New Technologies for Increasing the Capacities of WEDM Machines

2012 ◽  
Vol 713 ◽  
pp. 97-102
Author(s):  
Jose Antonio Sánchez ◽  
Soraya Plaza ◽  
J.M. Ramos ◽  
B. Izquierdo ◽  
N. Ortega ◽  
...  
Keyword(s):  
High Speed ◽  
New Technologies ◽  
Electrical Discharge Machining ◽  
Low Cost ◽  
Machine Intelligence ◽  
Added Value ◽  
Research Approach ◽  
Integrated Research ◽  
Industrial Needs ◽  
New Generation

The process of Wire Electrical Discharge Machining (WEDM) has experienced a dramatic growth in the last years. Together with the new requirements imposed by customer needs, globalization of the markets has brought about a new scenario in which competitiveness is the keyword. In the case of WEDM, it is only possible from a perspective that integrates developments in hardware, software and know-how, to generate the required added-value with respect to competitors. For instance, it is not enough to give an answer to the demand of a high-speed first cut: economy must be achieved together with a high accuracy and using low-cost wires. In this paper the research actions currently running aiming at the development of a new generation of WEDM machines are presented. The objective of this paper is to present an integrated research approach focused on industrial needs, covering the following aspects: Accuracy and productivity; automation and machine intelligence; eco-efficiency.

The Thermal Effect of Unconventional Cutting Technologies on Steel DIN 1.7102

2020 ◽  
Vol 994 ◽  
pp. 78-87
Author(s):  
Pavel Stoklásek ◽  
Aleš Mizera ◽  
Miroslav Manas ◽  
Martin Ovsik
Keyword(s):  
Thermal Effect ◽  
High Speed ◽  
New Technologies ◽  
Electrical Discharge Machining ◽  
Thin Sheet ◽  
Cutting Edge ◽  
Steel Sheets ◽  
Complex Shapes ◽  
Cut Surface

New technologies known as unconventional technologies make it possible to cut complex shapes at high speed and with relatively high precision. In many cases, especially in the case of thin sheet, created parts produced do not require any further treatment by post-machining. Knowledge of the accompanying phenomena, such as the heat-affected zone (HAZ) or the surface quality of the cutting edge, is necessary, for example, to assess further machining of material in these areas (e.g. drilling and reaming holes or finishing operations on the cutting edge). In this study, the thermal effect of four unconventional cutting technologies – laser, plasma, wire electrical discharge machining (wire EDM) and waterjet cutting on the cut surface of steel sheets is investigated. Steel 1.7102 (DIN 54SiCr6) was chosen for purpose of this study. The width of the HAZ and the nanohardness beneath the cut surface were analyzed.

scholarly journals Применение оптических технологий для изучения и идентификации микроорганизмов (обзор)

2021 ◽  
Vol 129 (1) ◽  
pp. 100
Author(s):  
А.Н. Cпицын ◽  
Д.В. Уткин ◽  
О.С. Кузнецов ◽  
П.С. Ерохин ◽  
Н.А. Осина ◽  
...  
Keyword(s):  
High Speed ◽  
New Technologies ◽  
Low Cost ◽  
Detection Sensitivity ◽  
Advantages And Disadvantages ◽  
Urgent Task ◽  
Significant Interest ◽  
Analytical Reliability ◽  
High Degree ◽  
Diagnostic Technologies

The study and identification of microorganisms plays asignificant role in the diagnosis of infectious diseases, so an important and urgent task is to introduce new technologies aimed at improving research. Obtaining quantitative and qualitative information about bacteria with high speed, specificity, detection sensitivity, low cost and ease of analysis is particularly substantial. This review examines the use of modern diagnostic technologies that allow for the study of biological systems with a high degree of analytical reliability. Technologies of Raman spectroscopy, FTIR spectroscopy, and surface plasmon resonance used in modern biosensors have proven to be significant and promising research tools. The main advantages and disadvantages of the methods used, as well as the results of their practical use, are indicated. A significant interest induce modern approaches in studying of microorganisms with the use of genetic protein dye – GFP and with applaying nanomaterials – theranostics.

Design of Semi-Active Roller Guides for High Speed Elevators

2014 ◽  
Vol 706 ◽  
pp. 108-116
Author(s):  
Raúl Monge ◽  
José Manuel Rodríguez-Fortún ◽  
Alfredo Gómez ◽  
José Alberto Roig ◽  
Pedro González
Keyword(s):  
High Speed ◽  
New Technologies ◽  
Design Method ◽  
Control Strategies ◽  
Low Cost ◽  
Active Vibration Control ◽  
Safety Level ◽  
Acceleration Sensors ◽  
Active Vibration ◽  
Magneto Rheological

Comfort is an important topic in the elevator industry, and among the different factors which affect it, vibration in the car is one of the most important. Passengers not only perceive this phenomenon as an unpleasant effect, but also as a signal of the elevator safety level, and therefore it is of great importance to mitigate it. Although mature technologies are available for reducing vibration in low speed elevators, the increased number of high buildings and sky-scrappers, forces the development of new technologies for medium and high speed elevators. Active vibration control techniques are widespread used for damping vibration in different industrial environments, but their application to the elevator industry normally imply expensive solutions, with bulky and heavy actuators which highly burden its application. As alternative, the cheaper and lighter semi-active vibration systems based on passive elements capable of modifying their properties in response to external commands represent an appealing option. In this paper, we describe a design method for a semi-active roller guide based on a commercial magneto-rheological damper. Different control strategies based on low cost acceleration sensors are also analyzed.

scholarly journals SMARTCITY WIRELESS FENCE AND INTERACTIVE INFRASTRUCTURE MODEL

2021 ◽  
Vol 1 (13) ◽  
pp. 63-80
Author(s):  
Nikita Moshenchenko ◽  
Bohdan Zhurakovskyi
Keyword(s):  
Wireless Networks ◽  
High Speed ◽  
New Technologies ◽  
Human Life ◽  
Low Cost ◽  
Main Task ◽  
High Data ◽  
Advantages And Disadvantages ◽  
802.11 Networks ◽  
Local Access

This article considers the problem of the process of using robots and their control in catering establishments with the help of wireless networks, shows the main features of existing solutions in the field of robotics and networks, their advantages and disadvantages. Wireless networks for their application in robot control have been studied. The main task of wireless networks is to provide high-speed local access to services and data in a certain area, the exchange of information between users within the territory. Building wireless Wi-Fi (IEEE 802.11) networks is now in high demand due to a host of benefits. Among the main advantages of this technology are the most attractive: low cost of equipment; flexibility of equipment use; high data rate. This technology provides the ability to run a number of custom applications. The infrastructure of wireless networks is the basis on which the further implementation of custom applications is built and the support of key services for the company is provided. Such services include network management, information security and service quality assurance (QoS) mechanisms. A virtual environment with the appropriate software was configured, a network simulation was performed, and its results were recorded. This solution can be used in catering establishments. It allows to introduce new technologies into the sphere of human life and increase the profits of food business owners.

Development and production experience of the multilayer curtain-coated linerboard of Ji’an PM No. 3,

TAPPI Journal ◽  
2014 ◽  
Vol 13 (2) ◽  
pp. 17-25
Author(s):  
JUNMING SHU ◽  
ARTHAS YANG ◽  
PEKKA SALMINEN ◽  
HENRI VAITTINEN
Keyword(s):  
Titanium Dioxide ◽  
High Speed ◽  
Food Packaging ◽  
Production Efficiency ◽  
Positive Impact ◽  
Low Cost ◽  
Board Structure ◽  
Flexographic Printing ◽  
Curtain Coating ◽  
Coating Formulations

The Ji’an PM No. 3 is the first linerboard machine in China to use multilayer curtain coating technology. Since successful startup at the end of 2011, further development has been carried out to optimize running conditions, coating formulations, and the base paper to provide a product with satisfactory quality and lower cost to manufacture. The key challenges include designing the base board structure for the desired mechanical strength, designing the surface properties for subsequent coating operations, optimizing the high-speed running of the curtain coater to enhance production efficiency, minimizing the amount of titanium dioxide in the coating color, and balancing the coated board properties to make them suitable for both offset and flexographic printing. The pilot and mill scale results show that curtain coating has a major positive impact on brightness, while smoothness is improved mainly by the blade coating and calendering conditions. Optimization of base board properties and the blade + curtain + blade concept has resulted in the successful use of 100% recycled fiber to produce base board. The optical, mechanical, and printability properties of the final coated board meet market requirements for both offset and flexographic printing. Machine runnability is excellent at the current speed of 1000 m/min, and titanium dioxide has been eliminated in the coating formulations without affecting the coating coverage. A significant improvement in the total cost of coated white liner production has been achieved, compared to the conventional concept of using virgin fiber in the top ply. Future development will focus on combining low cost with further quality improvements to make linerboard suitable for a wider range of end-use applications, including frozen-food packaging and folding boxboard.

Effect of Powder-Mixed Dielectric on EDM Process Performance

2020 ◽  
Vol 38 (8A) ◽  
pp. 1226-1235
Author(s):  
Safa R. Fadhil ◽  
Shukry. H. Aghdeab
Keyword(s):  
Silicon Carbide ◽  
High Speed ◽  
Electrical Discharge Machining ◽  
Removal Rate ◽  
High Speed Steel ◽  
Transformer Oil ◽  
Dielectric Fluid ◽  
Peak Current ◽  
Powder Concentration ◽  
Pulse On Time

Electrical Discharge Machining (EDM) is extensively used to manufacture different conductive materials, including difficult to machine materials with intricate profiles. Powder Mixed Electro-Discharge Machining (PMEDM) is a modern innovation in promoting the capabilities of conventional EDM. In this process, suitable materials in fine powder form are mixed in the dielectric fluid. An equal percentage of graphite and silicon carbide powders have been mixed together with the transformer oil and used as the dielectric media in this work. The aim of this study is to investigate the effect of some process parameters such as peak current, pulse-on time, and powder concentration of machining High-speed steel (HSS)/(M2) on the material removal rate (MRR), tool wear rate (TWR) and the surface roughness (Ra). Experiments have been designed and analyzed using Response Surface Methodology (RSM) approach by adopting a face-centered central composite design (FCCD). It is found that added graphite-silicon carbide mixing powder to the dielectric fluid enhanced the MRR and Ra as well as reduced the TWR at various conditions. Maximum MRR was (0.492 g/min) obtained at a peak current of (24 A), pulse on (100 µs), and powder concentration (10 g/l), minimum TWR was (0.00126 g/min) at (10 A, 100 µs, and 10 g/l), and better Ra was (3.51 µm) at (10 A, 50 µs, and 10 g/l).

Materials for bullet core

2020 ◽  
Vol 2020 (10) ◽  
pp. 8-21
Author(s):  
A. G. Kolmakov ◽  
◽  
I. O. Bannykh ◽  
V. I. Antipov ◽  
L. V. Vinogradov ◽  
...  
Keyword(s):  
High Speed ◽  
Bending Strength ◽  
Low Alloy Steels ◽  
Hard Alloys ◽  
Small Arms ◽  
Alloy Steels ◽  
Materials Used ◽  
Basic Ideas ◽  
New Generation ◽  
Natural Composite

he basic ideas about the process of introducing cores into protective barriers and the most common core patterns and their location in conventional and sub-caliber small arms bullets are discussed. The materials used for manufacture of cores are analyzed. It is concluded that for mass bullets of increased armor penetration the most rational choice can be considered the use of high-carbon low-alloy steels of a new generation with a natural composite structure and hardness of up to 70 HRC. For specialized armor-piercing bullets, cores made from promising economically-alloyed high-speed steels characterized by a high complex of «hardness—bending strength» are better alternative than ones made of hard alloys or tungsten alloys.

Low-Cost High-Speed Techniques for Real-Time Simulation of Power Electronic Systems

2007 ◽  
Author(s):  
R. E. Crosbie ◽  
J. J. Zenor ◽  
R. Bednar ◽  
D. Word ◽  
N. G. Hingorani
Keyword(s):  
Real Time ◽  
High Speed ◽  
Low Cost ◽  
Electronic Systems ◽  
Power Electronic ◽  
Real Time Simulation ◽  
Time Simulation

The Future of Human Workers

2018 ◽  
Author(s):  
Mahesh K. Joshi ◽  
J.R. Klein
Keyword(s):  
Artificial Intelligence ◽  
New Technologies ◽  
Mental Capacity ◽  
Machine Intelligence ◽  
The Internet ◽  
Traditional Model ◽  
Global Workforce ◽  
Repetitive Tasks ◽  
The Internet Of Things

New technologies like artificial intelligence, robotics, machine intelligence, and the Internet of Things are seeing repetitive tasks move away from humans to machines. Humans cannot become machines, but machines can become more human-like. The traditional model of educating workers for the workforce is fast becoming irrelevant. There is a massive need for the retooling of human workers. Humans need to be trained to remain focused in a society which is constantly getting bombarded with information. The two basic elements of physical and mental capacity are slowly being taken over by machines and artificial intelligence. This changes the fundamental role of the global workforce.

scholarly journals The Impact of Big Data on Electronic Commerce in Profit Organisations in Saudi Arabia

2019 ◽  
Vol 10 (4) ◽  
pp. 106
Author(s):  
Bader A. Alyoubi
Keyword(s):  
Saudi Arabia ◽  
Big Data ◽  
Inventory Management ◽  
New Technologies ◽  
Predictive Analytics ◽  
Business Environment ◽  
Primary Data ◽  
Research Approach ◽  
Multiple Sources ◽  
The Impact

Big Data is gaining rapid popularity in e-commerce sector across the globe. There is a general consensus among experts that Saudi organisations are late in adopting new technologies. It is generally believed that the lack of research in latest technologies that are specific to Saudi Arabia that is culturally, socially, and economically different from the West, is one of the key factors for the delay in technology adoption in Saudi Arabia. Hence, to fill this gap to a certain extent and create awareness about Big Data technology, the primary goal of this research was to identify the impact of Big Data on e-commerce organisations in Saudi Arabia. Internet has changed the business environment of Saudi Arabia too. E-commerce is set for achieving new heights due to latest technological advancements. A qualitative research approach was used by conducting interviews with highly experienced professional to gather primary data. Using multiple sources of evidence, this research found out that traditional databases are not capable of handling massive data. Big Data is a promising technology that can be adopted by e-commerce companies in Saudi Arabia. Big Data’s predictive analytics will certainly help e-commerce companies to gain better insight of the consumer behaviour and thus offer customised products and services. The key finding of this research is that Big Data has a significant impact in e-commerce organisations in Saudi Arabia on various verticals like customer retention, inventory management, product customisation, and fraud detection.

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