10 Questions
What is the definition of Numerical Control (NC)?
A system where actions are controlled by the direct insertion of numerical data
In CNC, where are the instructions stored?
In a micro-computer attached to the machine
What type of codes control how CNC machines operate?
G and M codes
What is Direct Numerical Control (DNC)?
A set of NC machines connected to a main computer system
What is one of the advantages of CNC?
Increased productivity
What are the three basic components of an operational NC system?
Programme of instruction, machine control unit, machine tool
What is the difference between NC and CNC?
CNC instructions are stored as a program in a micro-computer attached to the machine, while NC doesn't involve a micro-computer
What does Direct Numerical Control (DNC) involve?
Establishing a direct interface between the DNC computer memory and the machine tools
What controls how CNC machines operate?
G and M codes, which are number values and coordinates assigned to particular operations
How does CNC contribute to increased productivity?
By handling much of the control logic of the machine through a micro-computer program
Study Notes
Numerical Control (NC)
- Numerical Control (NC) refers to the automation of machine tools through the use of numerical data.
CNC Machines
- In CNC, instructions are stored in the computer's memory.
- CNC machines operate based on coded instructions that control their movements.
Types of Codes
- CNC machines operate using G-codes and M-codes, which control their movements and actions.
Direct Numerical Control (DNC)
- Direct Numerical Control (DNC) involves direct connection of multiple CNC machines to a central computer, allowing for simultaneous control.
Advantages of CNC
- One of the advantages of CNC is increased productivity due to the ability to automate repetitive tasks.
Basic Components of NC System
- The three basic components of an operational NC system are a machine tool, a control system, and a data input device.
NC vs CNC
- The key difference between NC and CNC is that NC systems use a fixed, punched tape to store instructions, while CNC systems use a computer to store and execute instructions.
Direct Numerical Control (DNC)
- Direct Numerical Control (DNC) involves direct connection of CNC machines to a central computer, allowing for simultaneous control and monitoring.
Control of CNC Machines
- CNC machines operate based on coded instructions that control their movements and actions.
Contribution to Productivity
- CNC contributes to increased productivity by automating repetitive tasks, reducing human error, and improving accuracy.
Test your knowledge of Numerical Control (NC) and Computer Numerical Control (CNC) with this quiz. Learn about the definition and features of NC and CNC systems.
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