The Working Principle and Main Technical Factors Influencing on Finished Accuracy of Rapid Prototyping

2011 ◽  
Vol 480-481 ◽  
pp. 1554-1558
Author(s):  
Ji Bao Liu ◽  
Di Wang ◽  
Xiao Jing Li ◽  
Zhi Hua Gao

Rapid prototyping (RP) is a digital manufacture technology based on discrete stacking technology. RP technology can be used to machine complex physical part directly from CAD data without any professional apparatus. The paper also summarized four main RP technologies, discussed the working principle and compared the application fields, machining cost and process parameters in detailed. Finally, the author prospected the significant performance of RP for modern industry, analyzed the merits and faults and indicates the development object for RP technology.

2011 ◽  
Vol 179-180 ◽  
pp. 869-874
Author(s):  
Dong Man Yu ◽  
Jia Ping Liu ◽  
Chang Pei Shang

Fabrication pioneer production with lower cost and shorter cycle is a major mission for an enterprise, and rapid prototyping is a digital manufacture technology based on discrete stacking, which can meet the requirement. Rapid prototyping technology can be used to machine complex physical part directly from CAD data without any cutter or technical equipments. The paper summaries the working principle and compares the application fields, machining cost and process parameters for four typical rapid prototyping technology. Finally, the significant performance of rapid prototyping for modern industry is discussed, and the merits and faults is analysed. The investigation is beneficial for choosing an optimal forming process in industry.


2012 ◽  
Vol 549 ◽  
pp. 1046-1050 ◽  
Author(s):  
Hao Wang ◽  
Hong Ge Zhang

Rapid prototyping has quickly grown in use and importance in industrial applications during the past decade. Rapid prototyping, though a relatively new discipline, has proven to be a valuable tool in the reduction of the time and cost associated with developing new products. This paper summaries the working principle and compares the application fields, machining cost and process parameters for four typical RP technology. The author discusses the significant performance for modern industry, analyses the merits and faults and indicates the development object for RP technology.


2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Raju Bangalore Singe Gowda ◽  
Chandra Sekhar Udayagiri ◽  
Drakshayani Doulat Narendra

Rapid prototyping (RP) has evolved as frontier technology in the recent times, which allows direct transformation of CAD files into functional prototypes where it tremendously reduces the lead time to produce physical prototypes necessary for design verification, fit, and functional analysis by generating the prototypes directly from the CAD data. Part quality in the rapid prototyping process is a function of build parameters such as hatch cure depth, layer thickness, orientation, and hatch spacing. Thus an attempt was made to identify, study, and optimize the process parameters governing the system which are related to part characteristics using Taguchi experimental design techniques quality. The part characteristics can be divided into physical part and mechanical part characteristics. The physical characteristics are surface finish, dimensional accuracy, distortion, layer thickness, hatch cure, and hatch file, whereas mechanical characteristics are flexural strength, ultimate tensile strength, and impact strength. Thus, this paper proposes to characterize the influence of the physical build parameters over the part quality. An L9 orthogonal array was designed with the minimum number of experimental runs with desired parameter settings and also by analysis tools such as ANOVA (analysis of variance). Establishment of experimentally verified correlations between the physical part characteristics and mechanical part characteristics to obtain an optimal process parameter level for betterment of part quality is obtained. The process model obtained by the empirical relation can be used to determine the strength of the prototype for the given set of parameters that shows the dependency of strength, which are essential for designers and RP machine users.


2012 ◽  
Vol 160 ◽  
pp. 165-169 ◽  
Author(s):  
Xue Ling Yang ◽  
Di Wang ◽  
Dong Man Yu

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.


2021 ◽  
Vol 58 (3) ◽  
pp. 198-209
Author(s):  
Vasile Cojocaru ◽  
Doina Frunzaverde ◽  
Dorian Nedelcu ◽  
Calin-Octavian Miclosina ◽  
Gabriela Marginean

Initially developed as a rapid prototyping tool for project visualization and validation, the recent development of additive manufacturing (AM) technologies has led to the transition from rapid prototyping to rapid manufacturing. As a consequence, increased attention has to be paid to the mechanical, chemical and physical properties of the printed materials. In mechanical engineering, the widespread use of AM technologies requires the optimization of process parameters and material properties in order to obtain components with high, repeatable and time-stable mechanical properties. One of the main problems in this regard is the anisotropic behavior of components made by additive manufacturing, determined by the type of material, the 3D printing technology, the process parameters and the position of the components in the printing space. In this paper the influence of the printing orientation angle on the tensile behavior of specimens made by material jetting is investigated. The aim was to determine if the positioning of components at different angles relative to the X-axis of the printer (and implicitly in relation to the multijet printing head) contributes to anisotropic behavior. The material used was a photopolymer with a mechanical strength between 40 MPa and 55 MPa, according to the producer. Four sets of tensile test specimens were manufactured, using flat build orientation and positioned on the printing table at angles of 0˚, 30˚, 60˚ and 90˚ to the X-axis of the printer. Comparative analysis of the mechanical behavior was carried out by tensile tests and microscopic investigations of the tensile test specimens fracture surfaces.


2021 ◽  
Author(s):  
De Liu ◽  
Xiaoming Pan ◽  
Zhiyang Gu ◽  
Hui Qiu

Abstract Polishing determines the final surface quality of the aero engine, which have great influence on its working performance and working life. By analyzing the structure and working principle of the flexible self-adaptive polishing platform of the blisk, the abrasive cutting model of the flap disc is established. The theoretical calculation of the effect of elastic deformation during the polishing process on the contact length of flap disc and blisk. The model of polishing force, polishing heat and temperature field during the polishing process of the flap disc are established and analyzed. Single factor method is used to analyze the influence of process parameters on polishing force, polishing temperature, roughness and specific polishing energy. Finally, the polishing test shows that the optimized process parameters improve the polished surface quality and meet the requirements of the blade polishing process.


Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 783 ◽  
Author(s):  
Matthias Kahr ◽  
Wilfried Hortschitz ◽  
Harald Steiner ◽  
Michael Stifter ◽  
Andreas Kainz ◽  
...  

This paper reports a novel 3D printed MEMS magnetometer with optical readout, which demonstrates the advantages of 3D printing technology in terms of rapid prototyping. Low-cost and fast product development cycles favour 3D printing as an effective tool. Sensitivity measurement with such devices indicate high accuracy and good structural performance, considering material and technological uncertainties. This paper is focusing on the novelty of the rapid, 3D-printing prototyping approach and verification of the working principle for printed MEMS magnetometers.


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