Automotive component manufacturing method and automotive component
AssigneeNippon Steel Corporation
InventorsManabu Wada, Yasushi Suzuki, Noboru Hasegawa
Life of this patent
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Abstract
An automotive component manufacturing method includes a molding process of pressing a portion of a hollow tube formed from a metal material, or a composite material including a metal and a resin, so as to deform the portion of the hollow tube, from a tube outer side toward a tube inner side, to beyond an axial center of the hollow tube, and mold the portion of the hollow tube into a deformed section deformed with a concave profile; and a deformation process of deforming a location having a high level of residual stress in a closed cross-section configured by the deformed section so as to deform the location out-of-plane.
Claims20
An automotive component manufacturing method, comprising:
- pressing a portion of a hollow tube formed from a metal material, or a composite material including a metal and a resin, so as to deform the portion of the hollow tube, from a tube outer side toward a tube inner side, to beyond an axial center of the hollow tube, and mold the portion of the hollow tube into a deformed section deformed with a concave profile;
- and
- deforming mutually opposing portions in a vicinity of ends of an opening of the concave profile in a closed cross-section configured by the deformed section so as to deform the mutually opposing portions out-of-plane in the opening of the concave profile.
An automotive component, comprising:
- a tubular section formed by a metal material or a composite material including a metal and a resin;
- a deformed section including:
- a first deformed section provided at one axial direction side of the tubular section, wherein a portion of a peripheral wall is deformed with respect to the tubular section beyond an axial center of the tubular section from a tube outer side toward a tube inner side so as to mold the portion of the peripheral wall into a concave profile, and
- a second deformed section linking the tubular section to the first deformed section and having a deformation amount that gradually changes from the tubular section toward the first deformed section;
- and
- out-of-plane deformed sections that are each formed with a convex profile or a concave profile at mutually opposing portions in a vicinity of ends of an opening of the concave profile in a closed cross-section of the second deformed section orthogonal to an axial direction of the tubular section.
Dependencies are inferred from the claim text.