Precision Metal Workshop Co., Limited |
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CNC milling parts made of Aluminum 6061 T6 and assembled into a medical device.
Surface finish we can apply to the machining parts are:
CNC Milling is the removal of metal with a rotary cutter or other rotating cutting tool. With precise equipment, and a wide variety of tooling, we are able to cut just about anything.
Our customers choose PMW for custom CNC milling, because we are
able to effectively and accurately machine custom parts and
enclosures, with no minimum orders. At PMW, you don't need to worry
about small-quantity order being bumped for a production run.
PMW's CNC Machining Division includes CNC milling, as well as CNC Turning and CNC Router. We offer CNC machining of aluminum, copper and plastics, both for sheet metal and bar stock.
Overview: What is CNC?
The Basics Of CNC Machining
CNC (Computer Numerical Controlled) machining is a means to remove
material with high precision machines, using a wide variety of
cutting tools to create the final design. Common CNC machines
include vertical milling machines, horizontal milling machines,
lathes, routers.
How CNC Machining Works
To successfully make a part on a CNC machine, skilled machinists
create programmed instructions using CAM (Computer Aided
Manufacturing) software in conjunction with the CAD (Computer Aided
Design) model provided by the customer. The CAD model is loaded
into the CAM software and tool paths are created based on the
required geometry of the manufactured part. Once the tool paths are
determined, the CAM software creates G-Code (machine code) that
tells the machine how fast to move, how fast to turn the stock
and/or tool, and where to move the tool or workpiece in a 5-axis X,
Y, Z, A, and B coordinate system.
Types Of CNC Machining
There are several types of CNC machine — namely the CNC lathe, CNC
mill, CNC router, and Wire EDM.
With a CNC lathe, the part stock turns on the spindle and the fixed cutting tool is brought into contact with the workpiece. Lathes are perfect for cylindrical parts and are easily set up for repeatability. Conversely, on a CNC mill the rotating cutting tool moves around the workpiece, which remains fixed to a bed. Mills are all-purpose CNC machines that can handle most any machining process.
CNC machines can be simple 2-axis machines where only the tool head moves in the X and Z-axes or much more complex 5-axis CNC mills, where the workpiece can also move. This allows for more complex geometries without requiring extra operator work and expertise. This makes it easier to produce complex parts and reduces the chance of operator error.
Material | ||
Metal | Aluminum | Aluminum 5052 Aluminum 6061-T6 |
Aluminum 6063 Aluminum 7075 | ||
Stainless steel | SUS303,SUS304,SS316,SS316L,416 | |
17-4, 718H | ||
Steel | A36, 12L14, 1018,1045, 4140, 4130, 4142, | |
O1, D2 tool steel, A36 1008 , Alloy42 | ||
Brass | 260, C360,H59,H60,H62,H63,H65,H68,H70 | |
Copper | C110, C101 | |
Bronze | C932 | |
Plastic
| Carbon fiber | |
Acetal | (Polyoxymethylene (POM)) [Delrin] | |
PEEK | Polycarbonate | |
Polystyrene | Polyether Ether Ketone | |
Nylon | ||
ABS | ||
PVC | ||
Acrylic |
Finish Result | |
As Machined | Sharp edge and burrs will be removed |
Bead Blast | Smooth, matte appearance |
Anodized | Corrosion-resistant finish. Parts can be anodized in different colors—clear, black, red, blue, yellow and gold etc. |
Powder Coat | This is a process where powdered paint is sprayed onto a part which is then baked in an oven. |
Black Oxide |
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Electroless Nickel Plating | |
Electropolishing | |
Passivation | |
Zinc Plating | |
Others | |
Tolerance | +/-0.005mm |
Lead Time | 1-2 weeks for samples,3-4 weeks for mass production |
Drawing Accepted | Solid Works,Pro/Engineer, AutoCAD(DXF,DWG), PDF |
Payment Terms | TT/Paypal/WestUnion |
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Electroless Nickel Plating |