| 摘要 |
PURPOSE:To facilitate deep drawing by setting a value of deviation preventing force of a deviation preventing means of mat clamp at part opposing to part to be subjected to deepest drawing smaller than at other parts. CONSTITUTION:A value of deviation preventing force produced by a deviation preventing means of mat clamp at part opposing to part B to be subjected to deepest drawing of glass fiber mat is set smaller than at other parts and an upper mat mold and a lower mat mold are pressed and processed. Glass fiber mat has larger deviation at peripheral part opposing to part subjected to deepest drawing than at other parts. |
