Back to results
US 2024/0342784 A1Published application
Press-formed product, rolling bearing, vehicle, machine, press-formed product manufacturing method, rolling bearing manufacturing method, vehicle manufacturing method, and machine manufacturing method
AssigneeNsk Ltd.
InventorsSeiji NAKAMURA, Manabu SEKIGUCHI
Life of this patent
Estimating the term…
Abstract
A press-formed product manufacturing method includes obtaining a first piece (19, 55) by punching a metal material, obtaining a second piece (28, 50) by comprising an edge of a second surface (8) of the first piece (19, 53) sandwiching the first piece (19, 55) between a first die (25) and a second die (26), and trimming a second piece (28) by using press working.
Claims16
A method of manufacturing a press-formed product, comprising:
- obtaining a first piece by punching a metal material, the first piece including a first surface and a second surface, the second surface being a surface on the side opposite to the first surface, the first surface including a roll-over formed on an edge of the first surface by the punching;
- obtaining a second piece by depressing an edge of the second surface of the first piece while sandwiching the first piece between a first die and a second die, the second piece including a first piece having the first surface provided with the roll-over, the second piece having the second surface with the depressed edge;
- and
- trimming the second piece by using press working to remove at least a part of the edge of the first piece.
1 more element
A press-formed product comprising:
- a first surface;
- a second surface which is a surface on the side opposite to the first surface;
- a side surface which connects the first surface and the second surface;
- a first roll-over which is formed on an edge of the first surface as a trace of press working in the vicinity of a corner between the first surface and the side surface;
- and
- a second roll-over which is formed on an edge of the second surface as a trace of another press working in the vicinity of a corner between the second surface and the side surface.
3 more elements
A press-formed product having an annular flat plate shape, comprising:
- a first surface which is provided on one axial side;
- and
- a second surface which is provided on the other axial side,
- wherein the first surface includes each of a first inner peripheral side roll-over provided on an inner peripheral edge, a first outer peripheral side roll-over provided on an outer peripheral edge, and a first flat portion having a flat surface shape and provided between the first inner peripheral side roll-over and the first outer peripheral side roll-over, and
- wherein the second surface includes each of a second inner peripheral side roll-over provided on an inner peripheral edge, a second outer peripheral side roll-over provided on an outer peripheral edge, and a second flat portion having a flat surface shape and provided between the second inner peripheral side roll-over and the second outer peripheral side roll-over.
2 more elements
Dependencies are inferred from the claim text.