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GATE2018-1-55
An electrochemical machining (ECM) is to be used to cut a through hole into a $12$ mm thick aluminum plate. The hole has a rectangular cross-section. $10 \: mm \times 30 \:mm$. The ECM operation will be accomplished in $2$ minutes, with efficiency of $90 \%$. Assuming ... , the current (in A) required is __________ (correct to two decimal places).

An electrochemical machining (ECM) is to be used to cut a through hole into a $12$ mm thick aluminum plate. The hole has a rectangular cross-section. $10 \: mm \times 30 ...

Lakshman Bhaiya

21.7k points

Lakshman Bhaiya recategorized Mar 5, 2021

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GATE ME 2013 | Question: 15
A steel bar $200$ $mm$ in diameter is turned at a feed of $0.25$ $mm$/$rev$ with a depth of cut of $4$ $mm$. The rotational speed of the workpiece is $160$ $rpm$. The material removal rate in $mm^3$/$s$ is $160$ $167.6$ $1600$ $1675.5$

A steel bar $200$ $mm$ in diameter is turned at a feed of $0.25$ $mm$/$rev$ with a depth of cut of $4$ $mm$. The rotational speed of the workpiece is $160$ $rpm$. The mat...

soujanyareddy13

100 points

soujanyareddy13 retagged May 1, 2020

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GATE2019 ME-2: 54
In an orthogonal machining with a single point cutting tool of rake angle $10^{\circ}$, the uncut chip thickness and the chip thickness are $0.125$ mm and $0.22$ mm, respectively. Using Merchant’s first solution for the condition of minimum cutting force, the coefficient of friction at the chip-tool interface is _______ (round off to two decimal places).

In an orthogonal machining with a single point cutting tool of rake angle $10^{\circ}$, the uncut chip thickness and the chip thickness are $0.125$ mm and $0.22$ mm, resp...

robin singh

140 points

robin singh answered Mar 1, 2020

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GATE2018-2-16
Metal removal in electric discharge machining takes place through ion displacement melting and vaporization corrosive and reaction plastic shear

Metal removal in electric discharge machining takes place throughion displacementmelting and vaporizationcorrosive and reactionplastic shear

go_editor

5.0k points

go_editor edited Jan 16, 2020