Figure 1 - uploaded by Pinar Demircioglu
Content may be subject to copyright.
Source publication
The aim of this study is to investigate the relationship between the fusion temperature and dimensional
accuracy of the 3D printed components. The Computer Aided Design (CAD) model of specimens were
prepared using Autodesk Inventor Software. Then the models were exported to STL file format for rapid
prototyping. Prusa İ3 desktop type 3D printer wit...
Contexts in source publication
Context 1
... dimensional accuracy measurement samples were printed using Prusa İ3 desktop type 3D printer with 90-300 microns layer height manufacturing capacity with the 1.75 mm diameter PLA filament. The printer parameters were set with Simplified3D software (Figure 1). ...
Similar publications
Purpose:
The purpose of this in vitro study was to compare the accuracy of various 3D printers and a milling machine.
Materials and methods:
The die model was designed using CAD (Autodesk Inventor 2018 sp3). The 30 µm cement space was given to the die and the ideal crown of the mandibular left first molar was designed using CAD (ExoCAD). The cro...
This paper focuses on the design, fabrication and control of a 3-DOF robot arm using stepper motors. The robot arm uses three parallelogram mechanisms to position the end-effector of the robot and keep the end-effector always parallel to the horizontal during the robot motion. The robot is designed on the Autodesk Inventor software. Separated parts...
EXTENDED SUMMARY
BACKGROUND
A specific aspect of the hypospadias phenotype that may contribute to long-term outcomes is the presence of ventral penile curvature and the adequacy of its surgical correction. The current gold standard to assess this angle is intraoperative goniometry of an erect penis. 3-dimensional (3D) mapping technologies may overc...
Nowadays, the design and construction of structures with the ability to withstand impact and control energy is of great importance to save human life or equipment. Honeycomb shock absorber structures are the best type of shock absorber due to their low density, high energy efficiency and absorption capacity, low cost and weight. In this research, t...
Additive manufacturing (AM) possess enormous potential to benefit the manufacturing industry. Presently, Rotary Draw Bending (RDB) is one of the most commonly used industrial process for bending metal tubes. RDB processes are carried out by using customized forming tools which are manufactured according to the shape and size of the tube. This resea...
Citations
... Image processing techniques define and measure data such as microstructure, size distribution, and shape definition. 15 In another study, the energy consumption of 3-D printing processes was analyzed by observing the environmental impact. They also recommended energy models for each part, improving energy estimation and optimization and actual production settings. ...
In this study, the cooler type produced with a fused deposition modeling (FDM) 3-D printer, one of the 3-D printing technologies, was investigated using image processing techniques and machine learning algorithms. This study aims to change the cooler design concept used in FDM 3-D printers and use image processing techniques and innovative machine learning algorithms to solve the temperature effect problems on the part. In this study, four different cooler types— no-cooler, A-type, B-type, and C-type—were used with an FDM 3-D printer, and each layer processing image of these parts was captured with a thermal camera. Temperature distribution diagrams of the parts were drawn according to layers using image processing techniques such as the Gaussian filtering method and the Sobel and Canny edge detection techniques. Using three different machine learning algorithms on the temperature data set obtained from the experimental study, cooler types were classified with an accuracy of over 90 %. The results showed that using machine learning algorithms, the most suitable cooler type can be selected with an accuracy of 95 % by the Extreme Gradient Boosting (XGBOOST) algorithm.
... Since the desired product is encountered in a short time, it is a great invention in technology. It can manufacture from hundreds of kinds of materials (plastic, metal, polymer, ceramic, etc.) [3][4][5]. 3D printing methods are FDM (Fused Deposition Modeling), SLS (Selective Laser Sintering), SLA (Stereolithography), PJ (Polyjet), LOM (Layered Object Manufacturing), Binder Jet (Binder Jet Technique). The most preferred type of 3D printing is FDM type 3D printing. ...
The person who has challenges not meeting needs due to the loss of his / her physical, mental and sensorial abilities to a certain extent on account of birth or any reason is defined as 'disabled' if any care or rehabilitation is required. These people have difficulty adapting to social life. Prostheses have been developed to ensure this compatibility. Today, by measuring directly from the patient, the production in place of the organ lost by the patient is carried out suitably. In this study, It was carried out to control muscle signals with EMG sensor prosthetic hand manufactured by a 3D printer. The movement of the fingers was performed by processing the signals received from the EMG sensor with a microcontroller and transmitting them to the servo motors in the form of meaningful values. Findings obtained were evaluated by comparison.
