manufacturing industry due to the profound impact of texture parameters, not only on the dimensional accuracy of precision machined parts but also on the tribological and wear properties of the surface [1,2], which in turn can directly regulate the service life of produced components [3]. Thoughmany researchers usually characterize surface quality based on the most fundamental 2D or 3D roughness parameters, e.g., Ra, Rz or Sa and Sz, surface profiles are toocomplex to be sufficiently described by only a small numberof such parameters [4,5].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Feasibility of the Prediction of the Surface Morphologiesof AWJ-Milled Pockets by Statistical Methods Based on Multiple Roughness Indicators

Karkalos,

Thangaraj,

Karmiris-Obratański

2024

Surfaces

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Improvement of the surface quality of machined parts is essential in order to avoid excessive and costly post-processing. Although non-conventional processes can efficiently carry out the machining of difficult-to-cut materials with high productivity, they may also, for various reasons, be related to increased surface roughness. In order to optimize the surface quality of generated surfaces in a reliable way, surface profiles obtained during these processes must be adequately modeled. However, given that most studies have focused on Ra or Rz indicators or are based on the assumption of a normal distribution for the profile heights, relevant models cannot accurately represent the surface characteristics that exist in a real machined surface with a high degree of accuracy. Thus, in the present study, a new modeling approach based on the use of a statistical probability distribution for the surface profile height is proposed. After six different distributions were evaluated on the basis of a three-stage procedure involving different roughness indicators pertaining to the abrasive waterjet (AWJ) milling of pockets, it was found that, although it is not possible to model the nominal values of every roughness parameter simultaneously, in several cases, it is possible to approximate the values of critical indicators such as Ra, Rz, Rsk, Rku and Rp/Rv ratio by Weibull distribution with a sufficient degree of accuracy.

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