نتایج جستجو برای: ناپایداری در edm

تعداد نتایج: 759012  

2014
Shivam Goyal Rakesh Kumar Singh

Electrical discharge machining (EDM) is a wellestablished non-conventional machining process, used for manufacturing geometrically complex or hard and electrically conductive material parts that are extremely difficult to cut by other conventional machining processes. But sometimes poor surface finish and low volumetric material removal rate limits its use in the industry. To diffuse this probl...

2002
Michael V. Romalis

Searches for a permanent electric dipole moment (EDM) provide a unique constraint on violation of CP symmetry beyond the Standard Model. Recent experiments improved the limits on EDMs of Hg and the electron. Combined with the limit on the neutron EDM and recent advances in theoretical interpretation, they set very tight constraints on CP violation in Supersymmetry. Many new experimental ideas a...

2003
A Yahya

21 Abstract— This article presents a model of the EDM system for an Electrical Discharge Machine (EDM), which accurately predicts the material removal rate for particular electrodes and workpieces. A value for the material removal rate constant, α α α α has been identified based on the empirical analysis carried out on the experimental data and compared with the simulation result from the model...

ژورنال: :دانش آب و خاک 2014
آرش عسگری میرعلی محمدی محمد مناف پور

به منظور بررسی ساختار و رفتار هیدرولیکی جریان در رودخانه­ها و کانال­های مرکب، دبی و شیب خط انرژی اهمیت بالایی دارند. با تقسیم مقطع عرضی این کانال­ها به زیر ناحیه­های آن یعنی کانال اصلی و بسترهای سیلابی، دبی جریان به صورت جداگانه در هر زیر ناحیه قابل تعیین است و آنگاه دبی کل مقطع از مجموع آنها بدست می­آید. این روش به روش کانال تقسیم شده (dcm) معروف است. روش دیگری نیز به روش کانال ساده (scm) موسو...

2008
H S Nataraj

The enhancement factors of the electric dipole moment (EDM) of the ground states of two paramagnetic atoms; rubidium (Rb) and caesium (Cs) which are sensitive to the electron EDM are computed using the relativistic coupled-cluster theory and our results are compared with the available calculations and measurements. The possibility of improving the limit for the electron EDM using the results of...

2015
P. Srikanth Pranay Kumar

Electrical Discharge Machining (EDM) is the process of machining electrically conductive materials by using precisely controlled sparks that occur between an electrode and the work piece in the presence of a dielectric fluid. Aluminium Metal Matrix Composites (AMMC’s) are new generation engineering materials that possess superior physical and mechanical properties compared to non-reinforced all...

2009
V. S. Sreebalaji R. Saravanan

Electrical Discharge Machine (EDM) is one of the non-traditional machining processes. EDM process is based on thermoelectric energy between the work and an electrode. A pulse discharge occurs in a small gap between the work piece and the electrode and removes the unwanted material from the parent metal through melting and vaporization. The electrode and the work piece must have an electrical co...

Journal: :Dental materials journal 2012
Koichi Yamaki Yu Kataoka Fukunaga Ohtsuka Takashi Miyazaki

Titanium surfaces processed by wire-type electric discharge machining (EDM) are microfabricated surfaces with an irregular morphology, and they exhibited excellent in vitro bone biocompatibility. In this study, the efficiency of in vivo osteogenesis on EDM surfaces was investigated by surgically placing screw-shaped EDM-processed and machined-surface implants into the femurs of four Japanese wh...

Journal: :international journal of advanced design and manufacturing technology 0
mohammad tahmasebipour faculty of new sciences & technologies, university of tehran, tehran, iran *corresponding author y. tahmasebipour micro/nano-manufacturing technologies development laboratory, faculty of new sciences & technologies, university of tehran, iran a. shabani micro/nano-manufacturing technologies development laboratory, faculty of new sciences & technologies, university of tehran, iran m. boujari aliabadi faculty of new sciences & technologies, university of tehran, tehran, iran

the micro wire electrical discharge machining (micro wire-edm) process is a modern machining process with various applications in manufacturing micro-parts. the recast layer remaining on the machined surfaces is an inevitable complication of this process. this layer can subsequently affect the machined parts performance. to optimize the recast layer in the micro wire-edm of the molybdenum micro...

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