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Computer Numerical Control (CNC) machining is a manufacturing process in which pre-programmed computer software controls the movement of tools and equipment - Leaving Cert Engineering - Question c - 2022
Question c
Computer Numerical Control (CNC) machining is a manufacturing process in which pre-programmed computer software controls the movement of tools and equipment. (i) Ex... show full transcript
Worked Solution & Example Answer:Computer Numerical Control (CNC) machining is a manufacturing process in which pre-programmed computer software controls the movement of tools and equipment - Leaving Cert Engineering - Question c - 2022
Step 1
Explain, with the aid of a diagram, the term 3-axis CNC machining.
Answer
3-axis CNC machining refers to a type of CNC machining where tools move along three different axes: X, Y, and Z. These axes are defined as follows:
- X-axis: Represents the width of the workpiece.
- Y-axis: Represents the height of the workpiece.
- Z-axis: Represents the depth.
In a graphic diagram, each axis is illustrated, typically with the X and Y axes representing a flat, two-dimensional plane while the Z-axis represents the vertical dimension.
This configuration allows machines—like milling machines and 3D printers—to operate precisely in three-dimensional space, enabling intricate designs and accurate measurements.
Step 2
Describe the following CNC terms: Simulation;
Answer
CNC simulation tools are mathematical applications designed to predict the behavior and performance of programmed manufacturing processes. They play a crucial role in testing and verifying CNC programs, which are usually written in G-code. Before the instructions are sent to the machine, simulation helps ensure that the path of the tool will be correct without damaging the material or the machine itself.
Step 3
Describe the following CNC terms: Tool offsets.
Answer
Tool offsets are specific values programmed into a CNC machine to define the center point of the cutting tool relative to the workpiece. This ensures that the cutter is correctly positioned for operations, allowing the machine to execute cuts with precision based on the tool's dimensions and the workpiece setup.