Integration of design and manufacturing data to support personal manufacturing based on 3D printing services

2016 ◽  
Vol 90 (9-12) ◽  
pp. 3761-3773 ◽  
Author(s):  
Namchul Do
Keyword(s):  
3D Printing ◽  
Design And Manufacturing ◽  
Manufacturing Data

Condition Monitoring Methodology for Manufacturing and Design

1998 ◽  
Author(s):  
Irem Y. Tumer ◽  
Kristin L. Wood ◽  
Ilene J. Busch-Vishniac
Keyword(s):  
Milling Process ◽  
Monitoring Methods ◽  
Design And Manufacturing ◽  
Systematic Methodology ◽  
Surface Deviations ◽  
Part Surface ◽  
Tool Vibrations ◽  
Changes Over Time ◽  
Part Production ◽  
Manufacturing Data

Abstract Part production requires constant monitoring to assure the effective manufacturing of high-quality components. The choice of monitoring methods can become a crucial factor in the decisions made during and prior to manufacturing. In an ideal world, designers and manufacturers will work together to interpret manufacturing and part data to assure the elimination of faults in manufacturing. However, manufacturing still lacks mathematically robust means of interpreting the manufacturing data so that a channel of communication can be established between design and manufacturing. To address part production concerns, we present a systematic methodology to interpret manufacturing data based on signals from manufacturing (e.g., tool vibrations, part surface deviations). These signals are assumed to contain a fingerprint of the manufacturing condition. The method presented in this paper is based on a mathematical transform to decompose the signals into their significant modes and monitor their changes over time. The methodology is meant to help designers and manufacturers make informed decisions about a machine and/or part condition. An example from a milling process is used to illustrate the method’s details.

3D Printing of Ceramic Shell Molds for Precision Casting of Turbine Blades

2021 ◽  
Author(s):  
Liubov Magerramova ◽  
Boris Kozlov ◽  
Eugene Kratt
Keyword(s):  
3D Printing ◽  
Turbine Blades ◽  
Shell Shape ◽  
Ceramic Shell ◽  
Labor Costs ◽  
Precision Casting ◽  
Design And Manufacturing ◽  
Refractory Ceramic ◽  
Internal Core ◽  
Ceramic Shell Mold

Abstract Traditionally, the technology used in the production of gas turbine blade castings characterized by a large number of technological conversions, high labor costs with a large amount of manual labor and the need to produce various types of complex and expensive equipment at different stages of production. This work aims to reduce the time and money spent on the manufacturing of ceramic shell shapes — a form suitable for the standard methods of precision casting by traditional heat-resistant nickel alloys. The proposed approached involves obtaining a shell shape with an internal core as a single, non-assembled product, without lengthy and time-consuming design and manufacturing processes involved in forming equipment for the production of castings based on smelted models. The proposed method is based on the use of 3D printing with refractory ceramic pastes. Using both uncooled and cooled blades as examples, models of casting molds were designed, technological processes were developed, and ceramic shell molds were manufactured. Experimental casting into a manufactured ceramic shell mold for an uncooled blade with a bandage shelf was performed and showed satisfactory results.

Rapid design and manufacturing of task-specific autonomous paragliders using 3D printing

2017 ◽  
Author(s):  
Dominique E. Meyer ◽  
Miguel De Villa ◽  
Ihab Salameh ◽  
Elioth Fraijo ◽  
Ryan Kastner ◽  
...  
Keyword(s):  
3D Printing ◽  
Rapid Design ◽  
Design And Manufacturing

scholarly journals ATENUACIÓN DE CAMPOS ELECTROMAGNÉTICOS EN INSTRUMENTOS AERONÁUTICOS EMPLEANDO MANUFACTURA ADITIVA

2020 ◽  
Vol 24 (104) ◽  
pp. 47-57
Author(s):  
Héctor Lasluisa ◽  
Aldo Capelo
Keyword(s):  
3D Printing ◽  
Palabras Clave ◽  
Design And Manufacturing

