Page 31 - Automotive Solution for Automotive
P. 31

Reducing Weight


 Evaluating the Physical Properties of CFRPs Using SPMs  Continuous Fiber-Reinforced Thermoplastic CFRP Laminated Board (CFRTP Laminated Board)



 Strengthening  Resin  CF
 material















                                   MPR Image                                       VR Image

 Surface Shape Image  Phase Image  Surface Potential Image

 In addition to 3D observations of a surface shape, an SPM can be used to evaluate the physical properties of a sample.
 In a phase image, the contrast differs between the CFs and the other parts (resin and strengthening material). This indicates that the viscoelasticity
 characteristics differ between the CFs and the other parts. In a surface potential image, differences in electrical characteristics are observed as differences in
 surface potential.
 From joint research with the Structures and Advanced Composite Research Unit, Aeronautical Technology Directorate, Japan Aerospace Exploration Agency (JAXA)


 Evaluating Formability by Observing the Interior of

 Composite Materials
 - Non-Destructive Observation of Fiber Orientation in CFRTP Materials -  VR Image  VR Image (Defect Analysis)

 Due to the need for weight reduction to improve the fuel efficiency of hybrid vehicles, fuel efficient vehicle models, and other environmentally-friendly
 vehicles, engineers are designing aluminum die cast parts with thinner structures and switching from metals or other materials to composite materials.
 Consequently, of the composite materials currently available, demand is growing significantly especially for thermoset carbon fiber reinforced plastics
 (CFRP), which are expected to help achieve energy-savings through higher strength and lower weight. In contrast, use of carbon fiber reinforced
 thermoplastics (CFRTP), which offer superior workability and producibility, is anticipated for hybrid vehicles and fuel efficient models. When using
 composite materials, it is important to analyze the internal voids and the fiber orientation, which can affect the specific strength of products. This   In addition to detecting any voids present between layers in the
 example uses a microfocus X-ray CT system, which enables non-destructive observation inside materials.  CFRTP, the system can also display color that depends on the
                                                                    orientation angle of the internal filler. Formability can be evaluated
 Non-Destructive Internal Observation and Analysis Using Microfocus X-ray CT System  based on detailed information about the internal structure of
                                                                    composite materials.
 Example of Imaging Aluminum Die Castings with Thin Structures                           Sample: Provided by Ehime University





                           VR Image (Fiber Orientation Analysis)



               · Both high output and high image contrast can be achieved using a single system.
               · High resolution observation is possible for composite materials as well as for metal samples.



 MPR Image  VR Image (Defect Analysis)  inspeXio SMX-225CT HR Plus

 Improvements made to the Shimadzu-made microfocus X-ray generator have significantly increased X-ray output levels. Sensitivity characteristics of the state-of-the-art
 high resolution flat panel detector enables both unprecedented high output and high image contrast levels.



 30                                                                                                                  31
   26   27   28   29   30   31   32   33   34   35   36