Results 31 to 40 of about 59,140 (302)

In-Situ Depth Measurement of Laser Micromachining

open access: yesPhotonics, 2021
Precision laser micromachining plays an important role in the biomedical, electronics, and material processing industries. During laser drilling, precision depth detection with micrometer-level resolution is required, particularly with blind-hole or ...
Xiaoming Chen   +4 more
doaj   +1 more source

Investigation of effect of CO2 laser parameters on drilling characteristics of rocks encountered during mining

open access: yesJournal of King Saud University: Engineering Sciences, 2019
Application of laser technology for drilling rock samples reduces mining costs because of its higher transmission capabilities providing an alternative to conventional drill bits and blasting techniques.
A. Bharatish   +3 more
doaj   +1 more source

Feasibility study of a hand guided robotic drill for cochleostomy [PDF]

open access: yes, 2014
The concept of a hand guided robotic drill has been inspired by an automated, arm supported robotic drill recently applied in clinical practice to produce cochleostomies without penetrating the endosteum ready for inserting cochlear electrodes. The smart
Brett, P   +5 more
core   +6 more sources

High yield fabrication process for 3D-stacked ultra-thin chip packages using photo-definable polyimide and symmetry in packages [PDF]

open access: yes, 2014
Getting output of multiple chips within the volume of a single chip is the driving force behind development of this novel 3D integration technology, which has a broad range of industrial and medical electronic applications. This goal is achieved in a two-
Cauwe, Maarten   +4 more
core   +3 more sources

Temperature monitoring with a high-speed camera based on two color method and its CFD analysis in Cu direct laser drilling of printed circuit board

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In the present report, we attempt to monitor the temperature of Cu direct laser drilling process of multi-layer printed circuit board with a high speed camera based on two color method and to construct a model of its process with a CFD (computational ...
Toshiki HIROGAKI   +3 more
doaj   +1 more source

In-situ laser retorting of oil shale [PDF]

open access: yes, 1977
Oil shale formations are retorted in situ and gaseous hydrocarbon products are recovered by drilling two or more wells into an oil shale formation underneath the surface of the ground.
Bloomfield, H. S.
core   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar   +6 more
wiley   +1 more source

Research on Optical Path Trajectory Equation Based on Three Optical Wedges

open access: yesIEEE Photonics Journal
Rotary drilling has been recognized for its excellent drilling performance in laser drilling. However, there are few studies on the optical path trajectory equations guiding the implementation of laser rotary drilling, which has limited the development ...
Jian Jiang   +6 more
doaj   +1 more source

A study on the influence of drilling and CO2 laser cutting in carbon/epoxy laminates

open access: yesJournal of Materials Research and Technology, 2019
Composite structure made of thermoset matrix often requires a circular hole to join with a steel or aluminium. Circular holes are introduced into the carbon/epoxy laminates by means of drilling and continuous wave (cw) CO2 laser.
Venkateswaran Santhanakrishnan Balakrishnan   +3 more
doaj   +1 more source

Simulation of laser drilling of Inconel X-750 and Ti-5Al-2.5Sn sheets using COMSOL

open access: yesActa Polytechnica, 2021
This study aims to investigate the simulation of laser drilling processes on Inconel X-750 and Ti-5Al-2.5Sn sheets. To this end, COMSOL Multiphysics 5.2 software was employed to carry out the virtual experiments. A JK 701 pulsed Nd:YAG laser was used for
Muammel M. Hanon   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy