Please enable JavaScript.
Coggle requires JavaScript to display documents.
CNC (Features of a CNC machine (Spindle Unit, Work table, X, Y, Z axis,…
CNC
Features of a CNC machine
Spindle Unit
Work table
X, Y, Z axis
Machine Control Unit
Automatic Tool Changer
Constraints of using CNC to make prototype
Need work holding device
Require trained machinist to operate
Parts need to be split for 3-axis machining
Cutter diameter size not able to produce sharp inner corner
What is NC Program?
Can be generated from Computer Aided Manufacturing (CAM) system
A text base program consists of alpha-numeric code.
Also known as G-code
Advantages of using CNC to make prototype
Can cut on hard material, like aluminum, acrylic, steel
Prototype can be used for functional test
Is programmable
What is a CAM system?
It define the Toolpath
Machining Parameters
Spindle Speed
Cutter rotational speed (rpm)
Feed rate (mm/min)
Step-Depth
Step-Over
Roughing and Finishing
How it works?
Remove material from a solid workpiece until the desired sahpe
The process is programmable. Tool movement is controlled by NC program,
Short name for
Computer Numerical Control