scholarly journals Design and Manufacture of a Microfluidic Cell To Be Used With a Spectroscopic Ellipsometer

2021 ◽  
Vol 4 (1) ◽  
pp. 28-31
Author(s):  
Tamás Bíró ◽  
József Bálint Renkó

Abstract In material testing and manufacturing processes, creating thin layers is a widely used method for structure development or for surface treatment purposes. Despite its widespread use, the physical background of the layer development process is currently under-researched. Its examination requires the development of procedures and tools that, in combination with the existing tools, can help to understand these processes. The development of microfluidic cells is a way to solve this problem. In this paper, a newly developed microfluidic cell is presented, which also offers a solution to several problems encountered when using previous designs.

Author(s):  
Ivan Molnár ◽  
Ladislav Morovič

Abstract The paper discusses the use of 3D digitization and additive manufacturing technologies in the field of medicine. In addition, applications of the use of 3D digitization and additive manufacturing methods are described, focusing on the design and manufacture of individual medical aids. Subsequently, the process of designing and manufacturing of orthopedic aids using these technologies is described and the advantages of introducing the given technologies into the design and manufacturing processes in the medicine sector are presented.


Author(s):  
Nicolai Beisheim ◽  
Markus Kiesel ◽  
Markus Linde ◽  
Tobias Ott

The interdisciplinary development of smart factories and cyber-physical systems CPS shows the weaknesses of classical development methods. For example, the communication of the interdisciplinary participants in the development process of CPS is difficult due to a lack of cross-domain language comprehension. At the same time, the functional complexity of the systems to be developed increases and they act operationally as independent CPSs. And it is not only the product that needs to be developed, but also the manufacturing processes are complex. The use of graph-based design languages offers a technical solution to these challenges. The UML-based structures offer a cross-domain language understanding for all those involved in the interdisciplinary development process. Simulations are required for the rapid and successful development of new products. Depending on the functional scope, graphical simulations of the production equipment are used to simulate the manufacturing processes as a digital factory or a virtual commissioning simulation. Due to the high number of functional changes during the development process, it makes sense to automatically generate the simulation modelling as digital twins of the products or means of production from the graph-based design languages. The paper describes how digital twins are automatically generated using AutomationML according to the Reference Architecture Model Industry 4.0 (RAMI 4.0) or the Industrial Internet Reference Architecture (IIRA).


Author(s):  
M. D. Giess ◽  
S. J. Culley ◽  
A. Shepherd

Manufacturing processes produce a considerable amount of data as dimensions are measured, tests are performed and assembly checks are undertaken. Predominantly these data are used to inform and help improve the associated manufacturing processes and procedures. A variety of Knowledge Discovery techniques [1] have been introduced in the engineering field, most typically in areas with large quantities of data [2]. This paper describes research into the use of such techniques in the manufacture and assembly of large complex engineering products, an area which is characterised by low volume of data and dispersed databases. The developed methodology seeks to incorporate various approaches, with emphasis on using extracted knowledge to inform the implementation of subsequent techniques. This investigation centres on discovering and quantifying relationships between the various balance and vibration tests performed throughout assembly of gas turbine rotors, and to highlight critical parameters. Current assembly practices do not use forward prediction of test performance, and the first stages of this project aim to produce a model to enable this. The scope of this model will then be extended to feed this knowledge back to be used in the design and manufacture of future components.


2002 ◽  
Vol 758 ◽  
Author(s):  
J-E. Lind ◽  
J. Hanninen ◽  
J. Kotila ◽  
O. Nyrhila ◽  
T. Syvanen

