KraussMaffei: Carbon Rims made with HP-RTM for AIM
The CFRP Rim consists of carbon fiber and epoxy resin as material. After carbon fiber pre-form has been made, it is placed inside HP-RTM tool where the epoxy resin will be injected into cavity with KraussMaffei HP-RTM technology. The resin material is automatically mixed with high pressure up to 200 bar inside RTM mixing head and during the injection the in-mold-pressure could reach to 100 bar, which ensures the resin impregnate carbon fiber thoroughly and avoid dry spot or voids. After resin reaction is mature, the mold opens and the slides unlock automatically for demolding the parts.
Why and Whom
KraussMaffei and Advanced International Multitech Co., Ltd(AIM) Taiwan developed this HP-RTM CFRP Rim together for providing solution to high performance sport cars segment.In comparison to low-pressure processes, HP-RTM requires more complex dosing technology, but also delivers consistently high-quality components with particularly precise surface quality – and with shorter cycle times. Short cycle times are particularly important in the automotive industry. In order to realize this CFRP Rim with HP-RTM, KraussMaffei co-worked with AIM tooling concept, and assisted from machinery planning to proto-typing, equipment optimization then to production.
Partners
Advanced International Multitech Co., Ltd (AIM) Taiwan
Key Benefits
A rim body made of CFRP (carbon fiber reinforced plastic), to which the visually-appealing aluminum wheel spider is bolted. These wheels are approximately 20 to 30 percent lighter than those made of pure aluminum and, at the same time, are around 20 percent stronger than aluminum rims. Sporty and ambitious drivers can accelerate faster thanks to the reduced weight and, with more of the unevenness of the road able to be dampened by the suspension, the driving experience is also more pleasant.