Carbon fibre adds strength and electrical conductivity for static-dissipative structural parts.
Carbon-Filled PEI is a Carbon-Filled grade within PEI (Ultem), widely used in industrial CNC machining due to its balanced mechanical, thermal, and machinability performance.
Carbon fiber reinforcement delivers higher strength and electrical conductivity, suitable for static-dissipative structural parts.
Carbon-Filled PEI grades are commonly used in the following fields and scenarios; our CNC machining services can provide custom parts for these industries.
Carbon-Filled PEI demonstrates the following core advantages in CNC machining and end-use applications.
The following are key process points when machining PEI (Ultem) material, to ensure part quality and machining efficiency.
PEI is highly hygroscopic; dry at 150°C for at least 4 hours before machining to prevent hydrolysis-induced bubbles and surface defects.
Use sharp carbide tools; PEI is heat-sensitive, so avoid excessive cutting zone temperatures that cause surface discoloration.
Perform post-machining stress-relief annealing to eliminate residual stresses and prevent cracking during assembly or service.
Polishing or vibratory tumbling yields a uniform smooth surface; avoid contact with ketone and halogenated hydrocarbon solvents.
Besides Carbon Filled PEI, PEI (Ultem) offers several other grades with different characteristics. Click to view details.
Send your STEP / DWG / PDF drawing and get a detailed quote with free DFM analysis and process recommendations within 2 hours. No minimum order — from 1 piece.
