Application Of Rapid Prototyping Technology Research Articles

Application of rapid prototyping technology in pump engineering

The article presents the results of the use of rapid prototyping technology when modifying the impeller of a centrifugal pump in order to increase efficiency. As a result of the implementation of the technology, the influence of parameters such as the printing speed of the main layers, the printing speed of the current layers, the thickness of the layers on the geometric accuracy of printed products was studied. According to the results of experiments, it was revealed the effect of the feed rate on the OZ axis, an increase in speed will lead to lower surface quality, higher roughness. The distance between the layers is 0,15 mm/s, getting a roughness of Ra 6,3 microns, and in the right case we used a distance of 0,05 mm/s between the layers, getting a roughness of Ra1,6 microns. The article presents the results of the analysis of the effect of exposure time and exposure time in the UV chamber on the hardness of printed products. The article presents a method for determining and compensating the geometry of prototypes based on reverse engineering technology based on the use of an optical scanner. The tests of a centrifugal pump with a prototype of a modified wheel confirm the need for such innovations as rapid prototyping to shorten the design cycle of new products, as well as reduce the cost of their development.

Advances in Orthotic and Prosthetic Manufacturing: A Technology Review.

In this work, the recent advances for rapid prototyping in the orthoprosthetic industry are presented. Specifically, the manufacturing process of orthoprosthetic aids are analysed, as thier use is widely extended in orthopedic surgery. These devices are devoted to either correct posture or movement (orthosis) or to substitute a body segment (prosthesis) while maintaining functionality. The manufacturing process is traditionally mainly hand-crafted: The subject’s morphology is taken by means of plaster molds, and the manufacture is performed individually, by adjusting the prototype over the subject. This industry has incorporated computer aided design (CAD), computed aided engineering (CAE) and computed aided manufacturing (CAM) tools; however, the true revolution is the result of the application of rapid prototyping technologies (RPT). Techniques such as fused deposition modelling (FDM), selective laser sintering (SLS), laminated object manufacturing (LOM), and 3D printing (3DP) are some examples of the available methodologies in the manufacturing industry that, step by step, are being included in the rehabilitation engineering market—an engineering field with growth and prospects in the coming years. In this work we analyse different methodologies for additive manufacturing along with the principal methods for collecting 3D body shapes and their application in the manufacturing of functional devices for rehabilitation purposes such as splints, ankle-foot orthoses, or arm prostheses.

Application of Rapid Prototyping Technology in the Manufacturing of Turbine Blade With Small Diameter Holes

Abstract The article presents the possibilities++ of using Rapid Prototyping (RP) technology in the manufacturing of turbine blades with small diameter holes. The object under investigation was gas turbine blade with small diameter cooling holes and holes for generating longitudinal vortices. A turbine blade model was produced by means of Direct Metal Laser Sintering (DMLS) technology and subsequently validated in terms of detection and accuracy of the obtained holes. The application of the computer tomography and digital radiography technique resulted in obtaining a series of cross-sections of the turbine blade model with a series of holes. Particular attention was pointed out at the investigation of the locations of micro-holes with a diameter of 0.3 mm. It turned out that it was impossible to make such small holes by the RP method. In the following part the results of the study on the possibilities of making the micro-holes using electrical discharge method have been presented. In addition, proposition of further works such as the development of the considerations and issues discussed in this article, has been offered.

Application of rapid prototyping technology on nasoalveolar molding for cleft lip and palate

