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Removal of Surface Spatter and Recast layer by Chemical Cleaning
Materials Today: Proceedings, 2019Abstract Laser microdrilling has various applications in aerospace and electrical industries in manufacturing components such as nozzle guide vanes, combustion chambers, cooling holes on turbine blades, etc. In this study, cleaning of laser micro-drilled holes has been carried out. These holes were drilled using nanosecond pulsed fiber laser.
Ganesh Dongre +4 more
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Electrolytic removal of recast layers on micro-EDM microstructure surfaces
The International Journal of Advanced Manufacturing Technology, 2020Micro-EDM technology is widely used in the field of micro-fabrication due to its low cost, non-contact, and other processing characteristics. The EDM method involves molding parts by implementing the principle of melting metal at a high temperature, which results in a thin recast layer on the surface of the workpiece.
Xuyang Chu +5 more
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Recast layer removal using ultrafast laser in titanium alloy
The International Journal of Advanced Manufacturing Technology, 2013Recast layer, which has undesirable effects on the fatigue resistance and service life of components and microstructures, has been observed and analyzed from the points of surface morphology and internal microstructure by three test methods including scanning electron microscopy, metallographic corrosion analysis, and transmission electron microscopy ...
Chengjuan Yang +4 more
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Investigations Into the Removal of EDM Recast Layer With Magnetic Abrasive Machining
Volume 1: Processing, 2015Electrical Discharge Machining (EDM) is a non conventional machining process capable of accurately machining parts with high hardness and of complex shapes. The sparks produced during the EDM process cause localized melting on the work surface. The formation of recast layer is very common on EDMed surfaces.
Sehijpal Singh Khangura +3 more
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Journal of Materials Engineering and Performance, 2017
In this study, electrical discharge machining (EDM) is used to directly drill normal effusion cooling holes in thermal-barrier-coated nickel-based superalloys (TBCs) via the assisting electrode method. The formation of the conductive layer was studied using scanning electron microscopy and energy-dispersive spectroscopy.
Li Wang, Yongfeng Guo, Guowei Zhang
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In this study, electrical discharge machining (EDM) is used to directly drill normal effusion cooling holes in thermal-barrier-coated nickel-based superalloys (TBCs) via the assisting electrode method. The formation of the conductive layer was studied using scanning electron microscopy and energy-dispersive spectroscopy.
Li Wang, Yongfeng Guo, Guowei Zhang
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Effect of temporally modulated pulse on reducing recast layer in laser drilling
The International Journal of Advanced Manufacturing Technology, 2016Temporally modulated-pulse laser is a promising technique; it has many advantages compared with normal pulse laser. The modulated pulse studied in this work was comprised of a wide pre-heating pulse front and a sharp pulse trail. The experiments were carried out mainly to study the influence of pre-heating subpulse energy and duration, while the trail ...
Wenqiang Duan +6 more
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Electrochemical corrosion assisted laser drilling of micro-hole without recast layer
Optik, 2020Abstract High-power pulsed laser is an efficient tool for drilling micro-holes on metal, but due to the melt ejection dominated material removal mechanism, recast layer can hardly be avoided. This paper proposes to use electrochemical corrosion as a kind of postprocessing technique to remove the laser induced recast layer.
Wenqiang Duan +5 more
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The experimental study on recast layer removal of metallic material by femtosecond laser
PICALO 2010: 4th Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication, 2010The microcracks and impurities in the recast layer have undesirable effects on the fatigue resistance and service life of metallic parts. In order to overcome the drawbacks, a new method of recast layer removal based on the advanced femtosecond laser process technology is proposed in this paper.
Yang Cheng-juan +5 more
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Correlation of surface roughness and recast layer thickness in electrical discharge machining
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 2015Electrical discharge machining (EDM) is an extensively used method in the machining of electrically conductive materials. Recast or white layer formation is undesirable, but inevitable, result of EDM and needs to be understood and accurately determined to efficiently perform post-treatment processes for removing the recast layer caused by EDM process.
Yildiz Y. +3 more
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Materials and Manufacturing Processes, 2020
The alternative dielectrics like vegetable oils, emulsions, and different organic solutions have captured the emerging research attentions, and few pieces of literature also discussed about their p...
Shirsendu Das +2 more
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The alternative dielectrics like vegetable oils, emulsions, and different organic solutions have captured the emerging research attentions, and few pieces of literature also discussed about their p...
Shirsendu Das +2 more
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