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Technical gazette, Vol. 28 No. 5, 2021.

Original scientific paper

https://doi.org/10.17559/TV-20200925142859

Research of Geometric Accuracy of Circular Holes Machined by Wire EDM Technology

Ľuboslav Straka* ; Faculty of Manufacturing Technologies of the Technical University of Košice with a seat in Prešov, Department of Automobile and Manufacturing Technologies, Štúrova 31, 080 01 Prešov, Slovakia
Ján Piteľ ; Faculty of Manufacturing Technologies of the Technical University of Košice with a seat in Prešov, Department of Industrial Engineering and Informatics, Bayerova 1, 080 01 Prešov, Slovakia
Peter Michalík ; Faculty of Manufacturing Technologies of the Technical University of Košice with a seat in Prešov, Department of Automobile and Manufacturing Technologies, Štúrova 31, 080 01 Prešov, Slovakia

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Abstract

The geometric accuracy of the machined surface after WEDM can generally be understood as complying with the requirements of shape, position, orientation and runout accuracy. Its level is usually quantified by the respective deviations from the nominal value. Even though WEDM technology is one of the most accurate finishing machining technologies, when manufacturing curved shapes or rotational surfaces there are certain deviations from the desired geometric shape or dimension. Therefore, the aim of the applied experimental research was to contribute to the database of existing knowledge, which can clearly define the extent of the influence for a specific combination of workpiece material EN S355J0 and wire electrode material parameters CuZn37 through a clear formulation of individual laws in relation to geometric precision of curved surfaces after WEDM. The subsequent aim was, based on the analysis of the obtained results, to determine the primary causes of the occurrence of geometric deviations, and to propose recommendations for their elimination.

Keywords

circularity; curved surfaces; geometric accuracy; quality; Wire Electrical Discharge Machining (WEDM)

Hrčak ID:

261327

URI

https://hrcak.srce.hr/261327

Publication date:

15.8.2021.

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