Study on Morphologies of Al2O3 Ceramics with Low-Pressure Water Jet Assisted Laser Drilling

Applied laser ◽  
2014 ◽  
Vol 34 (4) ◽  
pp. 323-326
Author(s):  
陆平卫 Lu Pingwei ◽  
袁根福 Yuan Genfu
Keyword(s):  
Low Pressure ◽  
Laser Drilling ◽  
Water Jet ◽  
Pressure Water

Study on Morphologies of Al2O3Ceramics with Low-Pressure Water Jet Assisted Laser Drilling

Applied laser ◽  
2014 ◽  
Vol 34 (4) ◽  
pp. 323-326
Author(s):  
陆平卫 Lu Pingwei ◽  
袁根福 Yuan Genfu
Keyword(s):  
Low Pressure ◽  
Laser Drilling ◽  
Water Jet ◽  
Pressure Water

Experimental Study of Low-Pressure Water Jet Assisted Laser Drilling on Al2O3 Ceramic

2014 ◽  
Vol 599-601 ◽  
pp. 22-26 ◽  
Author(s):  
Ping Wei Lu ◽  
Gen Fu Yuan
Keyword(s):  
Pressure Pulse ◽  
Low Pressure ◽  
Laser Drilling ◽  
Water Jet ◽  
Recast Layer ◽  
Al2o3 Ceramic ◽  
Micro Cracks ◽  
Direct Laser ◽  
Pressure Water ◽  
Composite Drilling

The direct laser drilling could bring the recast layer and micro cracks, here introduced a new method named low-pressure water jet assisted laser drilling.It mainly studied some factors influence on the surface and inwall morphologies of Al2O3 ceramic when using low-pressure water jet, such as auxiliary gas pressure、pulse energy、repeated frequency.By optimizing the parameters, it can get the better surface and inwall morphologies. The results show that, taking advantage of the erosion of water jet, the composite drilling can obviously lessen molten slags, in order to reduce the recast layer and micro cracks, the processing quality can be improved much.

Experimental Study of the Low-Pressure Water Jet Assisted Laser Processing of W6Mo5Cr4V2 High-Speed Steel

Applied laser ◽  
2013 ◽  
Vol 33 (2) ◽  
pp. 181-185
Author(s):  
王金华 Wang Jinhua ◽  
袁根福 Yuan Genfu ◽  
逄志伟 Pang Zhiwei ◽  
陈春映 Chen Chunying
Keyword(s):  
Experimental Study ◽  
Laser Processing ◽  
High Speed ◽  
High Speed Steel ◽  
Low Pressure ◽  
Water Jet ◽  
Pressure Water

Experimental Study of the Low-Pressure Water Jet Assisted Laser Processing of W6Mo5Cr4V2 High-Speed Steel

Applied laser ◽  
2013 ◽  
Vol 33 (2) ◽  
pp. 181-185
Author(s):  
王金华 Wang Jinhua ◽  
袁根福 Yuan Genfu ◽  
逄志伟 Pang Zhiwei ◽  
陈春映 Chen Chunying
Keyword(s):  
Experimental Study ◽  
Laser Processing ◽  
High Speed ◽  
High Speed Steel ◽  
Low Pressure ◽  
Water Jet ◽  
Pressure Water

scholarly journals Hepatic Surgery Facilitated by a New Jet Dissector

HPB Surgery ◽  
1991 ◽  
Vol 4 (2) ◽  
pp. 137-146 ◽  
Author(s):  
H. U. Baer ◽  
G. J. Maddern ◽  
L. H. Blumgart
Keyword(s):  
Blood Loss ◽  
High Velocity ◽  
Bile Ducts ◽  
Low Pressure ◽  
Water Jet ◽  
Hepatic Surgery ◽  
Intrahepatic Bile Ducts ◽  
Pressure Water ◽  
Velocity Water

Increasing experience with major hepatic resections has stimulated the development of improved resectional techniques and tools. A new high velocity water jet dissector is reported which offers significant advances over previously developed ultrasonic and low pressure water jet machines. It has been successfully used in 8 major hepatic resections with minimal blood loss, excellent visibility and without complications. The dissector is also of value in the exposure of intrahepatic bile ducts for biliaryenteric anastomosis.

