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http://dx.doi.org/10.15207/JKCS.2018.9.11.277

A study on the test workpiece for accuracy analysis of multi-axis turning and milling center  

Shin, Jae-Hun (Department of Mechanical Engineering, Graduate School, Daegu University)
Kim, Hong-Seok (Division of Mechanical Engineering, Daegu University)
Youn, Jae-Woong (Division of Mechanical Engineering, Daegu University)
Publication Information
Journal of the Korea Convergence Society / v.9, no.11, 2018 , pp. 277-284 More about this Journal
Abstract
Recently, the demand for precision machining through multi-axis machining has been greatly increased. However, it is difficult to evaluate the geometrical accuracy of the machine tool because of its complicated geometric relationship. In this study, we organized the KS/ISO specifications which are distributed in various regulations, and re-organized the geometrical precision evaluation items of multi-axis machine tools. In addition, a test workpiece was proposed to evaluate and analyze the accuracy of a multi-axis machine tool, and a test workpiece was machined according to predetermined methods and procedures, and then the machined surfaces were measured using CMM. As a result, it was verified that the machining results of the standard workpiece and the precision of the machine tool were very similar qualitatively and quantitatively. From these results, it can be confirmed that the precision analysis of the multi-axis machine tool is possible only by machining the test workpiece.
Keywords
Multi-axis machine tool; Test workpiece; Geometrical error; Accuracy evaluation;
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