Development of robotic welding stations for pressure vessels: interactive digital manufacturing approaches

2022 ◽  
Author(s):  
G.-C. Vosniakos ◽  
P. Katsaros ◽  
I. Papagiannoulis ◽  
E. Meristoudi
Keyword(s):  
Pressure Vessels ◽  
Digital Manufacturing ◽  
Robotic Welding

Robotic Simulation and Web-Technology Enabling Collaboration in Digital Manufacturing

2006 ◽  
Vol 113 ◽  
pp. 329-333
Author(s):  
Sakari Pieskä ◽  
Mikko Sallinen ◽  
Vesa-Matti Honkanen ◽  
Jari Kaarela
Keyword(s):  
Material Handling ◽  
Web Technology ◽  
Product Lifecycle Management ◽  
Digital Manufacturing ◽  
Robotic Welding ◽  
Robotic Simulation ◽  
Collaborative Tools ◽  
Manufacturing Networks ◽  
Lifecycle Management ◽  
Work Cells

In this paper, robotic simulation and web-technology are considered as collaborative tools, which enable enterprises to take steps towards digital manufacturing and product lifecycle management. Some results from developing the work of robot simulation and web-technology in research laboratories and industrial environments are presented. The application areas include robotic welding cells, robotic bending cells and robotic material handling cells. Experiences from the development work with different robot work cells confirm that digital manufacturing technology will become a practice in manufacturing networks in the future.

1250-kilovolt scanning transmission electron microscope

1984 ◽  
Vol 42 ◽  
pp. 624-625
Author(s):  
T. Imura ◽  
S. Maruse ◽  
K. Mihama ◽  
M. Iseki ◽  
M. Hibino ◽  
...  
Keyword(s):  
High Voltage ◽  
Electron Probe ◽  
Scanning Transmission Electron Microscope ◽  
Pressure Vessels ◽  
Practical Applications ◽  
Voltage Generator ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
New Applications ◽  
High Voltage Generator

Ultra high voltage STEM has many inherent technical advantages over CTEM. These advantages include better signal detectability and signal processing capability. It is hoped that it will explore some new applications which were previously not possible. Conventional STEM (including CTEM with STEM attachment), however, has been unable to provide these inherent advantages due to insufficient performance and engineering problems. Recently we have developed a new 1250 kV STEM and completed installation at Nagoya University in Japan. It has been designed to break through conventional engineering limitations and bring about theoretical advantage in practical applications.In the design of this instrument, we exercised maximum care in providing a stable electron probe. A high voltage generator and an accelerator are housed in two separate pressure vessels and they are connected with a high voltage resistor cable.(Fig. 1) This design minimized induction generated from the high voltage generator, which is a high frequency Cockcroft-Walton type, being transmitted to the electron probe.

Probabilistic evaluation of detection capability of eddy current testing to inspect pitting on a stainless steel clad using multiple signal features

2020 ◽  
Vol 64 (1-4) ◽  
pp. 47-55
Author(s):  
Takuma Tomizawa ◽  
Haicheng Song ◽  
Noritaka Yusa
Keyword(s):  
Stainless Steel ◽  
Eddy Current ◽  
Pressure Vessels ◽  
Eddy Current Testing ◽  
Probability Of Detection ◽  
Current Testing ◽  
Multiple Signal ◽  
Signal Features ◽  
Inner Surface ◽  
Drill Holes

This study proposes a probability of detection (POD) model to quantitatively evaluate the capability of eddy current testing to detect flaws on the inner surface of pressure vessels cladded by stainless steel and in the presence of high noise level. Welded plate samples with drill holes were prepared to simulate corrosion that typically appears on the inner surface of large-scale pressure vessels. The signals generated by the drill holes and the noise caused by the weld were examined using eddy current testing. A hit/miss-based POD model with multiple flaw parameters and multiple signal features was proposed to analyze the measured signals. It is shown that the proposed model is able to more reasonably characterize the detectability of eddy current signals compared to conventional models that consider a single signal feature.

Estudo comparativo de corpos de prova poliméricos (ABS), fabricados por extrusão, injeção e DDM baseado em ensaios de tração

2018 ◽  
pp. 181-194
Author(s):  
PHF Cavasso ◽  
NW Paschoalinoto ◽  
C Lazareti ◽  
D Gregório ◽  
DOT Bruno
Keyword(s):  
Digital Manufacturing ◽  
Direct Digital Manufacturing

O estudo se desenvolveu por meio da fabricação e posterior ensaio de corpos de prova confeccionados por meio de Direct Digital Manufacturing (DDM), usinagem de placas extrudadas e injeção de polímeros. Um comparativo das propriedades mecânicas obtidas pelos ensaios de tração foi realizada. A avaliação das aplicações de peças DDM, especialmente por se tratar de uma tecnologia relativamente jovem e que ainda não tem todo seu potencial explorado, foi o que motivou a realização desse trabalho. Cada um dos três processos avaliados apresentou particularidades. Os ensaios de peças usinadas e injetadas apresentaram resultados bem característicos, sendo o material usinado mais resistivo à forças trativas do que o material injetado. As peças fabricadas por DDM se mostraram tão eficientes quanto à injeção no ensaio de tração.

377. Development of a Novel Robotic Welding Fume Inhalation and Exposure System

2004 ◽  
Author(s):  
A. Afshari ◽  
J. Antonini ◽  
S. Stone ◽  
G. Fletcher ◽  
V. Castranova ◽  
...  
Keyword(s):  
Welding Fume ◽  
Robotic Welding ◽  
Exposure System

Robotic welding on tube nodes

2019 ◽  
Vol 2019 (1) ◽  
pp. 44-49
Author(s):  
S. Keitel ◽  
◽  
U. Mückenheim ◽  
U. Wolski ◽  
S. Lotz ◽  
...  
Keyword(s):  
Robotic Welding
Sign in / Sign up

Export Citation Format

Share Document