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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.
Dust Collector: Dust collector system is to collect the blast burrs or waste particle created during the blasting process. During the blasting process, this dust co
prove that 0 is an integer
Strain energy stored in a body due to impact load
Pattern Materials The requirements of pattern are: Secure the desired shape and size of the casting. Cheap and readily available. Light in mass and convenient to
Casting processes Casting processes. Here, the metal in the molten state is poured into a mould and allowed to solidify into a shape. The mould may be expendable or permanent.
crowning of belt
a) Answer the following equations by Gauss-Jordan method x 1 +2x 2 +x 3 =8 ; 2x 1 +3x 2 +4x 3 =20; 4x 1 +3x 2 +2x 3 = 16 b) Answer the following equations by Relaxation m
Q. What do you mean by Thermosetting plastics? This plastic undergoes a number of chemical changes on heating and cure to infusible and practically insoluble articles. The chem
What are the advantages and disadvantages of induction motors? A coil of 500 turns is linked by a ?ux of 0.4 mWb. If the ?ux is reversed in 0.01 second, ?nd the e.m.f induced i
Q. Selection of Electrodes and Filler Metals? Only low hydrogen electrodes shall be used for SMAW of all carbon and low alloy steels, except for root pass welding of single wel
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