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- W4283204721 abstract "Abstract Micro-milling is extremely paramount to fabricating micro-scaled components , requiring high quality and low setup cost. However, with the stiffness of low micro-milling systems, the uncontrolled surface and vulnerable wearing tools must be addressed to achieve ultra-precision processing for the thin-wall microstructure . This paper explored the mechanism of surface formation based on dual-direction vibration-assisted micro-milling , and verifies the effectiveness in back chipping, analyzing the impact on chips and tool life-lengthening effect. Initially, an active vibration-assisted signal was added to the feed direction, considering the impact on surface integrity and qualit y, a nd the integrity and quality of the machined surface model were examined. Furthermore, two groups of experiments assessing the micro-milling Co41Cr16Ni15 alloy were carried out , comparatively with conventional micro-milling, analyzing the effect of the vibration-assisted device on surface integrity and quality , and a deterministic vibration-assisted micro-milling system was established. Finally, the effects of vibration assistance on surface topography, chip topography and micro-milling tool runout were determined. As a result, vibration assistance improved the micro-step structure on both sides of the thin-wall microstructure surface caused by tool eccentricity, and changed the surface morphology of the groove bottom. The experiment results showed that the form deviation of the vibration-assisted micro-milling surface was less than 101 nm SPV and surface roughness was also below 25 nm RMS. Surface formation mechanism based on the vibration-assisted micro-milling system was explored to reveal that vibration assistance improves surface integrity and quality , and sharply reduces the tool’s runout rate." @default.
- W4283204721 created "2022-06-22" @default.
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- W4283204721 date "2022-06-21" @default.
- W4283204721 modified "2023-09-30" @default.
- W4283204721 title "Mechanism of dual-direction vibration-assisted (DVA) micro-milling in surface formation considering the tool life-lengthening effect on the Co41Cr16Ni15 alloy: design and experiment" @default.
- W4283204721 doi "https://doi.org/10.21203/rs.3.rs-1699049/v1" @default.
- W4283204721 hasPublicationYear "2022" @default.
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