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US 12,220,737 B2Granted
Method of manufacturing press-formed product and press line
AssigneeNippon Steel Corporation
InventorsRyuichi Nishimura, Toshiya Suzuki
Life of this patent
Estimating the term…
Abstract
A method of manufacturing a press-formed product includes: capturing the sheet thickness of a sheet B; and using a die 6, a punch 7, and a movable mold part capable of moving relative to both the die 6 and punch 7 to press-form the sheet B into a press-formed product. During press-forming, the initial position of the movable mold part relative to the die 6 or punch 7 is controlled depending on the sheet thickness of the sheet B.
Claims16
A method of manufacturing a press-formed product, comprising:
- capturing, via a sheet-thickness capturing device, a sheet thickness of one or more sheets to be pressed separately for each sheet;
- and
- press-forming the sheet into a press-formed product using a die, a punch and a movable mold part, the movable mold part being capable of changing its position relative to both the die and the punch, the movable mold part capable of protruding outwardly from a pressing surface of the die or the pressing surface of the punch, and the die, the punch, and the movable mold part performing the press-forming of the sheet into the press-formed product,
- wherein, the press-forming of the sheet into the press-formed product includes controlling an initial position of the movable mold part relative to the die or the punch using and depending on the captured sheet thickness of the sheet, and
- wherein the sheet-thickness of the sheet is captured prior to performing the press-forming the sheet by the press equipment.
2 more elements
A press line comprising:
- a sheet-thickness capturing device configured to capture a sheet thickness of one or more sheets to be pressed separately for each sheet,
- press equipment including a die, a punch and a movable mold part capable of moving relative to both the punch and the die, the movable mold part capable of protruding outwardly from a pressing surface of the die or the pressing surface of the punch, and the die, the punch, and the movable mold part performing the press-forming of the sheet into the press-formed product;
- and
- a controller configured to control the press equipment,
- wherein the controller is configured, during press-forming of the sheet by the die, the punch and the movable mold part, to control an initial position of the movable mold part relative to the die or the punch using and depending on the sheet thickness of the sheet captured by the sheet-thickness capturing device, and
- wherein the sheet-thickness of the sheet is captured prior to performing the press-forming the sheet by the press equipment.
3 more elements
Dependencies are inferred from the claim text.