scholarly journals Additive Manufacturing: A next gen fabrication

2018 ◽  
Vol 8 (01) ◽  
Author(s):  
Prajakta Subhedar
Keyword(s):  
Rapid Prototyping ◽  
Fused Deposition Modeling ◽  
Selective Laser Sintering ◽  
Laser Sintering ◽  
Consumer Products ◽  
Cad Model ◽  
Final Model ◽  
Fused Deposition ◽  
Layer Manufacturing ◽  
Deposition Modeling

A class of technologies referring to Rapid Prototyping (RP) or Additive or Layer Manufacturing or 3D Printing allows designers to quickly create tangible prototype instead of using two dimensional pictures. This technology produces models and prototype parts from 3D CAD model data created from 3D object digitizing systems. Rapid Prototyping forms parts by joining together liquid, powder or sheet materials. Physical models are built using three basic stages: pre-processing, building, post-processing. Pre-processing consists of generation of CAD model, convert into STL format and slice the STL files into cross sectional layers. In building process, construction of model takes place one layer atop another. Post process consists of cleaning and finishing the final model. Common types of Rapid Prototyping technologies popular in industry are: Steriolithography, Fused Deposition Modeling, Selective Laser Sintering, Laminated Object Manufacturing,3 D Printing. The selection of the processes depends upon the material to be cured to build the final model. Rapid Prototyping technologies are used in various industries like Automobiles, Consumer products, Medical, Academics, Aerospace, Government and Military. This poster talks about few challenges to be considered in Rapid Prototyping like shrinkage and distortion of final model, mechanical performance of RP model and limitations to mass quantity. : Layer Manufacturing, CAD Model, STL format, Steriolithography, Fused Deposition Modeling, Selective Laser Sintering.

scholarly journals USE OF FUSED DEPOSITION MODELING PROCESS IN INVESTMENT PRECISION CASTING AND RISK OF USING SELECTIVE LASER SINTERING PROCESS

2012 ◽  
pp. 226-230
Author(s):  
SIVADASAN M ◽  
N.K SINGH ◽  
ANOOP KUMAR SOOD
Keyword(s):  
Fused Deposition Modeling ◽  
Selective Laser Sintering ◽  
Thermal Response ◽  
Acrylonitrile Butadiene Styrene ◽  
Laser Sintering ◽  
Precision Casting ◽  
Fused Deposition ◽  
Rp Process ◽  
Deposition Modeling ◽  
Metallic Parts

Investment Castings (IC) is one of the most economical ways to produce intricate metallic parts when forging, forming and other casting processes tend to fail. However, high tooling cost and long lead time associated with the fabrication of metal moulds for producing IC wax (sacrificial) patterns result in cost justification problems for customized single casting or small-lot production. Generating pattern using rapid prototyping (RP) process may be one of the feasible alternatives. For this purpose present study assessed the suitability of the fused deposition modeling (FDM) process for creating sacrificial IC patterns by studying FDM fabricated part thermal response at various temperatures. A series of experiments with RP patterns are conducted and a set of test castings are also made in steel for establishing feasibility. The build material used is acrylonitrile butadiene styrene (ABS). As an annexe to this work a concurrent attempt is also made to quantify the risk in using Selective Laser Sintering patterns for Investment Castings. Authors hope this work might establish applicability of ABS in IC and also lead the investigations to theoretically tone down the shell cracking tendency with Selective Laser Sintering patterns when Proprietary Duraform is used as the build material.

Application of Rapid Prototyping Technology on Development of Medical Equipment

2014 ◽  
Vol 1030-1032 ◽  
pp. 2326-2329
Author(s):  
Shi Jian Yang ◽  
Zhen Jie Du ◽  
Hai Hong Kang
Keyword(s):  
Rapid Prototyping ◽  
Medical Equipment ◽  
Fused Deposition Modeling ◽  
Effective Means ◽  
Cad Model ◽  
3D Cad ◽  
Fused Deposition ◽  
Laminated Object Manufacturing ◽  
Deposition Modeling ◽  
The Cost

The prototype of a production can be manufactured directly from its 3D CAD model data by using rapid prototyping technology, and can be renewed conveniently after modifying the CAD model. In this paper, the basic principle, typical prototyping systems are introduced, and rapid prototyping methods such as selected laser sintering of powder material, fused deposition modeling of threadlike material and laminated object manufacturing are presented. An application of rapid prototyping technology on design and development of first aid kit is described in detail. It is indicated that rapid prototyping technology is an effective means to lower the cost and shorten the period of development of medical equipment.

The Progress and Application of Rapid Prototying Technology

2014 ◽  
Vol 697 ◽  
pp. 340-343
Author(s):  
Zhen Wen Zou ◽  
Xi Cong Ye
Keyword(s):  
Rapid Prototyping ◽  
Fused Deposition Modeling ◽  
Selective Laser Sintering ◽  
Three Dimensional ◽  
Development Trend ◽  
Precision Error ◽  
Technology Application ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
Molding Materials

The principle and application of rapid prototyping technology were presented. Several typical rapid prototyping technology were introduced, such as the Stereo Lithography Appearance, Laminated object manufacturing, fused deposition modeling, selective laser sintering, three dimensional spray adhesive technology. The rapid prototyping technology was used in manufacturing, clinical surgical, defense technology, ceramics, dental, and so on. The choke point of rapid prototyping technology application was analyzed, such as molding materials, precision error, and the performance of data sharing software. The future development trend of rapid prototyping technology is prospected also.

scholarly journals МЕТОД СОЗДАНИЯ МОДЕЛЕЙ САМОЛЕТОВ С ПОМОЩЬЮ СИСТЕМ CAD/CAM/CAE И АДДИТИВНЫХ ТЕХНОЛОГИЙ

2018 ◽  
pp. 24-34
Author(s):  
Ю. Б. Витязев ◽  
А. Г. Гребеников ◽  
А. М. Гуменный ◽  
А. М. Ивасенко ◽  
А. А. Соболев
Keyword(s):  
Additive Manufacturing ◽  
Fused Deposition Modeling ◽  
Selective Laser Sintering ◽  
Laser Sintering ◽  
Additive Technologies ◽  
Direct Metal Laser Sintering ◽  
Fused Deposition ◽  
Cad Cam ◽  
Deposition Modeling ◽  
Laser Stereolithography

The analysis of the most applicable in mechanical engineering additive technologies (fused deposition modeling, selective laser sintering, laser stereolithography, direct metal laser sintering) have been performed. Method of creating airplane models using CAD/CAM/CAE systems and additive manufacturing is presented. The results of the application of selective laser sintering and fused deposition modeling for the manufacture of training aircraft models are considered.

Additive Manufacturing as an Important Industry Player for the Next Decades

2019 ◽  
Vol 17 (16) ◽  
pp. 68-71
Author(s):  
Nastase-Dan Ciobota ◽  
Gheorghe Ion Gheorghe ◽  
Veronica Despa
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Rapid Prototyping ◽  
Full Advantage ◽  
Fused Deposition Modeling ◽  
Consumer Products ◽  
Motor Vehicles ◽  
Academic Institutions ◽  
Fused Deposition ◽  
Deposition Modeling

Abstract Additive Manufacturing (AM) concerns all classes of materials – polymers, metals, ceramics and glasses as well. For this reason, AM is in the focus of material scientists from all branches. Leaders of the industry realize that the possibilities of 3D printing are endless, and that these possibilities need ways and means to be taken full advantage of. Today, aerospace engineers are using the fused deposition modeling (FDM) method for rapid prototyping, part manufacturing, and tooling. They are followed by leaders and engineers from industry (industrial machines, motor vehicles, consumer products, medical/dental) but also from academic institutions and government/military.

scholarly journals Some Investigations on Geometric Conformity Analysis of a 3-D Freeform Objects Produced by Rapid Prototyping (FDM) Process

