RP Technology Used for the Production of Metal Parts

2015 ◽  
Vol 818 ◽  
pp. 280-283
Author(s):  
Veronika Čapková ◽  
Ivana Zetková
Keyword(s):  
Rapid Prototyping ◽  
Modern Technology ◽  
Layer By Layer ◽  
Direct Metal Laser Sintering ◽  
Metal Parts ◽  
Laser Engineered Net Shaping ◽  
Advantages And Disadvantages ◽  
Metal Products ◽  
Net Shaping ◽  
Bottom To Top

Rapid prototyping (RP) is a modern technology which can produce components with very complicated shapes using different materials. This method also allows the production of components with shapes and geometry that would be very difficult to produce using conventional methods such as milling, welding and so on. A 3D printer builds an object from bottom to top, layer by layer. The purpose of this article is to introduce rapid prototyping technology for printing metal products. It focuses on various areas of application, advantages and disadvantages of this manufacturing technology as well as introduction of two methods DMLS (Direct Metal Laser Sintering) and LENS (Laser Engineered Net Shaping).

Direct Rapid Manufacturing Technology with Laser for Metal Parts

2011 ◽  
Vol 328-330 ◽  
pp. 520-523
Author(s):  
Yong Ping Jin ◽  
Ming Hu
Keyword(s):  
Complex Shape ◽  
Selective Laser Sintering ◽  
Manufacturing Technology ◽  
Rapid Manufacturing ◽  
3 Dimensional ◽  
Metal Parts ◽  
Laser Engineered Net Shaping ◽  
Development Direction ◽  
Main Development ◽  
Net Shaping

Directly driven by CAD model, based on principle of discrete-superposition, rapid prototyping technology is the generic terms of rapid manufacturing 3-dimensional physical entities with any complex shape. One of its main development trends is direct rapid manufacturing for metal parts. Up to now, there are many methods utilizing laser beam containing selective laser melting, selective laser sintering and laser engineered net shaping. Research and development of these means for direct rapid metal manufacturing are presented in this paper. Digital direct rapid manufacturing for metal parts represents development direction of advanced manufacturing technology.

A Feasibility Study of LENS® Deposition of CoCrMo Coating on a Titanium Substrate

2008 ◽  
Vol 130 (2) ◽  
Author(s):  
G. D. Janaki Ram ◽  
B. E. Stucker
Keyword(s):  
Feasibility Study ◽  
Titanium Substrate ◽  
Current Work ◽  
Orthopedic Implant ◽  
Alternative Strategies ◽  
Laser Engineered Net Shaping ◽  
Advantages And Disadvantages ◽  
Material Systems ◽  
Net Shaping ◽  
Cobalt Base

Titanium- and cobalt-base alloys are the most widely used orthopedic implant materials. As there are specific advantages and disadvantages with both of them, one approach to fabricate superior implants is to combine these two material systems. The current work examines the feasibility of depositing CoCrMo coatings on Ti substrates using Laser Engineered Net Shaping®. Studies show that deposition of CoCrMo coating on a Ti substrate is very challenging, cracking and delamination being the major observations. Several alternative strategies, which may lead to satisfactory coatings, are presented.

scholarly journals Understanding the Microstructure and Properties of Components Fabricated by Laser Engineered Net Shaping (LENS)

2000 ◽  
Vol 625 ◽  
Author(s):  
M. L. Griffith ◽  
M. T. Ensz ◽  
J. D. Puskar ◽  
C. V. Robino ◽  
J. A. Brooks ◽  
...  
Keyword(s):  
Computer Aided Design ◽  
Manufacturing Processes ◽  
Behavior Control ◽  
Metal Parts ◽  
Laser Engineered Net Shaping ◽  
Solid Models ◽  
Material Fabrication ◽  
Net Shaping ◽  
Aided Design ◽  
Additive Methods

AbstractLaser Engineered Net Shaping (LENS) is a novel manufacturing process for fabricating metal parts directly from Computer Aided Design (CAD) solid models. The process is similar to rapid prototyping technologies in its approach to fabricate a solid component by layer additive methods. However, the LENS technology is unique in that fully dense metal components with material properties similar to wrought materials can be fabricated. The LENS process has the potential to dramatically reduce the time and cost required realizing functional metal parts. In addition, the process can fabricate complex internal features not possible using existing manufacturing processes. The real promise of the technology is the potential to manipulate the material fabrication and properties through precision deposition of the material, which includes thermal behavior control, layered or graded deposition of multi-materials, and process parameter selection.

