What is CNC Machining?

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Metal prototypes are machined on CNC equipment. Low to moderate pricing.
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Computer-controlled machines are able to cut and shape metal blocks for prototyping and manufacturing.

How It Works
CNC Machining starts with a raw block of metal that gets cut away and shaped down to the final shape by computer-controlled machines, such as mills and lathes. This process is typically used for manufacturing, fixtures, and even art, but it can also be used to create product prototypes.

Typical Uses
  • Production Parts
  • Special-purpose Parts or Fixtures
  • Rapid Prototypes
Costs
Example quotes for a 2-inch sphere:
Process Qty 1 Qty 10
SLA $376 each $109 each
SLS $501 each $121 each
FDM $182 each $154 each
PolyJet $479 each $139 each
Machined Plastic $458 each $139 each
CNC Aluminum $90 each $76 each
Urethane Castings N/A $120 each
So, you can see how volume discounts can be a big factor, especially for processes that are slow in the vertical direction.

For More Information
Wikipedia article

See the Next Article: Sheet Metal Manufacturing

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