Method of and means for making lightweight, low cost impact resi

Details Method of and means for making lightweight, low cost impact resi Method of and means for making lightweight, low cost impact resi

1975-07-15

1976-08-03

Stallard, W.

Metal treatment

Compositions

Heat treating

148131, 148145, 266115, 266119, 266249, C21D 700, C21D 900

Patent

active

039727440

ABSTRACT:
Bumper bars are shaped from easily workable relatively thin gauge sheet or strip steel into bumper bar shell profile provided with a horizontally elongated body portion and spaced apart integral upper and lower flanges of substantial width extending freely angularly from the body portion, and opposite end portions turned angularly away from the body portion in the same direction as the flanges. The body portion and the flanges are heat and quench hardened throughout their major extent, thereby providing the bar with a beam strength and yield strength to withstand bending stresses from repeated impact forces of a high order of magnitude without significant damage, and the opposite end portions are maintained free from heat and quench hardening as warpage control areas and thereby maintaining the bumper bar free from detrimental warpage.
Apparatus for carrying out the method is provided.

REFERENCES:
patent: 2022532 (1935-11-01), Beans
patent: 2762734 (1956-09-01), Corral
patent: 3589697 (1971-06-01), Hays et al.

Affiliated with

Also associated with

Rating

Method of and means for making lightweight, low cost impact resi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of and means for making lightweight, low cost impact resi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and means for making lightweight, low cost impact resi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1927429