cnc machining plastic parts
Item name | Custom CNC Machining Plastic Parts Plastic |
Material Available | ABS, POM,Stainless Steel, Aluminum Alloy, Brass, Copper, Titanium,
ect |
Surface Treatment | Electropolishing, Sandblasted+Anodized, Plating, Electrophoresis,
ect |
Packaging | Inner-PE Bag, Outer-Standard Carton Box Or Customized |
Equipment | Advanced CNC Lathe, Milling Machine, Stamping Machine, Spring
Machine, ect |
Processing | CNC Turning, CNC Machining, CNC Milling, Grinding, Laser Cutting,
EDM Wire Cutting |
Application | Automotive/ Agricultural Electronics/ Industrial/ Medical/ / New
Energy/Construction |
There are many kinds of machined plastics, including
- Acrylic/PMMA
- Delrin / POM/Acetal
- Nylon / Polycaprolactam
- PC / Polycarbonate
- PEEK / Polyether ether ketone
- UTLTEM/PEI
- PTFE / Teflon
- PPSU
The thermal expansion rate of plastic is more than 10 times that of
metal. The heat dissipation of plastic parts is slower than that of
metal, and the softening (melting) temperature of plastic parts is
much lower than that of metal. Therefore, engineers should take
measures to prevent workpiece deformation during machining.
- Cutting speed and feed rate of machined plastic parts
The increase of feed rate and milling speed also shortens the
milling time, and due to the improvement of heat dissipation
conditions, it is worth noting that the increase of CNC milling
speed of plastic will increase the temperature. According to the
statistics of engineers, the cutting speed will increase by 10%,
and the surface temperature of plastic parts will increase by about
14% - 30%.
- Selection of coolant for machining plastic parts
Although ordinary cold liquids are suitable for machining plastics,
it is worth noting that they may cause stress rupture of amorphous
plastics, such as ULTEM, PC and PPSU Therefore, the factory in the
processing of ULTEM, PC, PPSU, will use spray and compressed air as
a cooling.
