PEEK PEI Plastics High Temp Corrosion Proof Aerospace Automotive
Industrial
Plastic Appliance in Lndustry
Material | Core Properties | Machining Tips | Industrial Applications |
|---|
POM | High rigidity, low friction, chemical resistance | High-speed cutting with cooling to prevent thermal deformation | Gears, bearings, structural parts |
Nylon | High toughness, wear resistance, moisture control | Dry machining or humidity control to avoid swelling | Pulleys, bushings, mechanical housings |
PTFE | High-temp (260°C), chemical inertness, self-lubricating | Low-speed cutting with sharp tools to reduce gumming | Seals, valve liners, insulators |
PEEK | High-temp (260°C+), biocompatible, high strength | High-temperature machining to avoid delamination | Aerospace turbine parts, sensor housings |
ABS | Impact resistance, dyeability, low cost | Low feed rate with cooling to prevent warping | Automotive dashboards, drone frames |
PC | Transparency, UV resistance, impact resistance | Avoid overheating tools to reduce stress cracks | Safety visors, optical lens mounts |
PEI (Ultem) | Flame retardant, high-temp (170°C), dimensional stability | High RPM tools to avoid carbonization | Electrical connectors, aerospace interiors |
PMMA | Optical clarity, weather resistance, polishable | Low-speed cutting with coolant to prevent melting | Optical covers, display models |
HDPE | Corrosion resistance, lightweight, food-safe | Sharp tools to minimize burrs | Chemical tanks, food processing parts |
The Advantages of Engineering Plastics over Metals
Breakthrough in Technical Performance:
Lightweight: PEEK density is only 1/3 of aluminum alloy, with equal
strength. The aviation bracket reduces weight by 60% and fuel
efficiency increases by 8%;
Corrosion resistance: PTFE has a lifespan of 20 times that of ultra
carbon steel in 98% sulfuric acid, reducing the annual maintenance
cost of chemical valves by 70%;
Function integration: 5-axis CNC one-time molding of complex flow
channel structures (such as automotive turbocharger housings),
reducing the welding and assembly processes of metal parts.
Full cycle cost advantage:
Processing cost reduction: PEI injection molded connectors replace
copper alloy machined parts, reducing single piece costs by 45%;
Energy consumption optimization: Nylon gears replace steel gears,
reducing friction losses in the transmission system by 30% and
extending equipment life by 2 times.
Sustainability driven:
Circular economy: Medical grade PEEK can be sterilized and reused
at high temperatures, reducing the carbon footprint of titanium
alloy implants by 60%;
Design freedom: 3D printing topology optimization of plastic
load-bearing components (such as drone skeletons), reducing
materials by 80% compared to traditional metal structures.
Typical Alternative Scenarios:
Aerospace: PEEK replaces titanium alloy fuel pipelines, with a
temperature resistance of 260 ° C and a weight reduction of 55%;
Energy: PEI insulation replaces copper-clad aluminum high-voltage
connectors, increasing arc resistance by three times;
Automobile: Carbon fiber reinforced PA66 replaces steel suspension
links, increasing fatigue resistance by 40%.
CNC Machining Tolerance:
Precision Machining | Metals, PEEK, And
ULTEM with Drawing | Other Plastics
with Drawing | No Drawing |
Linear Dimension | +/- 0.0025 mm
+/- 0.0001 inch | +/- 0.05 mm
+/- 0.002 inch | ISO 2768 Medium |
Hole Diameters
(Not Reamed) | +/- 0.0025 mm
+/- 0.0001 inch | +/- 0.05 mm
+/- 0.002 inch | ISO 2768 Medium |
Shaft Diameters | +/- 0.0025 mm
+/- 0.0001 inch | +/- 0.05 mm
+/- 0.002 inch | ISO 2768 Medium |
Why Choose Us to Process for You?
Choosing our CNC machining services ensures not only precision and
quality but a partnership built on trust and reliability. At Polestar Metal, we are committed to delivering excellence in every aluminum
component we produce. From prototyping to full-scale production, we
are equipped to meet your specific needs and bring your designs to
life.
