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2 Advances in Science and Technology. Research Journal

2 2021

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Statistical Testing of Milled Objects on Numerically Controlled Three-Axis Milling Machines

Piórkowski Paweł, Skoczyński Wacław

Advances in Science and Technology. Research Journal

2021

Vol. 15, no 1

283--289

Statistical studies of the surface distribution of milled workpieces and the possibility of their use for operationbased tests and machine tool evaluation were presented. In the first part of the paper, the assumptions and scope of statistical research were defined and the method of obtaining data on machined surfaces directly from machining programs was described. In the following part of the article, the results of the research consisting in determining the probability of machining operations in the working space of a numerically controlled milling machine were presented on the example of machining programs designed for implementation on the DMC 1035V Ecoline vertical machining centre. The knowledge of the load distribution in the working space of a milling machine associated with the machining process can be used to design and manufacture the test pieces reflecting the machining tasks performed on the milling machine and to develop appropriate acceptance and evaluation procedures.

Evaluation of Milling Machine Properties Based on Shape Errors

Piórkowski Paweł, Skoczyński Wacław

Advances in Science and Technology. Research Journal

2021

Vol. 15, no 2

148--155

A procedure for assessing the properties of a milling machine based on machining tests was presented, with particular emphasis on shape errors and properties of the workpiece surface layer. The selection of an appropriate test-piece and cutting parameters for such a test was discussed. A mathematical formula was also presented, which allows to associate the accuracy of the test-piece with that of the milling machine. The proposed test procedure was verified by evaluating the DMC 1035V Ecoline vertical machining centre.