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Define the Basic Components of an N.C System
The basic components of an N.C system are as follow:
a) Programmer of Instruction: - It is a set of direction which will tell the machine tool what to do. It is coded in numerical or symbolic form on some type of input medium such as one inch wide.
b) Machine controller unit (M.C.U):- It consists of the electronics and hardware that read and interpret the program of instruction and convert it in to mechanical action of the machine tool.
c) Machine tool or other controlled process: - It performs the useful work. A machine tool consists of the following.
1) Work table and work fixtures
2) Spindle
3) Cutting tools
4) Motors and controls for drives
5) Other auxiliary equipment needed in machining operation.
Thyristor: The thyristor is just like an ordinary diode. Thyristor
WELD DEFECTS The common defects encountered in submerged arc welding are: a. Slag inclusion b. Porosity c. Cracking of welds. a). Slag Inclusion : Slag in
examples of two property rule
Thin uniform wire bent - centre of gravity: Find out the C. G. of the thin uniform wire bent into shape ABC as illustrated in Figure. Solution Assume G be the loc
What is In-Line IC Engines?
A hydraulic pipe is 20 cm internal diameter and 5 cm thick. It is needed to sustain an intensities of radial and hoop stress at several radii and plot their variation.
Which mechanism more efficiency? What is the reason ?
Convert the following readings of pressure to KPa absolute, assuming that the barometer reads 760mm Hg: (a) 100 psig, (b) 8in. Hg vacuum, and (c) 76in Hg gage.
Q. Which functions used for coating? • Improves arc stability by providing certain chemical which have this ability, by ionizing the path of arc. • Provides a protective gaseou
Link O4C of a 4-bar mechanism is subjected to a torque T4=1Nm[ccw]. The link BC is subjected to a force Q=45N @900 downwards. Determine the torque T2 on link O2B and the reactions
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