Generating micro grooves with a semicircular cross-section using wire electrochemical micromachining

2020 ◽  
Vol 110 (11-12) ◽  
pp. 2929-2940
Author(s):  
Zhongqi Zhou ◽  
Xiaolong Fang ◽  
Yongbin Zeng ◽  
Di Zhu
Keyword(s):  
Cross Section ◽  
Electrochemical Micromachining ◽  
Wire Electrochemical Micromachining ◽  
Semicircular Cross Section

Modeling of a bio-inspired soft arm with semicircular cross section for underwater grasping

2021 ◽  
Author(s):  
shengkai Liu ◽  
Jian Jiao ◽  
Wenchao Kong ◽  
Haiming Huang ◽  
Tao Mei ◽  
...  
Keyword(s):  
Cross Section ◽  
Semicircular Cross Section

Design of Printed Circuit Heat Exchanger (PCHE) for LNG Re-Gasification System

2017 ◽  
Author(s):  
Seok Ho Yoon ◽  
Jeong Heon Shin ◽  
Dong Ho Kim ◽  
Jun Seok Choi
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Optimal Design ◽  
Cross Section ◽  
Diffusion Bonding ◽  
Analytical Calculation ◽  
Analytical Tool ◽  
Printed Circuit ◽  
Simulation Results ◽  
Semicircular Cross Section

In this paper, we present the ongoing process of the research and development of the Printed Circuit Heat Exchanger (PCHE) on Floating Storage Regasification Unit (FSRU). We performed a structural simulation work to find the optimal design of fluid channels on heat transfer plates, fabricated the heat transfer plates, and calculated the capacity of the PCHE using our analytical tool. In the simulation work, the plates having channels of 1 mm semicircular cross section were designed by varying the wall thickness between channels. At a temperature, 1373 K, compressing pressures were varied as 30, 85.7, and 500 bars. Based on the simulation results, we fabricated and bonded heat transfer plates using the diffusion bonding equipment which our department developed. Then, the sizing of PCHE was done with analytical calculation for the developing PCHE on FSRU.

Nonsteady convective heat transfer in a tube of semicircular cross section

1979 ◽  
Vol 15 (9) ◽  
pp. 828-831
Author(s):  
A. A. Kochubei ◽  
A. A. Ryadno
Keyword(s):  
Heat Transfer ◽  
Convective Heat Transfer ◽  
Cross Section ◽  
Convective Heat ◽  
Semicircular Cross Section

Wire electrochemical micromachining of metallic glass using a carbon nanotube fiber electrode

2017 ◽  
Vol 709 ◽  
pp. 760-771 ◽  
Author(s):  
Lingchao Meng ◽  
Yongbin Zeng ◽  
Xiaolong Fang ◽  
Di Zhu
Keyword(s):  
Carbon Nanotube ◽  
Metallic Glass ◽  
Electrochemical Micromachining ◽  
Carbon Nanotube Fiber ◽  
Wire Electrochemical Micromachining ◽  
Fiber Electrode

Investigation on the Electrochemical Micromachining of Micro Holes with Variable Cross-Section

2014 ◽  
Vol 644-650 ◽  
pp. 4927-4931
Author(s):  
Kun Wang ◽  
Meng Gao ◽  
Qi Shen
Keyword(s):  
Cross Section ◽  
Pulse Width ◽  
Electrochemical Machining ◽  
Processing Parameters ◽  
Variable Cross Section ◽  
Electrochemical Micromachining ◽  
Variable Cross ◽  
Machining Parameters ◽  
Micro Holes ◽  
Side Gap

Based on the principle of electrochemical, the processing mechanism of electrochemical machining (ECM) micro holes is analyzed and discussed, the processing model is established and the quantitative relationship is presented between the machining side gap and the electrochemical machining parameters (pulse width and pulse period, pulse frequency, duty ratio, etc.), workpiece material parameters and the parameters of the electrolyte, the electric double layer equivalent circuit constant with mathematical expression. On the basis of the analysis of the effect of processing parameters on the electrochemical machining accuracy and stability, process out the variable cross-section micro hole at an appropriate processing parameters of variable pulse width.

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