PT  - JOURNAL ARTICLE
AU  - Timárová, Ľudmila
AU  - Breznická, Alena
AU  - Kopiláková, Beáta
TI  - Application of the Method of Planned Experiment for the Evaluation of the Surface Roughness Parameter Ra
DP  - 2023 Jul 5
TA  - Manufacturing Technology Journal
PG  - 348--353
VI  - 23
IP  - 3
AID - 10.21062/mft.2023.043
IS  - 12132489
AB  - The basic process of acquiring new knowledge is trial/experiment. We can define an experiment as a certain process that we prepare, organize and plan in order to know the object under investigation. Each experiment requires a multifaceted activity associated with professional knowledge, preparation of material security, espe-cially security with measuring devices and measurement methods for determining the correct (objective) measured values. Planning experiments and analyzing the obtained results are important stages in revealing the nature and course of the technological process. With the planned experiment, we try to create such con-ditions that the range of experiments is as small as possible, but the volume and form of information are of the highest quality. The article presents the method of the planned experiment and its use in industrial prac-tice. The mentioned methodology of the planned experiment is applied to the calculation of the mean arith-metic value of the surface roughness Ra depending on the cutting parameters. The advantage of this method is that it increases the accuracy of the obtained results, but mainly reduces the number of performed at-tempts.