Laser milling

2002 ◽  
Vol 216 (5) ◽  
pp. 657-667 ◽  
Author(s):  
D T Pham ◽  
S S Dimov ◽  
P V Petkov ◽  
S P Petkov
Keyword(s):  
Computer Aided Design ◽  
Nickel Alloys ◽  
Three Dimensional ◽  
Hardened Steel ◽  
Advantages And Disadvantages ◽  
Laser Milling ◽  
Wide Range ◽  
Aided Design ◽  
Physical Phenomena ◽  
Complex Parts

Laser milling is a new manufacturing process that has attracted much attention from engineers and researchers for the last decade. The process allows complex parts and tooling inserts to be fabricated directly from three-dimensional computer aided design (CAD) data in a wide range of advanced engineering materials such as ceramics, hardened steel, titanium and nickel alloys. The paper starts with a description of the physical phenomena underlying the process and the factors influencing its performance. It then outlines the machining techniques that can be utilized in laser milling. The paper concludes with a discussion of the advantages and disadvantages of the process and a summary of its application areas.

Application of Computer-Aided Visual in Advertising Design

2013 ◽  
Vol 475-476 ◽  
pp. 1517-1521
Author(s):  
Qing Gang Yang ◽  
Meng Zhang ◽  
Chang Xiao
Keyword(s):  
Computer Technology ◽  
Computer Aided Design ◽  
Three Dimensional ◽  
Television Advertising ◽  
Application Technology ◽  
Visual Effects ◽  
Wide Range ◽  
Computer Aided ◽  
Visual Impact ◽  
Aided Design

The three-dimensional computer technology currently has in various engineering fields have a wide range of applications, all the three-dimensional visual effects technology can bring us visual impact, the use of three-dimensional computer technology produced by the television advertising more easily accepted by the audience, this thesis in the three-dimensional computer-aided design advertising design application technology.

scholarly journals 3D Printing of Human Microbiome Constituents to Understand Spatial Relationships & Shape Parameters in Bacteriology

2021 ◽  
Vol 83 (3) ◽  
pp. 188-190
Author(s):  
Jacques Izard ◽  
Teklu Kuru Gerbaba ◽  
Shara R. P. Yumul
Keyword(s):  
Computer Aided Design ◽  
Three Dimensional ◽  
Human Microbiome ◽  
Digital Models ◽  
Ecological Relationships ◽  
Wide Range ◽  
3D Printers ◽  
Visuospatial Information ◽  
Aided Design ◽  
3D Digital Models

Effective laboratory and classroom demonstration of microbiome size and shape, diversity, and ecological relationships is hampered by a lack of high-resolution, easy-to-use, readily accessible physical or digital models for use in teaching. Three-dimensional (3D) representations are, overall, more effective in communicating visuospatial information, allowing for a better understanding of concepts not directly observable with the unaided eye. Published morphology descriptions and microscopy images were used as the basis for designing 3D digital models, scaled at 20,000×, using computer-aided design software (CAD) and generating printed models of bacteria on mass-market 3D printers. Sixteen models are presented, including rod-shaped, spiral, flask-like, vibroid, and filamentous bacteria as well as different arrangements of cocci. Identical model scaling enables direct comparison as well as design of a wide range of educational plans.

scholarly journals Software for Bioprinting

2020 ◽  
Vol 6 (3) ◽  
Author(s):  
Catherine Pakhomova ◽  
Dmitry Popov ◽  
Eugenii Maltsev ◽  
Iskander Akhatov ◽  
Alexander Pasko
Keyword(s):  
Computer Aided Design ◽  
Research Work ◽  
Three Dimensional ◽  
Software Tools ◽  
Primary Objective ◽  
Future Research ◽  
Three Dimensional Printing ◽  
Advantages And Disadvantages ◽  
Volume Modeling ◽  
Aided Design

The bioprinting of heterogeneous organs is a crucial issue. To reach the complexity of such organs, there is a need for highly specialized software that will meet all requirements such as accuracy, complexity, and others. The primary objective of this review is to consider various software tools that are used in bioprinting and to reveal their capabilities. The sub-objective was to consider different approaches for the model creation using these software tools. Related articles on this topic were analyzed. Software tools are classified based on control tools, general computer-aided design (CAD) tools, tools to convert medical data to CAD formats, and a few highly specialized research-project tools. Different geometry representations are considered, and their advantages and disadvantages are considered applicable to heterogeneous volume modeling and bioprinting. The primary factor for the analysis is suitability of the software for heterogeneous volume modeling and bioprinting or multimaterial three-dimensional printing due to the commonality of these technologies. A shortage of specialized suitable software tools is revealed. There is a need to develop a new application area such as computer science for bioprinting which can contribute significantly in future research work.

scholarly journals Modeling the Effect of Different Support Structures in Electron Beam Melting of Titanium Alloy Using Finite Element Models

Metals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 806 ◽  
Author(s):  
Usama Umer ◽  
Wadea Ameen ◽  
Mustufa Haider Abidi ◽  
Khaja Moiduddin ◽  
Hisham Alkhalefah ◽  
...  
Keyword(s):  
Finite Element ◽  
Electron Beam ◽  
Computer Aided Design ◽  
Electron Beam Melting ◽  
Three Dimensional ◽  
Finite Element Models ◽  
Three Dimensional Objects ◽  
Powder Particles ◽  
Aided Design ◽  
Complex Parts

Electron beam melting (EBM) technology is a novel additive manufacturing (AM) technique, which uses computer controlled electron beams to create fully dense three-dimensional objects from metal powder. It gives the ability to produce any complex parts directly from a computer aided design (CAD) model without tools and dies, and with variety of materials. However, it is reported that EBM has limitations in building overhang structures, due to the poor thermal conductivity for the sintered powder particles under overhang surfaces. In the current study, 2D thermo-mechanical finite element models (FEM) are developed to predict the stresses and deformation associated with fabrication of overhang structures by EBM for Ti-6Al-4V alloy. Different support structure geometries are modeled and evaluated. Finally, the numerical results are validated by experimental work.

Computer-aided design and optimization of centrifugal pumps

2005 ◽  
Vol 219 (3) ◽  
pp. 187-193 ◽  
Author(s):  
M Asuaje ◽  
F Bakir ◽  
S Kouidri ◽  
R Noguera ◽  
R Rey
Keyword(s):  
Performance Analysis ◽  
Computer Aided Design ◽  
Fluid Dynamic ◽  
Three Dimensional ◽  
Centrifugal Pumps ◽  
Design And Optimization ◽  
Design Software ◽  
And Performance ◽  
Aided Design ◽  
Physical Phenomena

Improvement in computer power and the development of numerical computational methods over the last few years have allowed the emergence of computational fluid dynamic (CFD) codes, making possible the numerical simulation of flow and energy transfer in turbomachines. To improve the efficiency of these tools, fast design software must be used. Within the framework of the optimization process of centrifugal pumps, HELIOX software was developed. It is a tool for design and performance analysis of centrifugal pumps. HELIOX allows quick design of new pumps and improvement of existing ones. HELIOX's performance analysis has been validated through many industrial cases: approximately 100 machines of different sizes and mechanical power. Heliox can be linked to quasi-and three-dimensional analysis tools; these tools enable a better understanding of physical phenomena so as to control the flow fields inside pumps.

Fabrication of 3D Temperature Sensor Using Magnetostrictive Inkjet Printhead

2020 ◽  
Vol 64 (5) ◽  
pp. 50405-1-50405-5
Author(s):  
Young-Woo Park ◽  
Myounggyu Noh
Keyword(s):  
Flexible Electronics ◽  
Inkjet Printing ◽  
Temperature Sensor ◽  
Computer Aided Design ◽  
Low Cost ◽  
Three Dimensional ◽  
Drop On Demand ◽  
Aided Design ◽  
Nanoparticle Ink ◽  
Inkjet Printhead

Abstract Recently, the three-dimensional (3D) printing technique has attracted much attention for creating objects of arbitrary shape and manufacturing. For the first time, in this work, we present the fabrication of an inkjet printed low-cost 3D temperature sensor on a 3D-shaped thermoplastic substrate suitable for packaging, flexible electronics, and other printed applications. The design, fabrication, and testing of a 3D printed temperature sensor are presented. The sensor pattern is designed using a computer-aided design program and fabricated by drop-on-demand inkjet printing using a magnetostrictive inkjet printhead at room temperature. The sensor pattern is printed using commercially available conductive silver nanoparticle ink. A moving speed of 90 mm/min is chosen to print the sensor pattern. The inkjet printed temperature sensor is demonstrated, and it is characterized by good electrical properties, exhibiting good sensitivity and linearity. The results indicate that 3D inkjet printing technology may have great potential for applications in sensor fabrication.

scholarly journals Automatized Evaluation of Students’ CAD Models

2021 ◽  
Vol 11 (4) ◽  
pp. 145
Author(s):  
Nenad Bojcetic ◽  
Filip Valjak ◽  
Dragan Zezelj ◽  
Tomislav Martinec
Keyword(s):  
Computer Aided Design ◽  
Three Dimensional ◽  
Computer Application ◽  
Test Cases ◽  
Cad Model ◽  
Computer Solution ◽  
3D Cad ◽  
Computer Aided ◽  
Cad Models ◽  
Aided Design

The article describes an attempt to address the automatized evaluation of student three-dimensional (3D) computer-aided design (CAD) models. The driving idea was conceptualized under the restraints of the COVID pandemic, driven by the problem of evaluating a large number of student 3D CAD models. The described computer solution can be implemented using any CAD computer application that supports customization. Test cases showed that the proposed solution was valid and could be used to evaluate many students’ 3D CAD models. The computer solution can also be used to help students to better understand how to create a 3D CAD model, thereby complying with the requirements of particular teachers.

scholarly journals Computer-aided design of multi-purpose steel headframes for mines with a new technical level

2020 ◽  
Vol 174 ◽  
pp. 01048
Author(s):  
Elena Kassikhina ◽  
Vladimir Pershin ◽  
Nina Rusakova
Keyword(s):  
Cross Sections ◽  
Computer Aided Design ◽  
Information Technologies ◽  
Three Dimensional ◽  
Numerical Control ◽  
Technical Level ◽  
Resource Saving ◽  
Existing Structures ◽  
Set Up ◽  
Aided Design

The existing structures of the steel sinking headgear and permanent headframe do not meet the requirements of resource saving (metal consumption and manpower input at installation), and the present methods of the headframe designing do not fully reflect recent possibilities of applying of the advanced information technologies. Technical level of the modern software makes it possible for designers to set up multiple numerical experiments to create a computer simulation that allows solving the problem without field and laboratory experiments, and therefore without special costs. In this regard, a mathematical simulation has been developed and based on it, software to select cross-sections of multi- purpose steel headframe elements and to calculate proper weight of its metal structures depending on the characteristics and hoisting equipment. A headframe drawing is displayed, as the results of the software work, including list of elements, obtained optimal hoisting equipment in accordance with the initial data. The software allows speeding up graphic work and reducing manpower input on calculations and paper work. The software allows developing a three-dimensional image of the structure and its functional blocks, based on the obtained initial parameters, as well as developing control software for units with numerical control (NC) in order to manufacture multi-purpose headframes.

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