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WorksheetsMesin Perkakas CNC 3
Total questions: 10
Worksheet time: 9mins
Kepanjangan CNC?
(a)
CNC dapat dioperasikan pada, kecuali:
Water Jet Cutter
Drilling
Sheet metal works
Tail Stock
The advantages of CNC, except:
can be used continuously
high accuracy
need to make a prototype or a model
saves time
The disadvantages of CNC, except:
more expensive than manually operated machines
operator only needs basic training and skills
can be updated by improving the software
can lead to unemployment
The ADVANTAGES OF 5 AXIS CNC. except:
no rigid tools may be used
to machine complex shapes in a single setup
reduces the machinist setup time and increases production rates
By eliminating multiple set-ups, time and errors are reduced
What are the Elements of CNC Machine?
Feed Rate
Input Device
Machine Control Unit
Machine Tool
How CNC Works, except?
Controlled by G and M codes.
G & M codes are manually generated
These are number values and co-ordinates
code is assigned to a particular operation
Programming Key Letters. Except:
R - Radius designation
F – Feed rate designation
G - General function
S - Spindle speed designation
Table of Important M codes. Except;
M00 Program stop
M01 Optional program stop
M02 Program start
M03 Spindle on clockwise
What are the challenges? except:
Programming knowledge required Maintenance is difficult
CNC machines are safe to operate
Skilled Operators
Computers
Costly setup