Effects of a low-pressure water jet assisting the laser etching of polycrystalline silicon

2018 ◽  
Vol 124 (8) ◽  
Author(s):  
Xuehui Chen ◽  
Xiang Li ◽  
Wei Song ◽  
Chao Wu ◽  
Yao Zhang
Keyword(s):  
Polycrystalline Silicon ◽  
Low Pressure ◽  
Water Jet ◽  
Laser Etching ◽  
Pressure Water

Experimental Study of the Low-Pressure Water Jet Assisted Laser Processing of Al2O3 Ceramic

Applied laser ◽  
2013 ◽  
Vol 33 (3) ◽  
pp. 278-284
Author(s):  
袁根福 Yuan Genfu ◽  
逄志伟 Pang Zhiwei ◽  
王金华 Wang Jinhua ◽  
陈春映 Chen Chunying
Keyword(s):  
Experimental Study ◽  
Laser Processing ◽  
Low Pressure ◽  
Water Jet ◽  
Al2o3 Ceramic ◽  
Pressure Water

Experimental Study of Low-Pressure Water Jet Assisted Laser Processing of Al2O3 Ceramic

2013 ◽  
Vol 652-654 ◽  
pp. 2363-2368
Author(s):  
Jin Hua Wang ◽  
Gen Fu Yuan
Keyword(s):  
Surface Quality ◽  
Laser Processing ◽  
Thermal Deformation ◽  
Low Pressure ◽  
Processing Parameters ◽  
Water Jet ◽  
Good Surface ◽  
Hard And Brittle Material ◽  
Pressure Water

Recast layer, micro cracks and thermal deformation limited the improvement of the surface quality of laser processing in precision machining of hard and brittle material. This paper presents a new method which combines low-pressure water jet with laser processing. A comprehensive study on the influence of laser processing parameters on surface quality of an Al2O3 ceramic sheet is presented. The experiment was conducted using ND: YAG laser machine and low-pressure water jet was used as assist. The surface quality of normal laser processing and low-pressure water jet assisted laser processing was comparative analyzed using a 3-D microscopy. Experiment proves that the composite processing of low-pressure water jet assisted laser processing can obtain good surface quality, slight moltenslag and thermal deformation, compared with the normal laser processing.

Experimental Study of the Low-Pressure Water Jet Assisted Laser Processing of Al2O3 Ceramic

Applied laser ◽  
2013 ◽  
Vol 33 (3) ◽  
pp. 278-284
Author(s):  
袁根福 Yuan Genfu ◽  
逄志伟 Pang Zhiwei ◽  
王金华 Wang Jinhua ◽  
陈春映 Chen Chunying
Keyword(s):  
Experimental Study ◽  
Laser Processing ◽  
Low Pressure ◽  
Water Jet ◽  
Al2o3 Ceramic ◽  
Pressure Water

Experimental Study of Low-Pressure Water Jet Assisted Laser Drilling on Al2O3 Ceramic

2013 ◽  
Vol 760-762 ◽  
pp. 780-784 ◽  
Author(s):  
Zhi Wei Pang ◽  
Gen Fu Yuan
Keyword(s):  
Surface Quality ◽  
Laser Processing ◽  
Molten Slag ◽  
Low Pressure ◽  
Processing Parameters ◽  
Water Jet ◽  
New Method ◽  
Processing Quality ◽  
Pressure Water ◽  
The Stability

A study on low pressure water jet assisted laser processing is presented. This new method is researched by drilling on Al2O3ceramics material. A comprehensive research on the influence of laser processing parameters on surface quality with this method is conducted. The microcosmic appearances of the machining surfaces obtained from normal laser processing and composite processing were comparatively analyzed. At the same time, through measuring the holes in the 3-D morphology, the influences of water jet velocity and laser processing parameters on the surface quality are presented. The results show that, the surface quality is significantly improved with this new method which combines low pressure jet into laser processing. The molten slag can be significantly reduced and the stability of processing quality can be improved much.

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