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1. EP3501684 - AUTOMOBILE-BODY PRESS-FORMED COMPONENT AND MANUFACTURING METHOD THEREFOR

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]
Claims

1. A member comprising:

a top sheet;

two facing vertical walls provided on both sides of the top sheet via upper ridgelines;

a top sheet flange extending on an outside of the member via a top sheet ridgeline of the top sheet existing on a side of an end portion of the member;

two vertical wall flanges each extending on the outside of the member via a vertical wall ridgeline of the vertical wall extending on the side of the end portion of the member; and

two floor flanges each of which is adjacent to the vertical wall flange and extends on the outside of the member via a lower ridgeline that extends on an end portion of the vertical wall different from an end portion of the vertical wall on the side of the end portion of the member,

wherein the vertical wall flange and the floor flange adjacent to an end portion of the vertical wall flange are continuous with each other, and

in the end portion of the member, a sum total ΣR of radii of curvature of angles of the vertical walls each between the lower ridgeline and the vertical wall ridgeline and a sum total ∑L of widths of the top sheet and the vertical walls in the end portion of the member have a relation of ∑R/∑L ≤ 0.13.


  2. The member according to claim 1,
wherein the radius of curvature of the angle of the vertical wall between the lower ridgeline and the vertical wall ridgeline is less than or equal to 20 mm.
  3. The member according to claim 1 or 2,
wherein the top sheet flange and the vertical wall flange are continuous.
  4. The member according to any one of claims 1 to 3,
wherein the vertical wall is a triangle, and
the floor flange serves also as the vertical wall flange.
  5. A method for producing a press-molded product, the method being for producing the member according to any one of claims 1 to 4,
the method comprising:

a first step of molding, in a shrink flange manner, at least parts of floor flanges and parts of vertical wall flanges continuous to the floor flanges, in at least two places of a blank; and

a second step of, following the first step, molding, in a stretch flange manner, a top sheet flange and remaining parts of the vertical wall flanges continuous to the top sheet flange, in at least two places between the at least two places of the blank in the first step.