CNC Milling
CNC Milling is a cost effective and precision way to make a wide variety of parts from small to large quantities. We guarantee all designs we handle will remain confidential, and we are able to work under an NDA if requested. All parts we manufacture will be made in the USA out of our Everett, Washington facility. If you need anything from a prototype to a full production run of parts and want to work with a company that has a proven track record for success, please contact Constance Machine today for a free quote!
CNC Milling Advantages
CNC Milling is subtractive manufacturing method that has several advantages over other manufacturing methods.
- Can produce parts of many shapes and sizes, although it excels at prismatic parts.
- Tight dimensional tolerances can be held.
- Smooth surface finishes can be achieved when specified.
- Cost-effective for both prototyping and production runs.
- Most metals, plastics, and composites can be machined.
Design Considerations
There are several things to keep in mind when designing a part for CNC Milling.
- Avoid pockets that are both thin and deep, as this is difficult to machine and will increase the part price.
- 90 degree corners in pockets are impossible to machine on a mill, so consider using a radius. The radius you use should be at least 1/3 the depth of the pocket.
- Add chamfers to sharp edges so that burrs do not need to be removed by hand.
- Thin walls can be difficult to machine and add the risk of chatter marks.
Horizontal Mills
| Machine | Quantity | Number of Axis | Max Travel |
|---|---|---|---|
|
Okuma MB5000HII |
2 |
4 Axis |
X 30″, Y 32″, Z 30″ |
|
Mori Seiki NH4000 |
1 |
4 Axis |
X 22.5″, Y 22.5″, Z 24.5″ |
Vertical Mills
| Machine | Quantity | Number of Axis | Max Travel |
|---|---|---|---|
|
Mori Seiki DV5100 |
4 |
3 Axis (1x 4 Axis) |
X 40″, Y 20″, Z 20″ |
|
Mori Seiki NV5000 |
1 |
3 Axis |
X 31″, Y 20″, Z 20″ |
|
Fanuc Robodrill T14iA |
1 |
3 Axis |
X 19″, Y 15″, Z 12″ |
|
Fanuc Robodrill T21iF |
1 |
3 Axis |
X 27″, Y 15″, Z 13″ |
|
Fanuc Robodrill T21LiB |
1 |
4 Axis |
X 27.5″, Y 15.75″, Z 13″ |