The needs for damage-free and fine-scale features with good surface finish have been challenging today’s manufacturing technologies. Laser machining process performed under a flowing water layer is a capable technique to satisfy these requirements with high processing rate and clean cut surface. However, the capability and performance of this process for milling applications have not clearly been understood yet. Therefore, this study aims at enabling an insight into the laser milling process under a flowing water layer. Titanium alloy (Ti-6Al-4V) was employed as a work sample in this study, and a nanosecond pulse laser was used to ablate the material in water. The effects of laser traverse speed and number of scans on geometrical dimensions, surface and subsurface characteristics were experimentally investigated. The results revealed that a deeper milled cavity with a smaller taper angle was achievable by using a slower traverse speed and more number of laser scans. A trade-off between the uniformity and roughness of milled surface was also evidenced under the different laser traverse speeds examined in this study. By comparing to the laser milling of titanium alloy in ambient air, there was no metallurgical change remarkably found in the laser-milled area when the process was carried out in water. In addition, specific energy required to fabricate a laser-milled cavity was about 18 kWs/mm3 for a single scan technique and linearly increased with the number of scans. The findings of this study will advance the understanding of laser ablation in flowing water as well as other liquid-assisted laser machining techniques. The implication of this study will further open wider applications of liquid-assisted laser ablation for a more intricate micro-fabrication with high resolution, high processing rate, and less thermal damage.
The International Journal of Advanced Manufacturing Technology – Springer Journals
Published: Feb 22, 2017
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera