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- Volume 7, Issue 2, 2014
Recent Patents on Mechanical Engineering - Volume 7, Issue 2, 2014
Volume 7, Issue 2, 2014
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High-Power and High-Reliability RF MEMS Switch Review
Authors: Wenchao Tian and Jianglei HuRF MEMS switch is one of new microwave devices with MEMS technology. Development directions of RF switch are high-power and high-reliability. It has many advantages, such as low loss, low power, excellent linearity, small size and easy integration. Its research status and performances are introduced in this paper. Relevant researches and patents are studied. Some measures to improve power and reliability are proposed. T Read More
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Recent Advances on the Design of Batteries and Fuel Cells for Automobiles
More LessAutomobiles partly or exclusively powered by electric sources are amongst the top priorities within the automotive industry, mobilizing researchers and engineers among all stakeholders: public laboratories, vehicle and part manufacturers, electricity providers, etc. This paper deals with US, European and world patents regarding batteries and fuel cells for automobiles, mainly passenger cars and light trucks. The main purpos Read More
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Recent Advance on Fused Deposition Modeling
Authors: Zhe Shi, Yonggang Peng and Wei WeiAdditive manufacturing (AM) technique is a prospective technique used in the production of complex geometries, which integrates design as well as manufacture. Fused deposition modeling (FDM), one implementation of AM, is widely used for manufacture in numerous fields. As a printing technology, FDM is very flexible and relatively inexpensive, thus becoming a leading and dominant pattern in AM field. The paper review Read More
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A Double-Toggle Clamping Unit of Injection Molding Machine
Authors: Quan Wang, Xiao Sun and Chaohua HuangThe clamping mechanism is one of the important components of injection molding machine. The double-toggle clamping unit is applied in clamping mechanism widely. But, the existing double-toggle clamping unit is connected by cross head driven clamping mold oil cylinder. In the process of movement, especially in the open limit position or a front connecting rod close to the vertical position, the wear is very serious as it may Read More
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Actuation System Design for a Morphing Wing Trailing Edge
Authors: Ignazio Dimino, Domenico Flauto, Gianluca Diodati, Antonio Concilio and Rosario PecoraShape control of adaptive wings has the potential to improve aircraft aerodynamic performance during cruise. In recent years, several patents have been issued for inventions in the field of morphing wings, using hydraulic, electromechanical or smart material-based actuation concepts and architectures. In the framework of SARISTU project (EUFP7), the joint integration of different conformal morphing concepts in a laminar Read More
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Grinding Temperature with Nanoparticle Jet Minimum Quantity Lubrication
Authors: Yali Hou, Changhe Li, Dongkun Zhang, Dongzhou Jia and Sheng WangIn recent years, a large number of patents have been devoted to developing minimum quantity lubrication (MQL) grinding techniques for environment friendly, energy saving, and cost-effective grinding fluid alternatives. One patent involves the nanoparticle jet flow in the MQL of grinding lubricant supply systems. An MQL grinding lubricant is prepared by adding nanoscale solid particles into a degradable grinding li Read More
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A Modified Particle Swarm Optimization for Form and Position Errors of Mechanical Parts
Authors: Chen X. Luo, Zheng T. Han, Chang L. Du and Yong S. ZhuBy studying the evaluation principles of mechanical parts’ form and position errors and many kinds of error algorithms, presented in recent patents and scientific articles, a project was proposed by using a modified particle swarm optimization (PSO) with linearly decreasing inertia weights to evaluate form and position errors. With its important parameters being analyzed based on the features of form and position errors’ eval Read More
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Analysis and Optimization of Output Parameters using Taguchi Design Analysis
Authors: K. Senthil Kumar and J.S. SenthilkumaarThis paper deals with the analysis and optimization of the surface roughness and tool flank wear when machining super duplex stainless steel with uncoated carbide inserts as cutting tool. The experiments are repeated in three different cutting conditions namely the dry, wet and gas cooled machining. Cutting speed, feed rate and depth of cut are the input turning process parameters considered. Taguchi's Full Factorial desig Read More
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Experimental Study of Complex Structures Machining with an Electrochemical Micromachining System
Authors: Yong Liu and Shaofu HuangElectrochemical micromachining (EMM) is proposed as an effective micro machining technology to fabricate complex micro structures on hard-to-cut materials and various recent patents have been discussed in this paper. First, an EMM system that meets the requirements of the EMM process is built. Second, sets of comparative experiments are performed on super alloy plates to study the influence of main electrochemical m Read More
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