CNC

[tanmay]

HELLO,
SOMEONE PLEASE DEFINE THE CODE (1/2-20 UNF-2A) EXPLICITLY?

[sachin]

hello tanmay,
Basically this code is defined for indentification of threads.
Respectively terms of code are defined below:-
1/2 for Nominal size(major di)
20 for threads per inch
UNF,UNC AND UNEF are thread series.
UNF:Fine threads for automotive and aircraft
UNC:Coarse threads for use where vibration is small
UNEF:Extra fine threads for instrumentsetc
2 for Class of thread(loose tolerances,close tolerance and tight fit)
A for external threads and B or internal threads

[milind]

hello,
i am using 5 axis router m/c in which i need to feed a cutting programme.so please suggest me the suitable programme.

[milind]

please differentiate b/w CNC and AC??

[sachin]

hello milind,
In CNC m/c the processing parameters(depth,feed rate,torque etc ) which are set by part programmer are held constant during manufacturing process.
while in Adaptive control m/c the system can adjust the processing parameters through closed-loop feedback control.

[Priyanka]

hello,
please define the term "Basic unit length".

[tanmay]

hello priyanka,
The minimum possible incremental movement is called the basic unit length (BLU).The BLU might be on the order of 0.01 mm in typical machine tool system.

[zuber]

hello,

i was asked in an interview to define the interagation of CAD,CAPP AND CIM?
PLEASE CLARIFY

[milind]

hello zuber,
basically you were asked the steps involved in designing and manufacturing a product through CAD CIM AND CAPP.
So firstly, through CAD design analysis and testing is done .
Then,manufacturing process selection and eqipment are selected through CAPP AND CAM.
After production of product,inspection and quality check is done through CIM.

[zuber]

Thank you milind,
i had got confused to represent ....good way of explaination .....
i have a query about the routing sheet also??