Abstract
This paper presents a wire breakage prevention method and a corresponding system for reciprocated traveling wire-EDM based on discharge location detection. The wire breakage risk is evaluated using the consecutive discharge concentration coefficient (CDCC) value and the number of arcs. CDCC characterizes the proximity of a sequence of consecutive discharge locations occurring in a short time, which takes both time and spatial domain into consideration. The system employs two fuzzy logic controllers to adjust machining parameters according to the degree of discharge concentration and the servo tracking performance detected. Verifications are conducted by cutting two workpieces with variable heights, including a stair-shaped and a hollow one. The machining tests show that the proposed system can significantly gain machining efficiency without wire breakage hazards.
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Funding
This research is financially supported by the National Natural Science Foundation of China (Grant No. 52075333) and the National Science and Technology Major Project (2018ZX04005001).
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Lingyi Xu: methodology, platform building, data collection, investigation, writing—original draft preparation. Xuecheng Xi: conceptualization, supervision, writing—reviewing and editing. Zilun Li: platform building. Jieyu Ma: data collection. Qiang Gao: data collection. Wansheng Zhao: supervision, writing—reviewing and editing.
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Xu, LY., Xi, XC., Li, ZL. et al. Wire breakage prevention for reciprocated traveling WEDM based on discharge location detection. Int J Adv Manuf Technol 123, 1859–1875 (2022). https://doi.org/10.1007/s00170-022-10240-0
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DOI: https://doi.org/10.1007/s00170-022-10240-0