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Question 1. Define Numeraical Control Machine?
Answer :
Numerical control machine cane be defined as a form of programmable machine in which the process are controlled by a program of numbers, letters, and symbols.
Question 2. What Is Nc Part Programming?
Answer :
NC part programming is the step by procedure of by which the sequence of processing steps to be performed on the NC machine is controlled by a program of numbers, letters, and symbols.
Question 3. What Is Apt Language?
Answer :
APT [automated programming language]is a computer program, it automatically calculates the tool path, generates program and controls the machine by receiving general high level languages.
Question 4. Mention Any 4 Post Processor Statement In Apt?
Answer :
COOLNT END FEDRAT/
MACHIN/
RAPID
Answer :
CNC is system consists of a computer, controller and a NC machine tool. Computer is used to store and edit the program. Controller controls the tool path based on the program.
Question 6. What Is Meant By Machining Centre?
Answer :
The machining centre is CNC system with automatic tool changing arrangement that is designed to perform a verity of machining operations, with large number of cutting tools.
Question 7. What Is Part Program?
Answer :
Part program is a high level language containing the instructions for machining a part to various standard words, codes and symbols.
Question 8. What Is Post Processing?
Answer :
Post processing is a computer program that takes a generalized part program output and adopts it to a particular machine control unit and machine tool combination. It is the basic intelligence required to change the program into computer language.
Question 9. Write The Order Of Instructions In A Part Program?
Answer :
End of Preparatory function Feed function Tool function block.
Question 10. What Is Manual Part Programming?
Answer :
Manual part programming is a process of writing programs which consists of a set of instructions [contains codes, symbols and numbers] to carry out the machining of the work.
Question 11. What Is Preparatory Function?
Answer :
It is word address format represented by the letter G, Followed by a numerical code for the operation of the control unit to instruct the machine tool.
Question 12. What Is Canned Cycle?
Answer :
Canned cycle simplifies and shortens the programming in such way whenever any one of the operation is required.
Question 13. What Are The Major Areas To Be Considered In The Design Of Nc Machine Tools?
Answer :
Question 14. How The Heat Effect On The Machine Bed, Tool Holder Can Be Taken Care?
Answer :
Question 15. Explain Slide And Slideways?
Answer :
In general machine tools are provided with tables, slides, carriages etc., to carry the work pieces or cutting tools etc., These parts are sliding in nature and mounted on the ways that are fixed on the other parts (column, housing, bed or knee) of the machines known as sliding ways.
Question 16. What Kind Of Pc Is The Minimum Hardware Requirement For Operate This Cnc-program?
Answer :
Use a PC 486 DX with 33 Mhz or higher. It requires a DOS Operation System installed, e.g. MS-DOS 6.22. MS-Windows 3.1/95/98 also includes an usefull DOS-Mode.
Question 17. Which Steppermotor-driverboards Are Compatible To This Cnc-program?
Answer :
Those with 5V CMOS/TTL logic and 2 Bit (direction and clock/enable) standard signals.
Question 18. How Does It Work About The Reference- And End-switches?
Answer :
Question 19. How Is The Order Of Signals Sending Out To The Printerports?
Answer :
Question 20. How Do I Have To Connect The Step-encoders And How Does It Work?
Answer :
Question 21. Some Producers Of Steppermotor-driverunits Offer A "parallel-interface". Do I Need It?
Answer :
Not required!
Answer :
Question 23. Is It Possible Milling From Cad Data And Drawings?
Answer :
Yes! With the Fullversion we deliver a tool for DXF- and HPGL-Import.
You may also use the integrated Teach-In function for draw figures and then plot with your machine. It is generated a programcode in the file "teachdat".
Call of Teach-In: "cnc teach 100 bs" The "100" means 100 percent screenscale!
Question 24. How Do I Realise Effective Programming, Axis-transportation And Serial Works?
Answer :
Answer :
Question 26. Do The Axis Need All The Same Mechanic Gear And Spindle Slopes?
Answer :
Each axis can have a different gear and spindle slope.
Question 27. How Driving To More Precise Positions Than The Standard 0.1mm Raster?
Answer :
Full values in the CNC-code are 1/10mm-Motions. This makes coding quick and easy.
Decimal values, e.g. g 50.12 22.4 11.7 are in real X=5.012mm Y=2.24mm Z=1.17mm.
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