Deep-hole axis deviation mechanism of weak stiffness small-diameter single-lip tool in low-frequency vibration-assisted drilling

Shao-min, LI; Haichun, Peng; Chao, Ding; Tang, Hui; Liu, Chunjian

doi:10.1007/s00170-022-10613-5

Cited by 2 publications

(1 citation statement)

References 30 publications

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“…Furthermore, previous research has mainly focused on dry machining and minimal quantity lubrication (MQL) for analyzing chip evacuation mechanisms. When deeper hole machining is required in the context of structural and mechanical components, dry or MQL cooling conditions are ineffective due to heat dissipation issues [32]. Therefore, powerful cooling conditions such as internal coolant are necessary.…”

Section: Introductionmentioning

confidence: 99%

Surface Characteristics and Residual Stress Variation in Semi-Deep Hole Machining of Ti6Al4V ELI with Low-Frequency Vibration-Assisted Drilling

Choe,

Ha,

Kim

et al. 2023

JMMP

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This study examined the impact of vibration-assisted drilling (VAD) on hole quality and residual stress in Ti-6Al-4V ELI (Extra Low Interstitials) material. Ti-6Al-4V ELI possesses excellent mechanical properties but presents challenges in machining, including chip evacuation, burr formation, and elevated cutting temperatures. VAD, particularly low-frequency vibration-assisted drilling (LF-VAD), has been explored as a potential solution to address these issues. The research compares LF-VAD with conventional drilling (CD) under various cutting and cooling conditions. LF-VAD exhibits higher maximum thrust forces under specific conditions, which result in accelerated tool wear. However, it also demonstrates lower RMS (root mean square) forces compared to CD, offering better control over chip formation, reduced burr formation, and improved surface roughness within the hole. Furthermore, LF-VAD generates greater compressive residual stresses on the hole’s inner surface compared to CD, suggesting enhanced fatigue performance. These findings indicate that LF-VAD holds promise for improving the hole’s surface characteristics, fatigue life, and overall component durability in Ti-6Al-4V machining applications.

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Section: Introductionmentioning

confidence: 99%

Surface Characteristics and Residual Stress Variation in Semi-Deep Hole Machining of Ti6Al4V ELI with Low-Frequency Vibration-Assisted Drilling

Choe,

Ha,

Kim

et al. 2023

JMMP

View full text Add to dashboard Cite

show abstract

Effect of Vibration-Assisted Drilling on Hole Quality and Residual-Stress Variation during Deep-Hole Machining of Ti6Al4V

Choe,

Ha,

Kim

et al. 2023

Preprint

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This study examined the impact of Vibration-Assisted Drilling (VAD) on hole quality and residual stress in Ti-6Al-4V ELI material. Ti-6Al-4V ELI possesses excellent mechanical properties but presents challenges in machining, including chip evacuation, burr formation, and elevated cutting temperatures. VAD, particularly Low-Frequency Vibration-Assisted Drilling (LF-VAD), has been explored as a potential solution to address these issues. The research com-pares LF-VAD with conventional drilling (CD) under various cutting and cooling conditions. LF-VAD exhibits higher maximum cutting forces under specific conditions, which result in accel-erated tool wear. However, it also demonstrates lower RMS (Root Mean Square) forces com-pared to CD, offering better control over chip formation, reduced burr formation, and improved surface roughness within the hole. Furthermore, LF-VAD generates greater compressive residual stresses on the hole's inner surface compared to CD, suggesting enhanced fatigue performance. These findings indicate that LF-VAD holds promise for improving hole quality, fatigue life, and overall component durability in Ti-6Al-4V machining applications.

show abstract

Deep-hole axis deviation mechanism of weak stiffness small-diameter single-lip tool in low-frequency vibration-assisted drilling

Cited by 2 publications

References 30 publications

Surface Characteristics and Residual Stress Variation in Semi-Deep Hole Machining of Ti6Al4V ELI with Low-Frequency Vibration-Assisted Drilling

Surface Characteristics and Residual Stress Variation in Semi-Deep Hole Machining of Ti6Al4V ELI with Low-Frequency Vibration-Assisted Drilling

Effect of Vibration-Assisted Drilling on Hole Quality and Residual-Stress Variation during Deep-Hole Machining of Ti6Al4V

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