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Bartarya, Gaurav
- Experimental Investigations on Ultrasonic Assisted Turning of Inconel 718
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Authors
Affiliations
1 Indian Institute of Technology Bhubaneswar, Bhubaneswar, India., IN
1 Indian Institute of Technology Bhubaneswar, Bhubaneswar, India., IN
Source
Manufacturing Technology Today, Vol 22, No 4 (2023), Pagination: 60-65Abstract
Inconel 718 is widely used in industry due to its excellent mechanical properties, which include high resistance to fatigue load, withstanding the corrosive environment, and creep resistance. However, because of these properties, the turning process is severe on tools and generates a great deal of force to cut. Because ultrasonic vibrations could reduce cutting force and thus damage the tool, ultrasonic-assisted machining was a possible solution to these problems. In this study of ultrasonic-assisted tuning, an ultrasonic linear vibration was applied to the tool in the direction of the cutting velocity in the experimental setup used. The results of the experiments revealed that when ultrasonic vibration was used, the cutting force and chip width were reduced compared to when it was not used. The chip formed had a smoother surface, indicating smooth rubbing with the tool, resulting in a better surface finish.Keywords
Ultrasonic Assisted Turning, Inconel 718, Chip Behaviour.
References
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- Dutta, P., & Bartarya, G. (2021). On the improvement of process performance of hard turning using vibration-assisted machining. Journal of Micromanufacturing, 4(2), 207-215.
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- Xu, Y., Gao, F., Zou, P., Zhang, Q., & Fan, F. (2020). Theoretical and experimental investigations of surface roughness, surface topography, and chip shape in ultrasonic vibration-assisted turning of Inconel 718. Journal of Mechanical Science and Technology, 34(9), 3791-3806.
- Laser transformation hardening of metal sheets under air and water environment
Abstract Views :57 |
PDF Views:1
Authors
Affiliations
1 Indian Institute of Technology Bhubaneswar, Bhubaneswar, India, IN
1 Indian Institute of Technology Bhubaneswar, Bhubaneswar, India, IN
Source
Manufacturing Technology Today, Vol 22, No 3 (2023), Pagination: 1 - 7Abstract
Laser transformation hardening is a type of surface treatment process for localized hardening of material surface with high control on hardening depth. Further, laser hardening is a self-quenching process with high cooling rate. The current study presents the laser transformation hardening of mild steel under dry and wet environments with single and multi-passes, where the wet environment was created by providing a water-jet parallel to the work-piece surface. The main objective is to study the effect of wet environment on the hardness values and hardening depth in the modified zone due to enhanced cooling. Further, the effect of process parameters, like scan speed, laser power and number of passes on the enhancement of the hardness is also studied. Results indicate significant improvement in the micro-hardness of the treated surface in a water environment under both single and multi-pass conditions.Keywords
Laser Surface Treatment, Transformation Hardening, Water Environment, Mild Steel, Micro-Hardness.References
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