To apply rapid prototyping (RP) technology on pre-fabricating nasoalveolar molding (NAM) appliances, and compare clinical outcomes and complications with traditional NAM appliances. Between June 2014 and September 2016, 39 children with unilateral cleft lip and palate were included in study. Seventeen children (test group) had received novel NAM protocol by pre-fabricating NAM appliances using RP technology, and the other 22 children (control group) had received traditional NAM protocol. There was no significant difference in gender, age, the side of cleft lip and palate, and the width of the alveolar cleft gap before treatment between 2 groups ( P>0.05). The change of width of the alveolar cleft gap, number of clinic visit, treatment time, and complications were compared between 2 groups. The number of clinic visit was less in test group than in control group ( P<0.05). There was no significant difference in treatment time between 2 groups ( P>0.05). During treatment, there was 16 children (72.2%) of skin irritation, 3 (13.6%) of mucosal ulceration, 1 (4.5%) of intraoral bleeding, 1 (4.5%) of alveolar arch T-shap asymmetry in control group. And there were 11 children (64.7%) of skin irritation, 3 (17.6%) of mucosal ulceration in test group. There was no significant difference in the incidence of complications between 2 groups ( P>0.05). After treatment, the anterior alveolar cleft width, horizontal cleft width, sagittal cleft width, antero-medial alveolar ridges angle of the healthy side, angle between anterior alveolar and posterior alveolar baseline of the healthy side, perpendicular distance from buccal frenum point to sagittal line were significantly reduced when compared with the values before treatment ( P<0.05). The angle between the anterior segments of two sides, angle between buccal frenum point and posterior baseline were significant increased when compared with the values before treatment ( P<0.05). There was no significant difference in the differences between pre- and post-treatment of above indexes between 2 groups ( P>0.05). There also was no significant difference in posterior alveolar width, the width between the middle parts of alveolar, vertical cleft width, antero-medial alveolar ridges angle of the affected side, and angle between anterior alveolar and posterior alveolar baseline of the affected side between pre- and post-treatment in each group ( P>0.05). Clinical outcome of novel approach was equivalent to traditional protocol; however, the number of clinic visit decreased. With improving of RP technology, it would provide a more consistency and convenient way for sequential treatment with cleft lip and palate.

Rapid Prototyping Technologies for Manufacturing and Maintenance Activities

AbstractThe paper deals with the direct application of Rapid Prototyping technologies for parts and spare parts production in production companies and the economic effect by making use of this technology.Traditional production technologies are technologies such as forging, cutting, machining, etc. These technologies are widely accepted and the teething troubles are solved. Rapid Prototyping technologies such as 3D printing on the other hand came into the focus in the recent years when the technologies and the produced quality gradually advanced. Providing flexibility and time efficiency the technology should also have a practical application in production. This paper has the aim to provide a case-study based on existing cost figures to show that these technologies are not limited to prototype developments.

Indirect fabrication of hydroxyapatite/β-tricalcium phosphate scaffold for osseous tissue formation using additive manufacturing technology

Patient specific HA/β-TCP scaffold were fabricated using an indirect fabrication approach which involves the application of rapid prototyping technology. β-TCP powder with 10, 20 and 30 % HA concentrations were analyzed for different sintering temperatures. Scaffolds were evaluated by Scanning Electron Microscopy, X-ray diffraction, compression tests, Fourier transform infrared spectroscopy and cytotoxicity tests using human osteosarcoma cell line. Results include HA/β-TCP scaffold porosity, volumetric shrinkage, mechanical properties, bonding, structural phase change and cytotoxicity.

A Study on the Application of Rapid Proto-Typing Technology to Innovations in Product Design

A Study on the Application of Rapid Proto-Typing Technology to Innovations in Product Design

Cost optimization of additive manufacturing in wood industry

Software packages for 3D design and additive manufacturing (AM) technologies, initially known as rapid prototyping (RP) have emerged during the last years, as a cutting edge solutions for custom prototyping. These new tools and technologies lower the design costs, but also allow rapid creation of fully functional components. This paper describes the FDM and 3DP rapid prototyping technologies that were used to create elements and tools in the wood industry field. Total costs of manufacturing related to the fabrication of sample elements and tools are analysed. One of the main recognised issues of wider application of rapid prototyping technologies is their still very high costs related to all production aspects, starting with a lack of available materials, material cost, up to high cost of available commercial equipment, usually focused only on specific solutions and limited range of materials. Generally, AM costs can be divided into the group of fixed costs and variable ones. This paper deals with the optimization of the production costs of fabricated elements in case of small-scale production, and optimization of variable costs (processing and post-processing, costs of enforcement, and material costs).

The Application of Rapid Prototyping Technology and Quality Functional Deployment (QFD) approach in enhancing the Endotracheal Tube Holder Model in Medical Application

This paper presents a development of a current design the Endotracheal tube holding device. At present, the medical teams have faced a lot of problems when doing the endotracheal intubation. Misplacement of endotracheal tube into the esophagus and extubation due to patient’s movement are among the problems by surgeons during medical treatment. This is important as the successful management of the potential risk can reduce the number of patients who suffer a serious consequence of endtracheal tube therapy such as a potential risk to patient safety, with associated risks varying from minor complications to death. This paper presents a product design specification for endotracheal tube-holding device is translated from user’s requirements by employing Quality Functional Deployment (QFD). Several design concepts are generated by using CATIA software to be evaluated by endotracheal tube-holding device users for concept selection. Selection of design concept was done in two phases which are concept screening and concept scoring. For selecting the design concept for further development, a prototype of endotracheal tube was fabricated by using Fused Deposition Modelling (FDM).

