PURPOSE: To enable estimation in terms of product type and determination of manufacturing conditions within a range by overlaying prepregs with a metal plate or a laminated plate having a larger area than the prepregs interposed, having them subjected to heat and pressure and pulling the metal plate or the laminated plate with a constant load.
CONSTITUTION: Prepregs are overlaid on and under ends of a metal plate and subjected to heat and pressure, and portions of the metal plate protruding outside are pulled with a constant load while product types of the prepreg are changed to obtain a shift amount. Thus after a slide amount per product type of the prepreg is obtained in advance, the lamination conditions are changed and the slide amount is obtained, so that manufacturing conditions for product types can be within a constant range.
IWAKURA MASAMI
ISHIKAWA YOSHIKAZU