Teknologi Rapid Prototyping (RP) terus berkembang pesat dan memiliki peran penting di berbagai sektor. Salah satu metode yang digunakan dalam teknologi ini adalah Fused Deposition Modelling (FDM), yang melibatkan proses melelehkan bahan termoplastik dengan menggunakan mekanisme ekstruder. Mesin pencetak 3D tipe FDM mengendalikan pergerakan nozzle secara komputerisasi, yang menghasilkan berbagai arah gerakan, termasuk sejajar dengan sumbu x (0°), y (90°), dan juga diagonal (45°). Perbedaan dalam arah ini memiliki dampak pada karakteristik mekanis dari kekuatan lentur pada cetakan yang dihasilkan. Penelitian ini melibatkan pengujian tekan (Bending test) sesuai dengan standar ASTM D790 dengan menggunakan mesin pengujian Beste KJ-1065. Spesimen pengujian dibuat dalam tiga jenis yang berbeda, dengan pengaturan arah nozzle yang memiliki perbedaan sudut external infill angle offset dan internal infill angle offset, yaitu pada sudut 0° (sejajar sumbu X), 45° (sejajar diagonal), dan 90° (sejajar sumbu Y). Hasil penelitian menunjukkan bahwa arah nozzle pada mesin pencetak 3D tipe FDM juga mempengaruhi kekuatan tekan/lentur produk yang dihasilkan. Kekuatan tekan/lentur maksimum terbesar ditemukan pada produk dengan arah nozzle 0°, mencapai 65.21 MPa, sementara yang terendah terjadi pada produk dengan arah nozzle 90° dalam kondisi horizontal, mencapai 45.18 MPa. Kata kunci : Rapid prototyping, 3D Printing, Fused Deposition Modelling
Most manufacturing and service organizations and enterprises have recently established integrated management systems (IMS) to increase their competitive advantages in world markets. This study aims to increase the efficiency of the IMS implementation by developing an improved conceptual model for IMS and recommendations to classify management systems requirements, using analytical and comparative review and analysis of different scientific approaches in the field of IMS, graphical methods of system analysis. As a result of the performed research, five classes of requirements have been developed: specific, analogical, identical, and individually specific requirements of international requirements and additionally standard requirements of IMS. According to the supplied classification, zone of integration and zone of integrated requirements have been supplied, allowing distinguishing structural elements that conform to the distinct requirements of worldwide requirements. Definitions of concepts “integrated management system” and “common requirements of integrated management system” and for that reason, graphical conceptual improved model for developing IMS has been given.KeywordsIntegrated management systemClassification of requirementsConceptual modelLife-cycle assessmentManufacturing innovation
Today, the additive manufacturing (AM) method is used in aerospace, defense, and biomedical fields due to its advantages. However, it is important to be able to control the production environment in these production methods. This study investigates the effects of the air control unit (ACU) in production with the fused deposition modeling (FDM) method on dimensional accuracy. Gyroid and body-centered cubic (BCC) porous structures were produced in an AC and non-AC environment. After production, the dimensional accuracy and surface quality of the porous structure structures were investigated. Significant surface defects were observed in the porous structure structures produced in a non-AC environment. Better quality surfaces were obtained in the productions carried out by providing AC. In addition, in the results obtained, it was observed that there was an average of 2% deviation in terms of dimensions in the productions carried out using the ACU and an average of 2.5% deviation in the productions without ACU.
KeywordsAdditive manufacturingAir controllerFDMDimensional accuracyProcess innovation
For polymeric materials, FDM provides limitations in accuracy and surface finish. Polymeric 3D printed parts have a rough surface because of the filament deposition, texture of the slices laid and staircase effect. Application of surface coatings to these parts may improve mechanical properties, including surface texture and dimensions accuracy. Recent studies indicate development of surface-coated 3D printed polymeric parts primarily for use in automobiles, aviation, ships, food packaging, electrical, and textile applications. Researchers have studied the impact of surface coatings on surface finish and dimensional accuracy. Various processes, such as icing-delay, anti-frosting, and self-cleaning, benefit from super hydrophobic surface. Super hydrophobic surfaces are characterized by important characteristics, like durability and storage, corrosion resistance. Self-healing polymers are emerging as a novel smart material as they possess the ability to heal upon damage without any external mediation. These can appear in a variety of forms, intrinsic or extrinsic, and can be made to take different forms. This paper presents insights into the state of research being carried out in the field of surface characterization especially on 3D printed polymeric parts.