Numerical Simulation of Minimal Average Bonding Strength to Suppress Rebounding in Cold Spraying Cu/Cu: A Preliminary Study

2014 ◽  
Author(s):  
Kai Wang ◽  
Lingyan Kong ◽  
Yongshan Tao ◽  
Tiefan Li ◽  
Tianying Xiong
Keyword(s):  
Numerical Simulation ◽  
Bonding Strength ◽  
Cold Spraying ◽  
Preliminary Study

Measurement and Numerical Simulation of Particle Velocity in Cold Spraying

2006 ◽  
Vol 15 (4) ◽  
pp. 559-562 ◽  
Author(s):  
Wen-Ya Li ◽  
Chang-Jiu Li ◽  
Hong-Tao Wang ◽  
Cheng-Xin Li ◽  
Hee-Seon Bang
Keyword(s):  
Numerical Simulation ◽  
Particle Velocity ◽  
Cold Spraying

scholarly journals Assessment of the tsunami hazard on Moroccan coasts using numerical modeling

2018 ◽  
Vol 149 ◽  
pp. 02079
Author(s):  
Meriem Amine ◽  
Latifa Ouadif ◽  
Khadija Baba ◽  
Lahcen Bahi
Keyword(s):  
Numerical Simulation ◽  
Numerical Modeling ◽  
Marine Environment ◽  
Tsunami Hazard ◽  
Major Event ◽  
National Network ◽  
Seismic Sensors ◽  
Source Zones ◽  
Historical Times ◽  
Preliminary Study

Caused by earthquakes in the marine environment, tsunamis are often of particular violence. Pests, their damage far exceeds those caused by earthquakes earthquakes. In Morocco, seismic sensors in the national network often detect earthquakes in the marine environment. However, specialists minimize their threat given the peculiarity of the Moroccan ocean zone. The latter is characterized by the importance of the length of the faults and the depth of the seismic focus. This work can be considered as a first approach to the study and understanding tsunamis. Although Morocco has known since historical times, earthquakes and tsunamis along its coasts. This preliminary study is mainly intended to show the contribution of the numerical simulation of tsunamis, with a concrete application of the 1755 Tsunami of Lisbon based on the four source zones involving the five potentially tsunamigenic faults that are generally mentioned in the literature for this major event.

scholarly journals Nanosecond-Pulse Laser Assisted Cold Spraying of Al–Cu Aluminum Alloy

Coatings ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 267
Author(s):  
Chen Zhang ◽  
Dongbin Zhang ◽  
Can Luo ◽  
Weiping Peng ◽  
Xusheng Zang
Keyword(s):  
Aluminum Alloy ◽  
Pulse Laser ◽  
Bonding Strength ◽  
Substrate Surface ◽  
High Strength ◽  
Cold Spraying ◽  
Nanosecond Pulse ◽  
Forming Technology ◽  
Nanosecond Pulse Laser

In this study, nanosecond-pulse laser is used in combination with cold spraying to form a hybrid solid-state forming technology: nanosecond-pulse laser assisted cold spraying. This method successfully manufactured Al-Cu high-strength aluminum alloy coatings. The nanosecond-pulse laser reduced the porosity of the coatings. The laser-induced micro-texture on the substrate surface had the ability of improving the bonding strength of the coating-substrate interface. The bonding strength was closely related to the depth of the micro-texture. The deeper micro-texture caused an unfused interface on the bottom of the texture, which produced voids and reduced the bonding strength. The nanosecond-pulse lasers can also increase the hardness of the coatings. The assistance of the nanosecond-pulse laser has proved to be an effective method to improve the quality of cold sprayed metal coatings.

scholarly journals Study on the Growth of Holes in Cold Spraying via Numerical Simulation and Experimental Methods

Coatings ◽  
2016 ◽  
Vol 7 (1) ◽  
pp. 2 ◽  
Author(s):  
Guosheng Huang ◽  
Hongren Wang ◽  
Xiangbo Li ◽  
Lukuo Xing
Keyword(s):  
Numerical Simulation ◽  
Cold Spraying ◽  
Experimental Methods

Preliminary Study on the Rotational Indexing Machining Technology of Straight Bevel Gear

2012 ◽  
Vol 217-219 ◽  
pp. 1650-1654
Author(s):  
Jia Li ◽  
Wen Meng ◽  
Jiang Shi
Keyword(s):  
Numerical Simulation ◽  
Mathematical Method ◽  
Mathematical Models ◽  
Bevel Gear ◽  
Tooth Surface ◽  
Curve Segment ◽  
Straight Bevel Gear ◽  
Straight Line ◽  
Preliminary Study ◽  
Cutting Point

Aiming at the disadvantages of intermittent indexing in the existing straight bevel gear machining methods, a continuous indexing machining method is proposed based on the principle of cycloid rotational indexing. The principle of rotational indexing machining of straight bevel gear is explained by the mathematical method of the space curve approximating straight line. On this basis, the mathematical models of forming motions are established. The relations of useful parameters are built with these models, and then the cutting point trajectory is obtained. The parameters are adjusted according to the approximation straightness of curve segment to generatrix on tooth surface. By means of calculation and numerical simulation of an example, the feasibility of the rotational indexing machining method for straight bevel gear is proved.

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