ABSTRACTThe term Rapid Manufacturing is today very often used as a substitute for Rapid Prototyping, because the manufacturing processes and materials have developed so much that the parts produced with the machines can even be used as functional production parts. For Direct Metal Laser Sintering (DMLS) this was enabled by the introduction of the powders for 20 micron layer thickness; steel-based powder in 2001 and bronze-based powder in 2002. Successful rapid manufacturing with DMLS does not only mean the reduction of layer thickness, but it is a sum of many factors that had to be optimized in order to make the process work with the 20 micron layer thickness: the metal powder behavior in very thin layers is not the same as with thicker layers, the demands for the support structures are higher and the possibility of using multiples of the layer thickness gives additional freedom. By optimizing the process parameters the UTS values for the steel-based powder increased up to 600 MPa and for the bronze-based powder up to 400 MPa. At the same time the surface roughness (Ra) values after shot peening were 3 microns and 2 microns, respectively. Although using thinner layers also increases the building time the advantage is gained in drastically reduced finishing times due to increased surface quality and detail resolution. Typical geometries produced by DMLS are difficult-to-manufacture components and components typically produced by P/M or even by die-casting. The paper covers the development aspects in both material and process development and also presents some realized case studies.


2012 ◽  
Vol 220-223 ◽  
pp. 2319-2322
Author(s):  
Jian Zhang ◽  
Kun Huang ◽  
Lu Wang

With the rapid development of computer technology, various distributed-component technologies are emerging. CCM specification, which has the features of independent of platforms and development languages, complete model, standard protocol and interface, has been widely recognized in computer industry. In this specification, the reuse of software is achieved through assembling. Its openness and extensibility makes it especially suitable for the integration of large-scale information system. Based on the introduction of CCM specification and information system integration, proposes the application of CCM specification to information system integration, and describes the integrating method from four aspects of integration framework, hierarchy structure, development process, and operation characteristic.


2020 ◽  
Vol 994 ◽  
pp. 288-295
Author(s):  
Lukáš Hrivniak ◽  
Michal Šašala ◽  
Jozef Svetlík ◽  
Tomáš Stejskal

The article deals with the process of the development of components, selection and use of materials required to assemble an universal rotation module. The use of the right materials and production processes is an important factor in the development of any new machines. The paper first describes the function of the universal rotation module. Furthermore, it focuses on the development process of selected parts of the prototype, especially the outer cover of the module as well as other important parts. The main problem is to correctly design and manufacture the module so that the engine and other mechanical parts can be placed inside. The technologies that were used in the development of the rotary module are metal machining and plastic printing by additive technology. It also deals with materials that were used in the production of the first generation of the functional prototype and in the development and testing in the pre-production phase.


Author(s):  
Will Pattison

Abstract Education in design has become a major priority in modern mechanical engineering curriculums. In particular, design education has focused on using good design methodology to produce optimum solutions, promote innovation, and encourage creativity in the engineer. There are other facets of the design engineer’s position that should also be emphasized at the education level. First, design engineers must be aware of the manufacturing processes that will be used to turn their concepts into working solutions. Second, they must understand how prototypes of those solutions fit into the overall product development process, and how new technologies such as Rapid Prototyping can enhance it. Finally, they must be able to effectively communicate their design intent, both graphically, verbally, and in writing, at all stages of the product development process. These three essential engineering skills, with special emphasis given to the last two and their place in design education, are covered in this paper.


2018 ◽  
Vol 108 (05) ◽  
pp. 301-306
Author(s):  
M. Halwas ◽  
J. Hofmann ◽  
J. Fleischer ◽  
C. Riehm ◽  
C. Spieker ◽  
...  

In dem folgenden Artikel wird die parallele Technologie- und Produktentwicklung am Beispiel der Wicklungsauslegung und -fertigung beschrieben. Diese findet im Rahmen des Förderprojektes NeWwire (Neuartige serienflexible Wickelverfahren für die wirtschaftliche automatisierte Fertigung von hoch performanten elektrischen Maschinen) statt. Ziel des Forschungsprojekts NeWwire ist die Entwicklung sowie Auslegung eines neuartigen Wickelverfahrens zur automatisierten Fertigung von Elektromotoren im Hochleistungsbereich für den automobilen Einsatz. Hierbei stellt die effektive Wicklung im Stator zur Leistungssteigerung eine besondere Herausforderung dar.   The following article describes the parallel technology and product development using the example of winding design and manufacture. This takes place as part of the NeWwire funded project („New series-flexible winding processes for the economic, automated production of high-performance electrical machines“). The goal of the research project NeWwire is the development and design of a new winding process for the automated production of electric motors in the high-performance area for automotive use. In this field the effective winding in the stator in order to increase the performance is a specific challenge.


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