Deadlock-Free Scheduling Strategy for Automated Production Cell

Author(s):  
X. Gang ◽  
Z. Wu
Author(s):  
Jake M. Pyzza ◽  
William M. Sisson ◽  
Raymond Puffer

Early research has demonstrated the benefits of ultrasonically bonding PEM fuel cell Membrane Electrode Assemblies (MEAs), in terms of durability [2] and unit cost and cycle time [3]. With these improvements in performance, the next phase in the development of the process is to move from a laboratory setup to an automated production cell capable of producing larger volumes of fuel cells while maintaining a quality ultrasonic bond. The MEAs also need to be produced more affordably and with quality standards meeting or exceeding the level set by current best manufacturing practices.


2017 ◽  
Vol 871 ◽  
pp. 186-192 ◽  
Author(s):  
Paul Heisler ◽  
Patrick Steinmetz ◽  
In Seong Yoo ◽  
Jörg Franke

The wiring system is one of the most important and one of the most expensive part of modern passenger vehicles. It ́s production is done manually to nearly 100% since the early years of car manufacturing. Until today it wasn ́t possible to automatize these cost-intensive step of the car production in an effective and cost efficient way. This paper shows how the routing process of the wiring harness as a part of the whole production process can be automatized with easy and cost efficient production methods. Collaborative robots and 3D-printed prototypes of cable grippers were used to treat with the complexity of the job and to finally create a sustainable and cost efficient production system. Further the routing concept has been brought to a prototypical production cell which has been tested in various routing experiments at the institute’s laboratory. Finally, a discussion of the results brings up the strengths and weaknesses of the concept and shows possible solutions.


Author(s):  
A.V. Stomatov ◽  
D.V. Stomatov ◽  
P.V. Ivanov ◽  
V.V. Marchenko ◽  
E.V. Piitsky ◽  
...  

In this work, the authors studied and compared the two main methods used in dental practice for the automated production of orthopedic structures: the widely used CAD / CAM milling method and the 3D printing technology. As an object of research, temporary crowns were used, which were made on the basis of the same digital model: a) by the method of CAD / CAM milling from polymethylmethacrylate disks; b) by 3D printing from photopolymer resin based on LCD technology. Comparison of production methods and finished designs was carried out according to the following characteristics: strength, durability, aesthetic qualities, accuracy of orthopedic designs, etc. According to the results of the study, it was concluded that 3D printing can be a good alternative to CAD / CAM milling in solving problems of temporary prosthetics.


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