Results 71 to 80 of about 44,386 (271)

A study of electrodischarge machining–pulse electrochemical machining combined machining for holes with high surface quality on superalloy

Advances in Mechanical Engineering, 2015
Noncircular holes on the surface of turbine rotor blades are usually machined by electrodischarge machining. A recast layer containing numerous micropores and microcracks is easily generated during the electrodischarge machining process due to the rapid ...
Ning Ma, Xiaolong Yang, Mingqian Gao, Jinlong Song, Ganlin Liu, Wenji Xu   +5 more
doaj   +1 more source

Modelling and optimization of Chromium Powder Mixed EDM Parameter Effect Over the Surface Characteristics by Response Surface Methodology Approach

International Journal of Engineering Materials and Manufacture, 2018
In this paper, an optimization of chromium powder mixed parameters effect, i.e. discharge current, pulse on time and Cr powder concentration of AISI D2 steels in Powder Mixed EDM (PMEDM) has been made.
Nor Ain Binti Jamil Hosni, Mohd Amri Bin Lajis, Muhammad Ridzuan Bin Idris   +2 more
doaj   +1 more source

Effect of different tool materials during EDM performance of titanium grade 6 alloy

Engineering Science and Technology, an International Journal, 2018
During this investigation, a comparative study has been carried out on electro discharge machining (EDM) of titanium grade 6 alloy using different type of electrodes viz. copper, brass and zinc.
Munmun Bhaumik, Kalipada Maity
doaj   +1 more source

Shear flow-interchange instability in nightside magnetotail causes auroral beads as a signature of substorm onset

, 2019
A geometric wedge model of the near-earth nightside plasma sheet is used to derive a wave equation for low frequency shear flow-interchange waves which transmit $\vec{E} \times \vec{B}$ sheared zonal flows along magnetic flux tubes towards the ionosphere.
Derr, Jason, Horton, Wendell, Wolf, Richard   +2 more
core   +1 more source

Shock Formation in a Multidimensional Viscoelastic Diffusive System [PDF]

, 1995
We examine a model for non-Fickian "sorption overshoot" behavior in diffusive polymer-penetrant systems. The equations of motion proposed by Cohen and White [SIAM J. Appl. Math., 51 (1991), pp.
Cohen, Donald S., White, Andrew B., Jr., Witelski, Thomas P.   +2 more
core   +2 more sources

Osteohistology of two phorusrhacids reveals uninterrupted growth strategy

The Anatomical Record, EarlyView.
Abstract Phorusrhacidae were apex predators that primarily dominated South America ecosystems for at least 40 million years with their imposing size and predatory lifestyle—yet some aspects of their biology remain poorly understood. Osteohistology is a tool for understanding growth dynamics and biomechanical adaptations.
Lotta Dreyer, Christian Cooper, Jingmai O'Connor   +2 more
wiley   +1 more source

Optimizing the Die-Sink EDM Machinability of AISI 316L Using Ti-6Al-4V-SiCp Electrodes: A Computational Approach

Journal of Manufacturing and Materials Processing
Die-sink electric discharge machining (EDM) is essential for shaping complex geometries in hard-to-machine materials. This study aimed to optimize key input parameters, such as the discharge current, gap voltage, pulse-on time, and pulse-off time, to ...
Adithya Hegde, Raviraj Shetty, Rajesh Nayak, Sawan Shetty, Uday Kumar Shetty SV   +4 more
doaj   +1 more source

Assessment of Recast Layer while Machining Die Steel D3 on EDM

International Journal of Experimental Research and Review
The material melted and quickly solidified on the surface, forming a Recast layer over the machined surface. The present experimental assessment measures the extent of influence of machine variables towards the deposition of recast material post-machining Die Steel D3.
Basant Lal, Vivek Kumar Bajpai, Kaushlesh Kumar Shah, Shavej Ali Siddiqui, Rohit Sahu, Syed Asghar Husain Rizvi   +5 more
openaire   +1 more source

Macrophage‐targeted cerium‐tannic acid metal‐polyphenol framework nanoenzyme promotes in situ heart valves regeneration through adaptive immunomodulation

BMEMat, EarlyView.
A novel nanoenzyme based on cerium ions‐tannic acid metal‐polyphenol framework (FCT) has been developed and loaded onto DHVs for targeting M1 macrophages to reduce their ROS level and reprogram macrophage phenotype, thereby eliminating inflammation, promoting endothelialization and adaptive matrix remodeling of scaffolds, offering a promising strategy ...
Peng Song, Yunlong Wu, Xing Chen, Yafei Liu, Mengna Dong, Jiawei Shi, Xichi Wang, Nianguo Dong, Weihua Qiao, Qin Wang   +9 more
wiley   +1 more source

Atomistic spin-model based on a new spin-cluster expansion technique: Application to the IrMn3/Co interface

, 2010
In order to derive tensorial exchange interactions and local magnetic anisotropies in itinerant magnetic systems, an approach combining the Spin-Cluster Expansion with the Relativistic Disordered Local Moment scheme is introduced.
J. Jackson, J. Zabloudil, L. Szunyogh, L. Udvardi, R. Chantrell, U. Nowak, V. I. Lebedev   +6 more
core   +1 more source