Evaluation of Parts Produced by a Novel Additive Manufacturing Process

2013 ◽  
Vol 315 ◽  
pp. 63-67 ◽  
Author(s):  
Muhammad Fahad ◽  
Neil Hopkinson
Keyword(s):  
Additive Manufacturing ◽  
Rapid Prototyping ◽  
Manufacturing Process ◽  
High Speed ◽  
Three Dimensional ◽  
Coordinate Measuring Machine ◽  
Layer By Layer ◽  
Nylon 12 ◽  
Measuring Machine ◽  
End Use

Rapid prototyping refers to building three dimensional parts in a tool-less, layer by layer manner using the CAD geometry of the part. Additive Manufacturing (AM) is the name given to the application of rapid prototyping technologies to produce functional, end use items. Since AM is relatively new area of manufacturing processes, various processes are being developed and analyzed for their performance (mainly speed and accuracy). This paper deals with the design of a new benchmark part to analyze the flatness of parts produced on High Speed Sintering (HSS) which is a novel Additive Manufacturing process and is currently being developed at Loughborough University. The designed benchmark part comprised of various features such as cubes, holes, cylinders, spheres and cones on a flat base and the build material used for these parts was nylon 12 powder. Flatness and curvature of the base of these parts were measured using a coordinate measuring machine (CMM) and the results are discussed in relation to the operating parameters of the process.The result show changes in the flatness of part with the depth of part in the bed which is attributed to the thermal gradient within the build envelope during build.

Basis für den industriellen 3D-Druck in Stahl/Basics for industrial 3D printing for steel - Contribution to additive manufacturing of complex products in multi-variant and functional skeleton construction

2017 ◽  
Vol 107 (06) ◽  
pp. 415-419
Author(s):  
M. Hillebrecht ◽  
V. Uhlenwinkel ◽  
A. von Hehl ◽  
H. Zapf ◽  
B. Schob
Keyword(s):  
Additive Manufacturing ◽  
Functional Integration ◽  
Complex Geometries ◽  
Layer By Layer ◽  
Laser Additive Manufacturing ◽  
Complex Products ◽  
Metal Parts ◽  
Laser Joining ◽  
Automation Technology ◽  
Selection Of

Mithilfe laserbasierter generativer Fertigungsverfahren (Laser Additive Manufacturing – LAM) ist es möglich, potentiell komplexe Bauteilgeometrien variantenreich herzustellen. Damit kann Gewicht eingespart werden und Funktionen sind integrierbar. In Kombination mit Automatisierungs- und innovativer Lasertechnik in der Schweiß- und Schneidapplikation lässt sich dieser Prozess wirtschaftlich nutzen. Durch pulverbettbasierte Lasergenerierverfahren können metallische Bauteile schichtweise aufgebaut werden, jedoch ist die Auswahl der Werkstoffe limitiert. Im Forschungsprojekt StaVari (Additive Fertigungsprozesse für komplexe Produkte in variantenreicher und hochfunktionaler Stahlbauweisen) vereinen sich die neuesten Erkenntnisse in Material-, Laser-, Füge- und Automatisierungstechnik, um modernen Anforderungen der Automobilbranche in der Massenfertigung sowie bei der Medizintechnik in der Kleinserie gerecht zu werden.   Laser Additive Manufacturing LAM has the potential to generate complex geometries. Through this weight reduction, functional integration and multi-variant production is possible. In combination with automation and innovative laser technology applicated in welding and cutting, this process can be used economically. With powderbed based laser additive manufacturing metal parts can be built up layer by layer. However selection of available metals is limited. In the project StaVari latest findings in material-, laser-, joining and automation technology are joint by qualified partners to meet modern automotive demands in mass production and medicine technology for small batch series.

ESTUDO DA VIABILIADE DA MANUFATURA ADITIVA DIRETA DE MULITA POR LASER ENGINEERED NET SHAPING (LENS)

2021 ◽  
Author(s):  
Thiago Azevedo ◽  
Italo Leite de Camargo ◽  
Johan sebastian Grass Nunez ◽  
Fábio Mariani ◽  
Reginaldo Coelho ◽  
...  
Keyword(s):  
Laser Engineered Net Shaping ◽  
Net Shaping
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