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Mathematical models of the influence of cutting speed on Ra parameter

Jędrzejczyk Dariusz, Mikołajczyk Jarosław Robert

Developments in Mechanical Engineering

2022

nr 18(10)

115--129

The paper presents the influence of the cutting speed (by changing the spindle rotational speed) on the change of Ra parameter value. For this relationship, mathematical models were built in R software [1÷4, 6÷17] and their usefulness was determined.

Determination of the thickness of anodized layer on the basis mathematical models

Anna Piochacz, Mikołajczyk Jarosław Robert

Developments in Mechanical Engineering

2020

nr 16(8)

31--39

The process of aluminium surface anodizing carries many variable factors that can be influenced to optimize this process. Efforts to obtain surfaces resistant to corrosion are desirable and always valid. The paper presents preliminary studies on the influence to selected parameters of the anodizing process on the thickness of the anodic coating obtained. On the basis of obtained test results, implemented into R software [1-20], appropriate models were built from which one, the most adequate model, was selected.