2012 ◽  
pp. 201-205
Author(s):  
V. Vinod Kumar ◽  
G. R. N. Tagore ◽  
A. Venugopal
Keyword(s):  
Rapid Prototyping ◽  
Computer Aided Design ◽  
Fused Deposition Modeling ◽  
Cad Model ◽  
Fused Deposition ◽  
Computer Aided ◽  
Deposition Modeling ◽  
Geometric Deviation ◽  
Aided Design ◽  
Computer Aided Inspection

Rapid prototyping technology is widely used to fabricate 3-D objects with all features of a design using Computer Aided Design (CAD) model. The final fabricated object with rapid prototyping technique has to be evaluated regarding the extent of its closeness to CAD model. Geometric conformity analysis has to be used in determining a measure of the geometric deviation between designed and fabricated 3-D models. In this paper evaluation technique is used to provide an aggregate measure of overall geometric deviation between designed free formed surface and its fabricated geometries using Fused Deposition Modeling (FDM) technique. This approach is typically utilized for large or more complex assemblies such as vehicle interiors and exteriors and full scale aircraft etc. Computer Aided Inspection with CMM aims at development of suitable methodology so as to convert data obtained from CMM to convenient formats to measure dimensional and form errors of freeform surface objects. The present work used in additive manufacturing with the newer methodology of inspecting in rapid product development also.

Development and Application of Four Typical Rapid Prototyping Technologies

2012 ◽  
Vol 160 ◽  
pp. 165-169 ◽  
Author(s):  
Xue Ling Yang ◽  
Di Wang ◽  
Dong Man Yu
Keyword(s):  
Rapid Prototyping ◽  
Fused Deposition Modeling ◽  
Selective Laser Sintering ◽  
Three Dimensional ◽  
Forming Process ◽  
Fused Deposition ◽  
Significant Performance ◽  
Deposition Modeling ◽  
Manufacturing Technologies ◽  
Application Fields

Rapid prototyping (RP) is an advanced manufacturing technology and has obtained widely application in recent years. RP technology can be used to machine complex physical part directly from CAD data without any cutter or technical equipments. A variety of new rapid manufacturing technologies have emerged and developed include Stereo Lithography (SL), Selective Laser Sintering (SLS), Fused Deposition Modeling (FDM), Laminated Object Manufacturing (LOM), and Three Dimensional Printing (3-D Printing). The paper summaries the working principle and discusses the application fields for four typical rapid prototyping technologies. Finally, the significant performance of rapid prototyping for modern industry is discussed. The investigation is beneficial for choosing an optimal forming process in industry.

Comparative Analysis of Different Methods of Rapid Tooling

2005 ◽  
Vol 475-479 ◽  
pp. 2873-2876
Author(s):  
Charles Martin ◽  
J.V. Sasutil ◽  
M. Kouhkan ◽  
E. Lorea ◽  
Rafiq Noorani
Keyword(s):  
Surface Roughness ◽  
Fused Deposition Modeling ◽  
Selective Laser Sintering ◽  
Dimensional Accuracy ◽  
Laser Sintering ◽  
Rapid Tooling ◽  
Composite Manufacturing ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
Overall Performance

The purpose of this experiment was to compare different techniques that help improve conventional tooling. The methods investigated were chosen from both the methods of Rapid Tooling: direct and indirect. Six different methods were selected including, Sand Casting, Investment Casting, Fused Deposition Modeling (FDM), Direct Composite Manufacturing (DCM), Selective Laser Sintering (SLS), and Stereolithography (SLA). Several industrial corporations were contacted to help complete all six tests. Five parameters were selected for the comparison of these samples: dimensional accuracy, tensile strength, surface roughness, time for completion, and weight. Through comparison the strengths and weaknesses of each method was determined. It was found that different methods did better in various parameters. However, Selective Laser Sintering (SLS) seemed to have the best overall performance.

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