Rapid fabrication of 3D CFRP parts by hot forming of pre-cured CFRP sheets

A precure–hot forming–postcure (P–HF–P) process, in which CFRP prepregs were firstly hot pressed to eliminate its interlayer voids and pre-cured followed by formed into 3D shapes finally post-cured, was proposed for the rapid fabrication of parts. The void fraction, flexural modulus strength different regions parts fabricated P–HF–P autoclave processes evaluated. Then overall axial compression transverse bending properties experimentally numerically investigated. improved increasing pre-curing time a fraction 2.5% comparable achieved process. manufactured process with 10 min had load-bearing energy absorption capacities those under bending. comprehensive comparison properties, capacity ability indicates that achieves better balance between high productivity quality products than