Accuracy Examination of Hole Machining Methods

Ráczi, Viktor Gergely and Mikó, Balázs (2025) Accuracy Examination of Hole Machining Methods. ACTA MATERIALIA TRANSYLVANICA (EN), 8 (2). pp. 88-95. ISSN 2601-8799

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Abstract

The geometric accuracy and surface quality of hole machining processes are fundamentally important for the operational reliability of manufactured components, as supported by the literature review. The aim of this research was to compare the geometric and surface characteristics of circular pockets produced by three different machining methods: turning, boring, and milling. During the investigations, coordinate measuring machine (CMM) and surface roughness measurement methods were applied, and the results were evaluated using the Taguchi method, signal-to-noise (S/N) ratio analysis, and weighted scoring assessment. Based on the results, boring proved to be the most favorable method in terms of geometric accuracy, while milling yielded better surface roughness values. The findings of this research can support the selection of appropri ate pre-production machining technologies and contribute to the optimization of manufacturing processes.

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