Integrated hot stamping structure

Patent metadata

Field	Value
Publication number	US-10486749-B2
Application number	US-201715610328-A
Country	US
Kind code	B2
Filing date	May 31, 2017
Priority date	Dec 13, 2016
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

An integrated hot stamping structure formed by integrally coupling a plurality of blanks and hot stamping-molding the integrated blanks, may include a reinforcing member disposed in a hot stamping area of a predetermined strength reinforcing portion configured for absorbing a shock and reinforcing local rigidity of the strength reinforcing portion.

First claim

What is claimed is:

1. An integrated hot stamping structure formed by integrally coupling a plurality of blanks and hot stamping-molding the plurality of blanks, the integrated hot stamping structure comprising:
a reinforcing member disposed in a hot stamping area of a predetermined strength reinforcing portion wherein the reinforcing member absorbs a shock and reinforces local rigidity of the strength reinforcing portion,
wherein the reinforcing member is inserted into a vertical slit on at least one side of the strength reinforcing portion having a first side and a second side, supports an external plane and an internal plane of the at least one side, and is welded to the external plane,
wherein the reinforcing member includes first and second flange parts which extend to first and second peripheries of the slit, and support the external plane of the at least one side and is welded to the external plane, and an overlap part which is integrally connected to the first and second flange part and supports the internal plane of the at least one side, and
wherein the overlap part is provided as at least two-fold overlap layers.

2. The integrated hot stamping structure of claim 1 , wherein the reinforcing member includes a main reinforcing element of four folds or more, which includes the first and second flange parts, the overlap layer, and a cross section of the strength reinforcing portion.

3. The integrated hot stamping structure of claim 2 , wherein the overlap part has a void between the internal plane of the at least one side and the overlap layer.

4. The integrated hot stamping structure of claim 1 , wherein the overlap layer is provided to be extended externally to the first and second flange parts.

5. The integrated hot stamping structure of claim 4 , wherein the reinforcing member includes a main reinforcing element of four folds or more, which includes the first and second flange parts, the overlap layer, and a cross section of the strength reinforcing portion.

6. The integrated hot stamping structure of claim 5 , wherein the reinforcing member includes a sub-reinforcing portion of three folds or more, which includes an extended part of the overlap layer and the cross section of the strength reinforcing portion.

7. The integrated hot stamping structure of claim 6 , wherein the overlap part has a void between the internal plane of the at least one side and the overlap layer.

8. The integrated hot stamping structure of claim 1 , wherein the reinforcing member is made of a soft steel material.

9. The integrated hot stamping structure of claim 1 ,
wherein the integrated hot stamping structure includes an integrated side panel, and
wherein the strength reinforcing portion includes a lower portion of an external pillar of the side panel.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Kim Sung Won
• Oh Heedae

Classifications

• B21D22/022

  by heating the blank or stamping associated with heat treatment (C21D takes precedence) · CPC title

• B62D25/04 Primary

  Door pillars {; windshield pillars} · CPC title

• B21D53/88 Primary

  other parts for vehicles, e.g. cowlings, mudguards · CPC title

• B21D47/04

  composite sheet metal profiles · CPC title

• B21D39/021

  for panels, e.g. vehicle doors · CPC title