Recent questions tagged computer-integrated-manufacturing / GO Mechanical

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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 ...

Arjun

28.5k points

Arjun asked Feb 17, 2018

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GATE2017 ME-2: 20
Which one of the following statements is TRUE for the ultrasonic machining (USM) process? In USM, the tool vibrates at subsonic frequency. USM does not employ magnetostrictive transducer. USM is an excellent process for machining ductile materials. USM often uses a slurry comprising abrasive-particles and water.

Which one of the following statements is TRUE for the ultrasonic machining (USM) process?In USM, the tool vibrates at subsonic frequency.USM does not employ magnetostrict...

Arjun

28.5k points

Arjun asked Feb 26, 2017

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GATE2017 ME-1: 49
Circular arc on a part profile is being machined on a vertical CNC milling machine. CNC part program using metric units with absolute dimensions is listed below: ... The coordinates of the centre of the circular arc are: $(30, 55)$ $(50, 55)$ $(50, 35)$ $(30, 35)$

Circular arc on a part profile is being machined on a vertical CNC milling machine. CNC part program using metric units with absolute dimensions is listed below:$\begin{a...

Arjun

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Arjun asked Feb 26, 2017

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GATE2016-3-24
Match the following part programming codes with their respective functions: ... $P - IV, Q - III, R - II, S - I$ $P - III, Q - IV, R - II, S - I$

Match the following part programming codes with their respective functions:$\begin{array}{|l|l|l|l|} \hline & \textbf{Part Programming Codes} && \textbf{Functions} \\ \hl...

Arjun

28.5k points

Arjun asked Feb 24, 2017

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GATE2016-2-25
In an ultrasonic machining (USM) process, the material removal rate (MRR) is plotted as a function of the feed force of the USM tool. With increasing feed force, the MRR exhibits the following behavior: increases linearly decreases linearly does not change first increases and then decreases

In an ultrasonic machining (USM) process, the material removal rate (MRR) is plotted as a function of the feed force of the USM tool. With increasing feed force, the MRR ...

Arjun

28.5k points

Arjun asked Feb 24, 2017

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GATE2015-3-35
In a CNC milling operation, the tool has to machine the circular arc from point $(20, 20)$ to $(10, 10)$ at sequence number $5$ of the CNC part program. If the center of the arc is at $(20, 10)$ ... R$10$ N $05$ G$90$ G$03$ X$20$ Y$20$ R$10$ N $05$ G$91$ G$02$ X$20$ Y$20$ R$10$

In a CNC milling operation, the tool has to machine the circular arc from point $(20, 20)$ to $(10, 10)$ at sequence number $5$ of the CNC part program. If the center of ...

Arjun

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Arjun asked Feb 24, 2017

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GATE2015-3-20
A drill is positioned at point P and it has to proceed to point Q. The coordinates of point Q in the incremental system of defining position of a point in CNC part program will be $(3, 12)$ $(5, 7)$ $(7, 12)$ $(4, 7)$

A drill is positioned at point P and it has to proceed to point Q. The coordinates of point Q in the incremental system of defining position of a point in CNC part progra...

Arjun

28.5k points

Arjun asked Feb 24, 2017

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GATE2015-1-32
A triangular facet in a CAD model has vertices: $P1(0,0,0)$; $P2(1,1,0)$ and $P3(1,1,1)$. The area of the facet is $0.500$ $0.707$ $1.414$ $1.732$

A triangular facet in a CAD model has vertices: $P1(0,0,0)$; $P2(1,1,0)$ and $P3(1,1,1)$. The area of the facet is$0.500$$0.707$$1.414$$1.732$

Arjun

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Arjun asked Feb 24, 2017

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GATE2015-1-25
The function of interpolator in a CNC machine controller is to control spindle speed coordinate feed rates of axes control tool rapid approach speed perform Miscellaneous (M) functions (tool change, coolant control etc.)

The function of interpolator in a CNC machine controller is tocontrol spindle speedcoordinate feed rates of axescontrol tool rapid approach speedperform Miscellaneous (M)...

Arjun

28.5k points

Arjun asked Feb 24, 2017

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GATE Mechanical 2014 Set 2 | Question: 52
For the CNC part programming, match Group A with Group B: ... $P-I, Q-III, R-II, S-IV$ $P-I, Q-IV, R-II, S-III$ $P-II, Q-I, R-III, S-IV$

For the CNC part programming, match Group A with Group B:$\begin{array}{|l|l|l|l|} \hline & \textbf{Group A} && \textbf{Group B} \\ \hline P: & \text{circular interpolati...

Arjun

28.5k points

Arjun asked Feb 19, 2017

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GATE Mechanical 2014 Set 2 | Question: 21
A robot arm $PQ$ with end coordinates $P(0,0)$ and $Q(2,5)$ rotates counter clockwise about $P$ in the $XY$ plane by $90^\circ$. The new coordinate pair of the end point Q is $(−2,5)$ $(−5,2)$ $(−5, −2)$ $(2, −5)$

A robot arm $PQ$ with end coordinates $P(0,0)$ and $Q(2,5)$ rotates counter clockwise about $P$ in the $XY$ plane by $90^\circ$. The new coordinate pair of the end point ...

Arjun

28.5k points

Arjun asked Feb 19, 2017

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GATE Mechanical 2014 Set 1 | Question: 20
For machining a rectangular island represented by coordinates $P(0,0), Q(100,0), R(100,50)$ and $S(0,50)$ on a casting using CNC milling machine, an end mill with a diameter of $16$ $mm$ ... $(0,0), (100,0), (100,50), (50,0), (0,0)$

For machining a rectangular island represented by coordinates $P(0,0), Q(100,0), R(100,50)$ and $S(0,50)$ on a casting using CNC milling machine, an end mill with a diame...

Arjun

28.5k points

Arjun asked Feb 19, 2017

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GATE ME 2013 | Question: 35
In a $CAD$ package, mirror image of a $2D$ point $P(5,10)$ is to be obtained about a line which passes through the origin and makes an angle of $45^{\circ}$ counterclockwise with the $X$-axis. The coordinates of the transformed point will be $(7.5, 5)$ $(10, 5)$ $(7.5, -5)$ $(10, -5)$

In a $CAD$ package, mirror image of a $2D$ point $P(5,10)$ is to be obtained about a line which passes through the origin and makes an angle of $45^{\circ}$ counterclockw...

piyag476

1.4k points

piyag476 asked Feb 19, 2017

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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...

piyag476

1.4k points

piyag476 asked Feb 19, 2017