Patent ID: 8770639
Filing Date: 2014-07-08
Classification: B21D,B60R,C21D,Y10T

Abstract:
1. A method of making a beam-box crash management system, comprising: forming a first shell from a first sheet metal blank by a hot forming process, the first shell having a high tensile strength beam portion and integrally formed therewith a first low yield strength crash box portion proximate a first end of the beam portion and a second low yield strength crash box portion proximate a second end of the beam portion, the first shell having an open face extending continuously along the beam portion and each of the first and second crash box portions; forming a closing element from a second sheet metal blank, wherein forming the closing element comprises forming a second shell by a hot forming process, the second shell having a high tensile strength beam portion and integrally formed therewith a first low yield strength crash box portion proximate a first end of the beam portion and a second low yield strength crash box portion proximate a second end of the beam portion, the second shell having an open face extending continuously along the beam portion and each of the first and second crash box portions; and fixedly securing the second shell adjacent to the open face of the first shell.