The Progress and Application of Rapid Prototying Technology

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.

Application of Rapid Prototyping Technology on Development of Medical Equipment

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.

Application of Rapid Prototyping Technology in Product Design

The rapid prototyping technology was introduced, including its definition, principle and characteristics. The advantages of rapid prototyping technology in new product development were analyzed. Application of rapid prototyping technology in design of mechanical parts, industrial model, medical model, ceramic products, automobile model and products based on ergonomics was discussed. The feasibility of rapid prototyping technology in product design and the optimization direction was prospected.

Application of Rapid Prototyping Technology in Automobile Manufacturing Industry

Rapid prototyping technology manufactures the product prototype can be generated directly from 3D CAD data and can be regenerated easily after the design was modified. This paper introduces the principle of rapid prototyping technology and the applications of rapid prototyping technology in automobile design, development and production. It is notable that the rapid prototyping technology is an effective tool to reduce the development cost of automobile products and shorten the development cycle.

Application of Rapid Prototyping Technology in Intelligent Optimization Design Area

Rapid Prototyping (RP) can be defined as a group of techniques used to quickly fabricate a scale model of a part or assembly using three-dimensional Computer Aided Design (CAD) data. What is commonly considered to be the first Rapid Prototyping technique, Stereolithography was developed by 3D Systems of Valencia, CA, USA. The company was founded in 1986, and since then, a number of different Rapid Prototyping techniques have become available. In paper are presented possibilities of Rapid Prototyping application in area of intelligent optimization design.

Evaluation of Parts Produced by a Novel Additive Manufacturing Process

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.

Application of Rapid Prototyping Technology to Rapid Development of Flat Panel (FP) Photobioreactor Case for Microalgae

Application of Rapid Prototyping Technology to Rapid Development of Flat Panel (FP) Photobioreactor Case for Microalgae

Effective Utilization of Rapid Prototyping Technology

Technology of Rapid Prototyping (RP) presents the technique that leads to quick manufacturing of real model using the scaling with support of three-dimensional software solution running in computer environment (CAD). First RP technique, Stereolithography, was developed by 3D Systems of Valencia, CA, USA. The company was founded in 1986, and since then, a number of different RP techniques have become available. Article deals with basic characteristics and problems in area of technology of Rapid Prototyping with focus to Fused Deposition Modeling. It brings in the project of experimental gearbox design and its manufacturing with application of Rapid Prototyping technology. The work was realized by students and employees of Faculty of Manufacturing Technologies in Presov, Slovakia. Model with four gears was realized together with its gear changing mechanism. Production of gearbox was connected with problems arising from size of individual parts and included also the realization of final gearbox assembly.

Principle of Error Analysis for Rapid Prototyping Technology

Parts precision is one of the key points in industrial application of rapid prototyping technology (RPT), and also the pivot of RPT research, but presently high precision is hard to achieve. This paper focuses the emphases on the principle of error analysis. Obtain chord errors corresponding to the number of triangles with pro/E software during the STL, and the formula for computing stair errors taking the quarter of sphere for an example during the slicing. In the end, propose the measures to improve the principled errors, viz. sloping slicing, adaptive slicing, direct slicing and so on, and further propose the theoretical range of adaptive slicing thickness.

Application of Rapid Prototyping Technology in Urban Planning and Architectural Model

On the basis of discussing the superiority of architectural model applied in urban planning and architectural design, the defect of traditional architectural model was analyzed, and the theory of rapid prototyping technology was introduced. Architectural model flowchart for urban planning and architectural design based on rapid prototyping technology was put forward. And the realization for the flowchart in computer was also drawn. With two architectural model examples being applied, it was shown that the model based on rapid prototyping technology has great advantages in urban planning and architectural design.

Application of rapid prototyping technology in dentistry

Rapid prototyping (RP) technologies are the most widely applied and known fabrication methods that are based on additive fabrication principles. RP represents a new set of manufacturing processes that can fabricate a representative three-dimensional (3D) physical model of any shape directly from a computer-aided design (CAD) model by using layer fabrication technique. As the result of the development in modern imaging, computerised 3D data processing and advanced engineering techniques, medical prostheses like dental prostheses can be accurately designed from CAD technique and the physical model of prostheses can be produced through RP, rapid tooling and computer-aided manufacturing technology. This paper discusses the application of RP technology in dentistry and methods of design and fabrication of dental prostheses by using RP technologies.