Journal
OPTICS AND LASER TECHNOLOGY
Volume 106, Issue -, Pages 451-460Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2018.05.003
Keywords
Nd:YAG laser; Laser trepanning; Ultrasonic assistance; Microhole; Nickel super-alloy
Categories
Funding
- Natural Science Foundation of Jiangsu Province, China [BK201613481]
- Jiangsu Provincial Key Program for Science and Technology Support, China [BE2015037]
- University Natural Science Foundation of Jiangsu Province, China [15KJD460002]
- Six Talent Peaks Project in Jiangsu Province, China [2013-ZBZZ-025]
- Project for Modern Agricultural Equipment and Technological Collaborative Innovation Center of Jiangsu Province, China [NZXT01201603]
- Project for Graduate Students Research Innovation of Jiangsu Province, China [KYCX17-1763]
Ask authors/readers for more resources
The ultrasonic vibration was introduced to assist the Nd:YAG laser trepan drilling for improving drilling quality/performance. Effects of ultrasonic power and pulse energy on geometrical and/or metallurgical quality were deciphered for the ultrasonic-assisted Nd:YAG laser trepanning. The energy dispersive spectroscopy analysis was also carried out to reveal the influence of ultrasonic vibration on the elemental compositions of the areas surrounding the drilled microhole entrance. It was shown that the axial ultrasonic vibration coupled into the Nd:YAG laser trepanning process could effectively improve the hole entrance profile/morphology with less metallurgical defects such as microcracks. Moreover, relatively high ultrasonic power was more beneficial to the improvement of laser trepan drilling quality in terms of smaller hole taper angle, thinner recast layer, and less cracks, etc. However, the oxidation of the micro hole sidewall could not be effectively improved by using the ultrasonic assistance. (C) 2018 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available