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CNC MACHINING MATERIALS

Copper

At a glance

ProcessesLead Time

Finishing Options

TolerancePriceApplicationsAlloys

CNC Mill
CNC Lathe

As fast as 3 daysAvailable as-machined, media blasted, or hand-polishedISO 2768$$$Bus bars, gaskets, wire connectors, and other electrical applications101, 110

About the Material

101 and 110 copper alloys offer excellent thermal and electrical conductivity, which make them natural choices for bus bars, wire connectors, and other electrical applications. While 101 (also known as super-conductive copper) offers higher conductivity due to its purity (99.99% copper), 110 is generally easier to machine and thus more cost-effective.

5ada30bb10eb11a753a882c5 New CNC materials Q118 1110

Materials Properties

110 Copper

Yield Strength

Elongation at Break

Hardness

Density

Maximum Temp

McMaster Part Number

55,000 PSI
22%
Rockwell B90
0.284 lbs / cu. in
500° F
89885k117

101 Copper

Yield Strength (tensile)

Elongation at Break

Hardness

Density

Maximum Temp

McMaster Part Number

55,000 PSI
22%
Rockwell B90
0.284 lbs / cu. in
500° F
89885k117

 

Material Finish

Copper has a shiny reddish-orange finish, which varies slightly based on the surface finish method. Copper can be media-blasted and polished to achieve many different cosmetic surface finishes.

 

 

 

Design Recommendations

 

Min Wall Thickness

Min End Mill Size

Min Drill Size

Max Part Size

Undercuts

Radii : Depth

0.5 mm
0.8 mm (0.03 in)
0.5 mm (0.02 in)
1200 x 500 x 152 mm [x,y,z] (mill)
152 x 394 mm [d,h] (lathe)
Square profile, full radius, dovetail profiles
Depth must not exceed 12x drill bit diameter.
For end mills, depth must not exceed 10x tool diameter.

Cost Saving Tip

To reduce costs, limit the number of part setups, the number of inspection dimensions or tight tolerances, and deep pockets with small radii. If surface finish is not a concern, you may design your part to be made from the closest stock thickness, specified in a drawing.

CNC Machining Aluminum FAQs

ABS plastic is a low-cost engineering plastic, widely used for pre-injection molding prototypes. CNC machined ABS is a great option for production-like parts, where detail and mechanical properties are important.

 

Depending on the desired outcome for the project, ABS plastic can either be cut or engraved using CNC milling.

 
 

ABS plastic is an excellent choice for general purpose prototyping, pre-molding prototypes, parts that will receive impact and require toughness, or when low cost is desired.

 
 
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