MMT - MODUL MONOCOQUE TECHNOLOGIE
No other material offers as much potential as carbon. In order to be able to optimize the performance characteristics further, we at ROTWILD comprehensively invested in basic research. The result is the new manufacturing method we call Module Monocoque Technology (MMT).
The MMT technology makes the construction and the production of carbon frames possible, with which the material properties can be used optimally. Additionally the MMT technology offers high process security as well as an extensive quality assurance over the entire manufacturing process – only so it is possible to convert the extremely high manufacturing requirements for carbon frames.
Starting point for the production of MMT carbon frames forms our Seamless Fusion Procedure (SFT). With the help of this technology it is possible for our processing experts to interconnect the frames from individual prefabricated modules smoothly in order to manufacture an extremely homogeneous carbon structure, which is absolutely free from creases.
At the same time the module production allows an optimal quality assurance. Each module is manufactured thereby on the basis of a given processing plan by experienced experts in manual work, checked and documented directly afterwards for its quality. If the frame is joined together to a whole in the concluding manufacturing step, we use only modules, which successfully went through quality controls, which had been defined before.
Central aspect of the MMT technology is the choice of materials. In principle for each ROTWILD carbon frame only raw materials are used, which are subject to the air and space travel industry guidelines and are certified accordingly. The starting point, in terms of material are so called “Prepregs”, a fibre semi-finished material. These up to 0,007 mm thin carbon fibres are already pre-impregnated with epoxy resin (matrix) and they are available in the form of roles for the subsequent treatment. The quality of this pre-impregnating is crucial for the later characteristics of the carbon frame, because only the constant distribution and the correct volume-ratio from fibre to resin leads to the ideal power-to-weight ratio. With the help of the MMT technology different load-fair fibre types can be used. For the production
The MMT technology makes the construction and the production of carbon frames possible, with which the material properties can be used optimally. Additionally the MMT technology offers high process security as well as an extensive quality assurance over the entire manufacturing process – only so it is possible to convert the extremely high manufacturing requirements for carbon frames.
Starting point for the production of MMT carbon frames forms our Seamless Fusion Procedure (SFT). With the help of this technology it is possible for our processing experts to interconnect the frames from individual prefabricated modules smoothly in order to manufacture an extremely homogeneous carbon structure, which is absolutely free from creases.
At the same time the module production allows an optimal quality assurance. Each module is manufactured thereby on the basis of a given processing plan by experienced experts in manual work, checked and documented directly afterwards for its quality. If the frame is joined together to a whole in the concluding manufacturing step, we use only modules, which successfully went through quality controls, which had been defined before.
Central aspect of the MMT technology is the choice of materials. In principle for each ROTWILD carbon frame only raw materials are used, which are subject to the air and space travel industry guidelines and are certified accordingly. The starting point, in terms of material are so called “Prepregs”, a fibre semi-finished material. These up to 0,007 mm thin carbon fibres are already pre-impregnated with epoxy resin (matrix) and they are available in the form of roles for the subsequent treatment. The quality of this pre-impregnating is crucial for the later characteristics of the carbon frame, because only the constant distribution and the correct volume-ratio from fibre to resin leads to the ideal power-to-weight ratio. With the help of the MMT technology different load-fair fibre types can be used. For the production
of ROTWILD carbon frames, mainly so-called HT-fibres (HT = High Tenacity) are used. Due to the modular structure frame, it is now possible to also use different carbon fibre types (HM = High Modulus or HST = High Strain and Tenacity) besides HT-fibres, in order to purposefully improve special problem definitions like e.g. higher rigidities (HM) or the mechanical behaviour of the frame with falling rocks or impacts (HST).
Apart from the pure weight reduction compared to metallic materials, especially the absorption characteristics of the material come to play with the ROTWILD frames, which are produced with the MMT procedure. High frequency oscillations or vibrations, which will arise with the fast riding over roots or stones, are reduced better (energy absorption) in the large boundary surface between fibre and resin (matrix) compared to metallic materials (e.g. aluminum). Before the MMT manufacturing process, our engineers purposefully adjust the rigidities and/or flexibleness, and the so-called „comfort“ of the carbon of the frame. By a precise selection of fibre orientation and wall thickness in combination with the different fibre types the characteristics of the individual modules can be directly affected in accordance with the construction and development defaults.
The new ROTWILD production technology MMT makes an improved conversion of the extremely elaborate and complex requirement at construction, the manufacturing and quality assurance of carbon frames possible. Since the entire production process is subdivided into individual process steps (modules), the sources of error are eliminated before.
New ways in the frame construction become feasible, because now the possibility exists to precisely affect the mechanical characteristics of the ROTWILD frame (rigidity, indulgence or absorption characteristics) and to solve material-specific problem definitions (sensitivity to impact) both during the development and during the manufacturing of the ROTWILD frame.
RESULT:
A ROTWILD carbon frame with unique quality and performance.
Apart from the pure weight reduction compared to metallic materials, especially the absorption characteristics of the material come to play with the ROTWILD frames, which are produced with the MMT procedure. High frequency oscillations or vibrations, which will arise with the fast riding over roots or stones, are reduced better (energy absorption) in the large boundary surface between fibre and resin (matrix) compared to metallic materials (e.g. aluminum). Before the MMT manufacturing process, our engineers purposefully adjust the rigidities and/or flexibleness, and the so-called „comfort“ of the carbon of the frame. By a precise selection of fibre orientation and wall thickness in combination with the different fibre types the characteristics of the individual modules can be directly affected in accordance with the construction and development defaults.
The new ROTWILD production technology MMT makes an improved conversion of the extremely elaborate and complex requirement at construction, the manufacturing and quality assurance of carbon frames possible. Since the entire production process is subdivided into individual process steps (modules), the sources of error are eliminated before.
New ways in the frame construction become feasible, because now the possibility exists to precisely affect the mechanical characteristics of the ROTWILD frame (rigidity, indulgence or absorption characteristics) and to solve material-specific problem definitions (sensitivity to impact) both during the development and during the manufacturing of the ROTWILD frame.
RESULT:
A ROTWILD carbon frame with unique quality and performance.