Muti_function airframe demonstrates implement thermoplastic on composite material half carapace and laser of use CO2 of below half carapace solder, total length is 8 meters.
Of MFFD solder the Co that left airframe connect uses Fraunhofer IWS to developNTIjoin craft is made.
According to saying be the biggest on the world thermoplastic composite material (TPC) the connect of join of airframe of left and fore-and-aft fluctuation of plane structure solders successfully already. Muti_function airframe demonstrates implement (MFFD) 8 meters long fluctuation airframe half carapace carried 2023 toward Germany Si Dade's Fulaoenhuofu creates technology and advanced material institute (IFAM, use Fulaoen suddenly material and bridge technology institute (IWS, german heart is tired this) the CONTIjoin of development joins the technology has link continuously.
This work is completed in BUSTI project, this project is clean sky 2 (Clean Sky 2- present Clean Aviation) the one share that MFFD plans, aim to raise the technology that solder and using is not the TPC plane airframe that bore and fastener assemble to plan a level (TRL) , make every months produce 60-100 to wear a plane, airframe weight decreases 10% , regular cost decreases 20% .
Hexapods (coping yellow) secure the carapace on MFFD go up in next carapace, at the same time use CONTIjoin equipment is together both join (be located in picture center) .
BUSTI project group is in charge of soldering to receiving a ribbon, housing falls in order to join on airframe. Take the belt that broadens gradually by 6 to comprise, every time, with fluctuation crust photograph of medium a group of step matchs. These 6 belts are You Dongli (Toray) TC1225 is one-way (UD) take 6 when make 1.2 millimeter large solid ties is much to lamination material, this are one-way (UD) belt include T700 carbon fiber (CF) with Victrex (Lancashire, england) low fuse-element gets together fragrant base ether ketone (LMPAEK) polymer.
The research of Fraunhofer IWS overcomes · wave Er in assistant dust (Eric Pohl) path, CONTIjoin“ is actually join CFRTP a pressing plate that take a layer is successive originally in all the knot arrives on the airframe crust that match. This and automatic shop silk (AFP) medium solid knot procedure is very similar, but we use CO2 laser, is not the fiber laser of AFP model. ”
Because join a pressing plate that take a layer arrive from the first 60 millimeter the last 360 millimeter broaden gradually, so laser of 3.5 kilowatt CO2 (10.6 micron wavelengh) as dynamic as height beam of light reflexes coupling, reflex of this beam of light makes energy bundle in the oscillation on welding line width.
Be in left, coThe orange gyro wheel of NTIjoin equipment increases in use carbon fiber thermoplastic plastic (CFRTP) join a belt join fluctuation MFFD uses force when half carapace.
Thorough knowledge laser former originally in all the optics of knot end-effector and mechanical setting.
Come true in BUSTI project solder contact is outspread two side grow passenger door cut 8 meters MFFD airframe of half carapace full-length, the biggest solder length is 4.5 meters.
Aimen Centro Tecnológico (Spain Boliniao) with FFT (German Fu Erda) through WELDER project use ultrasonic soldered to be finished successfully overlap on the right side of MFFD the additional work of airframe connect.
Meanwhile, in a project of the airbus company that funds in German government, fraunhofer IWS is advancing the CONTIjoin of complex curved surface, compare with the onefold curvature photograph of MFFD airframe, this project will be finished 2026.
Last word
Diameter 4 rice, 8 meters long thermoplastic cylindrical shell of answer material airframe experiments, come here production job is finished entirely. Assemble from housing of production spare parts, fluctuation, fluctuation housing join, show an a lot of new design, new technology.
2030-2035 year have thermoplastic once the “ new A320” of answer material airframe enters the market, c919 of Boeing B737, Shang Fei competed very hard on civilian machine market with it!
