Modeling, identification and optimization of damage deterioration in the bolted repaired metallic plate

2021 ◽  
Vol 583 (1) ◽  
pp. 278-294
Author(s):  
Yaogang Wu ◽  
Xing Shen ◽  
Dinghe Li
Keyword(s):  
Metallic Plate

Thin metallic plate perforation.

1985 ◽  
Vol 33 (379) ◽  
pp. 476-483
Author(s):  
Kichinosuke TANAKA ◽  
Tomoaki KUROKAWA ◽  
Hiroshi YONEDA ◽  
Keiichi ADACHI
Keyword(s):  
Metallic Plate ◽  
Plate Perforation

On the Opacity of Aluminium Foil to Ions from a Flame

1906 ◽  
Vol 25 (2) ◽  
pp. 903-907
Author(s):  
George A. Carse
Keyword(s):  
High Potential ◽  
The Other ◽  
Metallic Plate ◽  
Aluminium Foil ◽  
Image Position

The apparatus used to show that aluminium was opaque to the ions from a flame consisted (see fig. 1) of a tube A, which wasfunnel-shaped at one end, the other end of which led to an enclosure B, one side of which (a b) was made of aluminium foil connected to earth, and on the other side there was an insulated metallic plate (c d), which could either be connected to earth or to a high potential battery. On the other side of the aluminium foil there was an electroscope in a closed case C. The electroscope was of the type used by C. T. R. Wilson in his experiments on the natural ionisation of air in closed vessels.

scholarly journals Numerical Analysis and Experimental Study on Fabrication of High Aspect Ratio Tapered Ultrafine Holes by Over-Growth Electroforming Process

Micromachines ◽  
2019 ◽  
Vol 10 (12) ◽  
pp. 824
Author(s):  
Yunyan Zhang ◽  
Pingmei Ming ◽  
Runqing Li ◽  
Ge Qin ◽  
Xinmin Zhang ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Structural Parameters ◽  
Geometric Shape ◽  
High Tech ◽  
Shape Evolution ◽  
Metallic Plate ◽  
Electroforming Process ◽  
Photoresist Film ◽  
The Relationship

High aspect ratio (HAR) ultrafine tapered holes (diameter ≤5 μm; AR ≥5) are the most important elements for some high-tech perforated metallic products, but they are very difficult to manufacture. Therefore, this paper proposes a nontraditional over-growth electroforming process. The formation mechanism of the HAR ultrafine tapered holes is investigated, and the factors controlling the geometric shape evolution are analyzed numerically. It was found that the geometric shape and dimensions of the holes are highly dependent on the diameter and thickness of the photoresist film patterns, but are hardly affected by the spacing between two neighboring patterns; the achievable diameter for a given hole depth becomes small with the increasing pattern diameter, but it becomes big with the increasing pattern thickness. These correlations can be well interpreted by the established two empirical equations that characterize the relationship between the minimum orifice of the tapered hole and the structural parameters of the photoresist film patterns previously formed on the substrate. Application of the fabricated 1500 tapered holes with 3-μm diameter and 17-AR as the nozzles of the medical precision nebulizer is also examined. The studies show that the over-growth electroforming process is highly applicable in fabricating the perforated metallic plate with HAR ultrafine tapered holes.

Sign in / Sign up

Export Citation Format

Share Document