Abstract
This chapter introduces the time dependent plasma/plume dynamics inside the keyhole during laser welding. Mathematical models of the transient high-speed plasma/plume dynamics based on compressible Euler flow assumptions are given. Characteristics of the time dependent plasma/plume behaviors such as uneven distribution, multiple flow directions, strong oscillations and local evaporations at keyhole wall are found and discussed by numerical simulations.
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Notes
- 1.
1 atm = 101.325 kPa.
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Gong, S., Pang, S., Wang, H., Zhang, L. (2021). Dynamic Behaviors of Metal Vapor/Plasma Plume Inside Transient Keyhole. In: Weld Pool Dynamics in Deep Penetration Laser Welding. Springer, Singapore. https://doi.org/10.1007/978-981-16-0788-2_5
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DOI: https://doi.org/10.1007/978-981-16-0788-2_5
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Publisher Name: Springer, Singapore
Print ISBN: 978-981-16-0787-5
Online ISBN: 978-981-16-0788-2
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