Esta investigación explora la utilización de materiales alternativos como el filamento termoplástico ABS y un moderno método de manufactura, como lo es la impresión 3D para reproducir la estructura de un instrumento medidor de revoluciones por minuto RPM de un motor aeronáutico con características de atenuación de campos electromagnéticos y supresión de ruido, similares a los instrumentos originales producidos con aluminio embutido, para lograr este propósito se emplea la ley de Gauss y el efecto de la jaula de Faraday, además mediante la combinación de plástico y fibra de vidrio se logra un sistema de paredes dobles que atenúan la propagación del sonido. Empleando el diseño e ingeniería asistidos por computador se ejecuta la simulación y validación del prototipo empleando el método de análisis por elementos finitos y análisis de compatibilidad electromagnética, finalmente los resultados de las pruebas de laboratorio y de campo permiten cuantificar las nuevas características mecánicas obtenidas. Palabras Clave: impresión 3D, instrumento aeronáutico, jaula de Faraday. Referencias [1]R. Collinson, Introduction to Avionics Systems, Rochester, Kent, U.K.: Springer, 2013. [2]G. M. P., Introducción a los procesos de manufactura, México: Mc Graw Hill, 2014. [3]B. v. d. Berg, 3D Printing, Leiden : Springer, 2016. [4]Airbus, «Airbus Technical Magazine,» FAST Flight Airworthiness Support Technology, vol. único, nº 55, p. 40, 2015. [5]J. H. &. L. Serway, Física para ciencias e Ingeniería, Filadelfia: Mc Graw Hill, 2002. [6]M. Moser, Ingeniería Acústica, teoría y aplicaciones., Berlin: Springer, 2009. [7]R. E. Olcina, «Radiación de energía electromagnética,» de Interferencias electromagnéticas en componentes electrónicos, Madrid, Dialnet, 1992, pp. 389-394. [8]Y. Freedman, Física Universitaria, México: Pearson, 2009. [9]B. P. N. Anderson, The Elecromagnetic Field, York, London: Springer, 1968. [10]U. S. Dixit, Simulations for design and manufacturing, Singapore: Springer, 2018.  

Design and Manufacturing of a Metal 3D Printed kW Scale Axial Turboexpander

2019 ◽  
Author(s):  
Vaclav Novotny ◽  
Monika Vitvarova ◽  
Michal Kolovratnik ◽  
Barbora Bryksi Stunova ◽  
Vaclav Vodicka ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Surface Quality ◽  
High Efficiency ◽  
Cost Effective ◽  
Manufacturing Cost ◽  
Machining Processes ◽  
Manufacturing Method ◽  
Design And Manufacturing ◽  
3D Printed

Abstract Greater expansion of distributed power and process systems based on thermodynamic cycles with single to hundred kW scale power output is limited mainly there are not available cost-effective expanders. Turboexpanders have a perspective of high efficiency and flexibility concerning operating parameters even for the micro applications. However, they suffer from a high manufacturing cost and lead time in the development of traditional technologies (such as casting and machining processes). Additive manufacturing provides a possibility to overcome some of the issues. Manufacturing parts with complicated shapes by this technology, combining multiple components into a single part or rapid production by 3D printing for development purposes are among the prospective features with this potential. On the other hand, the 3D printing processes come with certain limitations which need to be overcome. This paper shows a design and manufacturing process of a 3 kW axial impulse air turbine working with isenthalpic drop 30 kJ/kg. Several samples to verify printing options and the turbine itself has been manufactured from stainless steel by the DMLS additive manufacturing method. Manufactured are two turbine variations regarding blade size and 3D printer settings while maintaining their specific dimensions. The turboexpanders testing method and rig is outlined. As the surface quality is an issue, several methods of post-processing of 3D printed stator and rotor blading to modify surface quality are suggested. Detailed experimental investigation is however subject of future work.

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