scholarly journals Development of high-power laser ablation process for polycrystalline diamond polishing: Part 3. Processing with an ultra-short-pulsed laser up to 1kW

2021 ◽  
Author(s):  
William Scalbert ◽  
David Tanner ◽  
Daniel Holder ◽  
Christoph Roecker ◽  
Marwan Abdou-Ahmed ◽  
...  
Keyword(s):  
Laser Ablation ◽  
High Power ◽  
Pulsed Laser ◽  
Polycrystalline Diamond ◽  
High Power Laser ◽  
Ablation Process ◽  
Power Laser ◽  
Laser Ablation Process ◽  
Diamond Polishing

Numerical Simulation Study on Truing and Dressing of Bronze-Bonded Diamond Wheel with Pulsed Laser

2007 ◽  
Vol 359-360 ◽  
pp. 166-170
Author(s):  
Gen Yu Chen ◽  
Li Fang Mei ◽  
Bi Zhang ◽  
Ding Jun Zhu ◽  
Guo Gui Chen
Keyword(s):  
Laser Ablation ◽  
Pulsed Laser ◽  
Diamond Wheel ◽  
Ablation Depth ◽  
Grinding Wheel ◽  
Ablation Process ◽  
Wheel Surface ◽  
Laser Ablation Process ◽  
Topographic Information ◽  
Single Process

A two-dimensional mathematical model is developed to simulate laser truing and dressing of bronze-bonded diamond grinding wheel. Based on the model, the ablation depth produced on bond and diamond abrasives by an acousto-optic Q-switched YAG pulsed laser under different parameters as well as the temperature field on grinding wheel surface produced in the laser ablation process are numerically simulated. An experimental study on laser truing and dressing of grinding wheel is also conducted. In the study, the wheel surface is ablated by the single-pulsed laser and measured with a measurement device for surface topographic information. Both the theoretical analysis and the experimental results indicate that the truing and dressing processes can be simultaneously realized with the laser ablation as a single process.

Thermal model of phase explosion for high-power laser ablation

2002 ◽  
Author(s):  
Quanming Lu ◽  
Samuel S. Mao ◽  
Xianglei Mao ◽  
Richard E. Russo
Keyword(s):  
Laser Ablation ◽  
High Power ◽  
Thermal Model ◽  
Phase Explosion ◽  
High Power Laser ◽  
Power Laser

scholarly journals Recycling of calcium phosphate by firing and high-power laser-ablation processes

2019 ◽  
Vol 127 (3) ◽  
pp. 131-135 ◽  
Author(s):  
Akira SAITOH ◽  
Yukihide ISHIBASHI ◽  
Ryo KIHARA ◽  
Tatsuaki SAKAMOTO ◽  
Ryusei HAYASHI ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Calcium Phosphate ◽  
High Power ◽  
High Power Laser ◽  
Power Laser

scholarly journals Tribological and Thermal Transport of Ag-Vegetable Nanofluids Prepared by Laser Ablation

2020 ◽  
Vol 10 (5) ◽  
pp. 1779 ◽  
Author(s):  
Jaime Taha-Tijerina ◽  
Sadasivan Shaji ◽  
Sreed Sharma Kanakkillam ◽  
Maria Isabel Mendivil Palma ◽  
Karla Aviña
Keyword(s):  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Ablation Process ◽  
Negative Effects ◽  
Mineral Oils ◽  
Manufacturing Operations ◽  
Laser Ablation Process ◽  
The Coefficient Of Friction ◽  
Maximum Improvement

Lubricants and fluids are critical for metal-mechanic manufacturing operations as they reduce the friction and wear of tooling and components, and serve as coolants to dissipate the heat generated in these operations. The proper application of these materials improves machine operative life and tooling, and decreases cost, energy, and time consumption for maintenance, damage, repairs, or the need to exchange pieces/components within the machinery. Natural or vegetable-based lubricants have emerged as a substitute for mineral oils, which harm the environment due to their low biodegradability and have negative effects on human health (e.g., causing skin/respiratory diseases). Thus, finding biocompatible and efficient lubricants has become a technology objective for researchers and industry. This study evaluates soybean-, corn-, and sunflower-based lubricants reinforced with silver (Ag) nanostructures by a pulsed laser ablation process. Thermal and tribological evaluations were performed with varying Ag contents, and temperature-dependent behavior was observed. Thermal conductivity improvements were observed for all nanofluids as the temperature and Ag concentration increased (between 15% and 24%). A maximum improvement of 24% at 50 °C and 10 min exposure time of the pulsed laser ablation process for soybean oil was observed. The tribological evaluations showed improvements in the load-carrying capacity of the vegetable oils, i.e., an increase from 6% to 24% compared to conventional materials. The coefficient of friction performance also showed enhancements with Ag concentrations between 4% and 15%.

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