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Rapid Prototyping Methods (Subtractive Method (CNC (Computer Numerical…
Rapid Prototyping Methods
Subtractive Method
CNC (Computer Numerical Control)
Challenges
Not able to mill the whole design in one setup
Limitation of tool-bit (cutter diameter) size to produce small details
Deciding the depth of cut, the tool-bit size
Deciding how to hold the part on the machine table
How it works?
Remove material from a solid workplace until the desired shape
The process is programmable, text control by NC program
Advantages
Process is programmable
Can be cut on hard-metallic material
Smooth surface finish
How to create the NC program?
Manual programming (Text file)
Can be generated from Computer Aided Manufacturing (CAM) system
Laser Cutting
EDM
Addictive Method
Wet Process
Dry Process