Increasing the efficiency of material removal using dual laser micromachining
A continuous wave melting laser combined with a nanosecond ejection laser has been shown to improve the material removal efficiency by a factor of 2 to 8 compared with laser ablation processes reported in the literature. The decrease in the energy required for the combined lasers is primarily due to...
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| Veröffentlicht in: | International journal of advanced manufacturing technology 2020-04, Vol.107 (9-10), p.3995-4007 |
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| container_title | International journal of advanced manufacturing technology |
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| creator | Alkhawaldeh, Osama Coupland, Jeremy Jones, Lewis C. R. |
| description | A continuous wave melting laser combined with a nanosecond ejection laser has been shown to improve the material removal efficiency by a factor of 2 to 8 compared with laser ablation processes reported in the literature. The decrease in the energy required for the combined lasers is primarily due to the optimisation of the irradiation time in the melting process, which is responsible for the majority of the total energy. For the laser used in this study, the optimal interaction time corresponding to the highest melting efficiency was found at 9-ms melting time, and this value is compared with results derived from a one-dimensional heating model. Metallurgical images of only melting and the produced hole after introducing the ejection pulse for the most efficient melting were presented as evidence of melt ejection. The results show that approximately 90% of the melt pool is ejected with little redeposited material at the periphery of the hole. |
| doi_str_mv | 10.1007/s00170-020-05250-9 |
| format | Article |
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| subjects | CAE) and Design Computer-Aided Engineering (CAD Continuous radiation Efficiency Ejection Engineering Industrial and Production Engineering Laser ablation Laser machining Lasers Mechanical Engineering Media Management Melting Metallurgy Micromachining Optimization Original Article |
| title | Increasing the efficiency of material removal using dual laser micromachining |
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