CNC, Computer Numerical Control Machining - Material specifications from ARPTECH
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CNC, Computer Numerical Control Machining is subtractive process in nature opposed to other RP technologies. Process starts with the raw material, little larger than the finished model and remove extra material step by step using various milling cutters. Parts can be machined directly out of engineering plastics, ferrous or non ferrous metals. We primarily use following plastic materials for prototypes or other engineering applications.
 
 
:: General Guidelines for Material selection ::
LightBlue-Poor results and DarkBlue - Best results
 
ABS
Acetal
(Delrin)
Nylon
HDPE
PET-P
Teflon
Compressive Strength
4
1
3
5
2
6
Tensile Strength
3
2
1
4
1
5
Flexural Strength
4
3
2
5
6
1
Dielectric Strength
2
3
1
1
3
1
Flexural Modulus
2
4
1
3
6
5
Impact Strength (Notched Izod)
6
2
4
1
4
6
Continuous working Temp in Air
5
5
3
5
3
1
Machinability
3
2
4
1
3
2
Water Absorption
3
4
6
1
2
1
Use this material for
Durable rigid and low cost parts.
 
 Good strength & wear resistance. Dimensionally stable. Excellent Impact & wear resistance. High sliding properties. Excellent abrasion and chemical resistance. Dimensionally stable with improved tensile strength. Low co-efficient of friction, high temp operating and stability.
Disclaimer: This table has been correlated to assist you in material selection and only to be used as a reference.

 
Other Materials available for machining: We also machine prototypes out of ferrous and non ferrous materials e.g. Aluminum, Brass, Copper, Steel, Wood, Wax etc.
 
Other Materials from Arptech: | FDM | SLA | SLS | 3DP | Vacuum Casting | :: Back Home ::