Prediction of Surface Roughness based on the Machining Conditions with the Effect of Machining Stability

• Autorzy: Lin Yung-Chih , Chen You-Chen , Wu Kung-Da , Hung Jui-Pin

Identyfikatory

DOI

10.12913/22998624/119048

• Języki publikacji: EN

Abstrakty

EN

This study was aimed at analyzing the influence of the cutting parameters (spindle speed, feed rate and cutting depth) on the surface roughness of the machined parts with the influence of the machining stability of the cutter. In order to consider the chattering effect, the machining stabilities were calculated based on the measured tool tip frequency response functions. A series of machining tests were conducted on aluminum workpieces under different cutting parameters. Then, the surface roughness prediction models in the form of nonlinear quadratic and power-law functions were established based on the multivariable regression method, in which the input parameters, cutting depth and spindle speed, were respectively defined in the stable and unstable regions, according to the stability lobes diagram. The current results show that both models built with the cutting parameters defined in stable regions demonstrate higher prediction accuracy of the surface roughness, about 90%, when compared with the models defined in full regions with the accuracy of about 80%. In particular, the power-law model is proven to have 90% prediction accuracy when validated with the cutting parameters in a stable region. As a conclusion, the mathematical models based on the cutting parameters with well-defined machining stability were proven to show more accurate prediction ability of the surface roughness. It could be expected that the prediction model can further be applied to optimize the machining conditions in low speed roughing and high speed finishing process with desirable surface quality.

Słowa kluczowe

EN

machining conditions; machining stability; regression analysis; surface roughness

PL

warunki obróbki; stabilność obróbki; analiza regresji; chropowatość powierzchni

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2020
• Tom: Vol. 14, no 2
• Strony: 171--183
• Opis fizyczny: Bibliogr. 27 poz., fig., tab.

Twórcy

autor

Lin Yung-Chih

• Graduate Institute of Precision Manufacturing Technology, National Chin-Yi University of Technology, Taichung 41170, Taiwan
• Intelligent Machinery Technology Center, Industry Technology Research Institute, Central Region Campus, Taichung 54041, Taiwan

autor

Chen You-Chen

• Graduate Institute of Precision Manufacturing Technology, National Chin-Yi University of Technology, Taichung 41170, Taiwan

autor

Wu Kung-Da

• Graduate Institute of Precision Manufacturing Technology, National Chin-Yi University of Technology, Taichung 41170, Taiwan

autor

Hung Jui-Pin

• Graduate Institute of Precision Manufacturing Technology, National Chin-Yi University of Technology, Taichung 41170, Taiwan

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).