Pulse electrochemical machining of cast iron: a layer-based approach for modeling the steady-state dissolution current

2015 ◽  
Vol 19 (5) ◽  
pp. 1265-1276 ◽  
Author(s):  
Olivier Weber ◽  
Harald Natter ◽  
Dirk Bähre
Keyword(s):  
Cast Iron ◽  
Steady State ◽  
Electrochemical Machining ◽  
Pulse Electrochemical Machining ◽  
Dissolution Current

Precise pulse electrochemical machining by bipolar current

2004 ◽  
Vol 149 (1-3) ◽  
pp. 419-425 ◽  
Author(s):  
A. Zaytsev ◽  
I. Agafonov ◽  
N. Gimaev ◽  
R. Moukhoutdinov ◽  
A. Belogorsky
Keyword(s):  
Electrochemical Machining ◽  
Pulse Electrochemical Machining

Study of Pulse Electrochemical Machining Performance of Deep-Small Hole on Nickel-Based Alloy

2011 ◽  
Vol 204-210 ◽  
pp. 1830-1834
Author(s):  
Zhao Long Li ◽  
Shi Chun Di
Keyword(s):  
Base Alloy ◽  
Removal Rate ◽  
Electrochemical Machining ◽  
Machining Process ◽  
Machining Accuracy ◽  
Machining Performance ◽  
Math Model ◽  
Technical Parameters ◽  
Pulse Electrochemical Machining ◽  
Small Holes

The method of machining deep hole on Ni-base alloy which can tolerant high temperature by pulse electrochemical machining has been proposed in this paper. Five technical parameters are discussed on the effect of mass removal rate of machining process. Establish a dynamic math model, and analyze the effect of process parameters on the mass material removal rate of deep small holes. Machining accuracy of deep small holes was analyzed.

scholarly journals EXPERIMENTAL INVESTIGATION & ANALYSIS OF HEA TRANSFER CHARACTERISTICS IN AUTOMOTIVE MMC DISC BRAKE UNDER STEADY STATE AND DYNAMIC CONDITIONS

2021 ◽  
Author(s):  
Agarwal A ◽  
◽  
Molwane O.B ◽  
Letsatsi M.T ◽  
◽  
...  
Keyword(s):  
Heat Transfer ◽  
Cast Iron ◽  
Steady State ◽  
Dynamic Condition ◽  
Heat Transfer Characteristics ◽  
Dynamic Conditions ◽  
Brake Pads ◽  
Disk Brake ◽  
Transfer Characteristics ◽  
Air Speed

During braking process, the kinetic energy of vehicle reduces and gets converted in thermal energy due to friction between disk and brake pads. The disk brake is used to retard the motion of vehicle by pressing brake pads against disk rotors. The frequent braking or panic braking results in overheating of brake disks which may result in brake fade. It is therefore essential to test newer materials which are more effective and possess better heat transfer characteristics than conventional cast iron material. The current research investigates the application of Al MMC material for ATV disk brake using experimental and numerical techniques. The numerical analysis is conducted on both conventional cast iron and Al MMC disk brake under steady state conditions and dynamic conditions. The dynamic condition testing involved testing of disk brake with externally flowing air at 2.5m/s and 5m/s using techniques of Computational Fluid Dynamics (CFD). The CAD model of ATV disk brake is developed in Creo design software and CFD analysis is conducted using ANSYS CFX. The turbulence model used for analysis is RNG k-epsilon. The temperature and heat flux are determined for disk brake under steady state and dynamic conditions. The results have shown that disk brake made from Al MMC possess better heat transfer characteristics as compared to conventional cast iron and cooling time also reduces with increase in external air speed.

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