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Review on role of electrical discharge drilling methods in fabricating micro holes: formation mechanism, defects characterization and mitigation strategies
Electrical discharge drilling (EDD), a non-contact manufacturing technology that brings the potential to fabricate microholes at low cost and relatively high efficiency, has aroused extensive attention at home and abroad. However, the surface/subsurface defects and forming accuracy inherited from the EDD process can significantly impede the mechanical properties and weaken the usage performance of as-micro holes parts and components, probably challenging this process’s reliability and reproducibility. The advancement of simulated technique and characterization detection currently opens up a more a more intuitive and deeper research of micro holes machined by the EDD process. Given that, the paper systematically states the material removal mechanism, debris escaping path, surface/subsurface defects formation, mitigation strategies and improved measures of micro holes fabricated by the EDD process. Consequently, based on current limitations and challenges, hybrid process and theoretical breakthrough play a significant role in future research on the microhole fabricated by the EDD process.
Review on role of electrical discharge drilling methods in fabricating micro holes: formation mechanism, defects characterization and mitigation strategies
Electrical discharge drilling (EDD), a non-contact manufacturing technology that brings the potential to fabricate microholes at low cost and relatively high efficiency, has aroused extensive attention at home and abroad. However, the surface/subsurface defects and forming accuracy inherited from the EDD process can significantly impede the mechanical properties and weaken the usage performance of as-micro holes parts and components, probably challenging this process’s reliability and reproducibility. The advancement of simulated technique and characterization detection currently opens up a more a more intuitive and deeper research of micro holes machined by the EDD process. Given that, the paper systematically states the material removal mechanism, debris escaping path, surface/subsurface defects formation, mitigation strategies and improved measures of micro holes fabricated by the EDD process. Consequently, based on current limitations and challenges, hybrid process and theoretical breakthrough play a significant role in future research on the microhole fabricated by the EDD process.
Review on role of electrical discharge drilling methods in fabricating micro holes: formation mechanism, defects characterization and mitigation strategies
Arch. Civ. Mech. Eng.
Sun, Yao (author) / Sun, Yirong (author) / Junyi, Dong (author) / Yin, Jun (author) / Li, Sihui (author) / Gong, Siqian (author) / Sun, Mingsheng (author) / Liu, Ming (author) / Li, Xiang (author)
2024-05-06
Article (Journal)
Electronic Resource
English
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