What is CFRP?
Carbon Fiber Reinforced Plastic is advanced lightweight composite material made of carbon fiber and thermosetting resins.
Carbon fiber machining for post-processing
Carbon Fiber Machining – Post-processing is the final stage, and once complete, the CFRP part is ready for assembly. In post-processing, carbon fiber trim removes excess material if necessary, and carbon fiber trim is used to machine part features in CFRP. Using a Robotic Waterjet or Robotic Router – Unmatched precision and speed using robotics for CFRP post-process trimming, laser software, and router software technology can make a difference.
Carbon fiber robotic cutting systems are easy to use, easy to care for, and easy to retrieve. Learning Vibration Control, combined with Adaptive Process Control (APC) technologies, increase robotic cutting speed by up to 60%. It is quite doable from the get-go. Accufind and Recalibration are technologies that use IR and CCD vision technology to take care of precise trajectory accuracy while maintaining high speed CFRP cutting.
Waterjet, dry router and wet router technologies could also be suitable for trimming carbon fiber or cutting carbon fiber supported parts properties and production requirements.
Fiber in CFRP
CFRP starts out as a plastic acrylonitrile powder that is mixed with another plastic, such as methyl acrylate or methyl methacrylate. It is then combined with a catalyst during a conventional suspension or solution polymerization reaction to make a polyacrylonitrile plastic.
The plastic mix with certain chemicals and pumped through small jets into a chemical bath or cooling chamber where the plastic coagulates and solidifies into fibers. this is often almost like the usual method for forming polyacrylic textile fibers.
Stretching helps the molecules within the fiber and provides the insight for the formation of tightly bound carbon crystals after carbonization. Before fibers can carbonize, they must be chemically altered to change their linear atomic bond to a more stable ladder bond. To attempt this, the fibers need to be heated in air at around 380-600 F for about an hour. This causes the fibers to select oxygen molecules and rearrange the structure of the atomic bond. Once this process is finished, the fibers will stabilize.
The he carbonization process begins. The fibers are heated from 1800F to 5300F for a couple of minutes in an oven filled with a gas mixture and without oxygen. the shortage of oxygen prevents Carbon fiber sheet.
The atoms are removed, the remaining carbon atoms begin to form tightly bonded carbon crystals that line up parallel to the long side of the fiber. Once this carbonization process is complete, the fibers will have a poorly adherent surface. To offer the fibers better bonding properties, their surface must be oxidized, giving the fibers a rough texture and increasing their mechanical bonding capacity.
The following is the sizing process. To attempt this, the fibers are covered with a cloth such as epoxy or urethane. This protects the fibers from damage within the winding and weaving phase. Once the fibers are coated, they are spun into cylinders called bobbins. The bobbins are then placed during a machine that twists the fibers into yarns. These threads usually weave a weave of carbon fiber filaments.