Toyota jidosha kabushiki kaisha (20250146092). METHOD FOR MANUFACTURING STEEL PLATE COMPONENT AND MANUFACTURING APPARATUS
METHOD FOR MANUFACTURING STEEL PLATE COMPONENT AND MANUFACTURING APPARATUS
Organization Name
toyota jidosha kabushiki kaisha
Inventor(s)
Tomoaki Ihara of Toyota-shi JP
Motoyuki Shibata of Nisshin-shi JP
METHOD FOR MANUFACTURING STEEL PLATE COMPONENT AND MANUFACTURING APPARATUS
This abstract first appeared for US patent application 20250146092 titled 'METHOD FOR MANUFACTURING STEEL PLATE COMPONENT AND MANUFACTURING APPARATUS
Original Abstract Submitted
a method or the like for manufacturing a steel plate component, capable of maintaining the overall strength of the component and preventing a delayed fracture from occurring at the same time is provided. a method for manufacturing a steel plate component is characterized in that the steel plate component is locally heated by a heating electrode, the heating electrode being disposed on one side of the steel plate component, and spaced from and directly opposed to a punched part of the steel plate. the steel plate component is a high-strength steel plate having a tensile strength class of 780 mpa or higher. a heating temperature is 500 to 830� c. the steel plate component is locally heated by high-frequency induction for a short time period of 10 seconds or shorter. the heating electrode is a coil larger than the punched part and has two turns or more for the punched part.