GATE2015-1-23

Arjun asked Feb 24, 2017 • recategorized Mar 4, 2021 by Lakshman Bhaiya

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Arjun asked Feb 24, 2017

GATE2015-1-35
An orthogonal turning operation is carried out under the following conditions: rake angle = $5^{\circ}$; spindle rotational speed = $400 \text{ rpm}$; axial feed = $0.4 \text{ m/min}$ and radial depth of cut = $5 \text{ mm}$. The chip thickness, $t_c$, is found to be $3 \text{ mm}$. The shear angle (in degrees) in this turning process is_____

An orthogonal turning operation is carried out under the following conditions: rake angle = $5^{\circ}$; spindle rotational speed = $400 \text{ rpm}$; axial feed = $0.4 \...

Arjun

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Arjun asked Feb 24, 2017

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Arjun asked Feb 9, 2019

GATE2019 ME-1: 53
Taylor’s tool life equation is given by $VT^n=C$, where $V$ is in $m/min$ and $T$ is in $min$. In a turning operation, two tools $X$ and $Y$ are used. For tool $X$, $n=0.3$ and $C=60$ and for tool $Y$, $n=0.6$ and $C=90$. Both the tools will have the same tool life for the cutting speed (in $m/min$, round off to one decimal place) of ____________

Taylor’s tool life equation is given by $VT^n=C$, where $V$ is in $m/min$ and $T$ is in $min$. In a turning operation, two tools $X$ and $Y$ are used. For tool $X$, $n=...

Arjun

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Arjun asked Feb 9, 2019

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Arjun asked Feb 24, 2017

GATE2016-3-51
In a single point turning operation with cemented carbide tool and steel work piece, it is found that the Taylor’s exponent is $0.25$. If the cutting speed is reduced by $50 \%$ then the tool life changes by ______ times.

In a single point turning operation with cemented carbide tool and steel work piece, it is found that the Taylor’s exponent is $0.25$. If the cutting speed is reduced b...

Arjun

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Arjun asked Feb 19, 2017

GATE Mechanical 2014 Set 4 | Question: 21
Two separate slab milling operations, $1$ and $2$, are performed with identical milling cutters. The depth of cut in operation $2$ is twice that in operation $1$. The other cutting parameters are identical. The ratio of maximum uncut chip thicknesses in operations $1$ and $2$ is _______

Two separate slab milling operations, $1$ and $2$, are performed with identical milling cutters. The depth of cut in operation $2$ is twice that in operation $1$. The oth...

Arjun

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Arjun asked Feb 19, 2017

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Arjun asked Feb 19, 2017

GATE Mechanical 2014 Set 3 | Question: 20
A straight turning operation is carried out using a single point cutting tool on an AISI $1020$ steel rod. The feed is $0.2$ $mm/rev$ and the depth of cut is $0.5$ $mm$. The tool has a side cutting edge angle of $60^{\circ}$. The uncut chip thickness (in $mm$) is _______

A straight turning operation is carried out using a single point cutting tool on an AISI $1020$ steel rod. The feed is $0.2$ $mm/rev$ and the depth of cut is $0.5$ $mm$. ...

Arjun

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Arjun asked Feb 19, 2017

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