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II
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Surface grinding machine
• Perform grinding process as the surface angle and shape, it is also
suitable for finishing and abrasive work (polishing)
Cylindrical grinding machine
• Used for grinding cylinders parallel, narrow, and forms
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Centerless grinding machine
• Is made for grind both external and internal cylindrical surfaces without the
need of the work piece is placed between the centre or at lathe
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Sketch a diagram of the basic method grinding of centerless grinding machine

21
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300 mm diameter wheel guard and wheel circumference speed face
controller is 0
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Estimate:

i
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the work feed rate

iii
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State FOUR (4) important things to be considered before grind using a grinding cylinder

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mounting the work piece between conical centers and rotated by a holder
also known as a work head or drive head
The cutting tool is an abrasive wheel that rotates at different rates
The cylindrical grinding wheel can be dressed (cut or shaped) straight to
produce simple cylindrical grinding shapes, tapered or straight
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State FOUR (4) important things that need adjustment before the grinding process by the
method of a centerless grinding

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the grinding wheel
regulating wheel
the work support blade
feed of speed

24
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300 mm diameter wheel guard and speed of face circumference wheel
guard is 0
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Estimate :

i
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speed of Steel bar in rpm

iii
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Define the grinding process:
• process Of metal removal by using a grinding wheel that rotates
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State guidelines for the use of a grinding wheel
All grinding wheels are relatively fragile
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1
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Wherever this is unavoidable because of the
larger size of the wheel, a soft resilient floor is essential
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Use suitable conveyors or Turks, which will provide proper support when
transporting wheels, which cannot be carried by hand
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Stack and support wheels on trucks so that they will not get damaged or
chipped
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surface grinding machine is used to reduce dimension of surface and provide a good
surface texture
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definition of chuck electromagnetic dan list three benefit of it :

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Chuck Magnet - used for holding ferromagnetic workpieces, a magnetic
chuck consists of an accurately centered permanent magnet face
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These pole
pieces are usually flush with the housing surface
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The principle of centerless grinding machine:
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principle of centerless grinding machine external using a two-wheel
large wheel operating as a grinding wheel while small wheel is a wheel
guard permanently attached to the surface of the grinding wheel angle
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wheel guard also acts as a
a) workpiece holder
b) help the movement of rotation of the workpiece
c) control the size of workpiece
both wheels rotate in the same direction
suppressant help support the workpiece during operation



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