Method for heat treating an impact beam of automotive vehicle do

Details Method for heat treating an impact beam of automotive vehicle do Method for heat treating an impact beam of automotive vehicle do

1994-07-01

1996-01-30

Silverman, Stanley S.

Metal treatment

Process of modifying or maintaining internal physical...

Producing or treating layered, bonded, welded, or...

148909, 219656, 219662, 219671, C21D 900

Patent

active

054877954

ABSTRACT:
A method and a system for heat treating an impact beam of an automotive vehicle door. Hot rolled steel sheets are prepared having a composition consisting essentially of 0.18% to 0.22% carbon; 1.0 to 1.5% manganese; 0.15 to 0.4% silicon; not more than 0.025% phosphorous; not more than 0.008% nitrogen; not more than 0.0010% sulfur; 0.01 to 0.04 aluminum; 0.001 to 0.003% boron; 0.1 to 0.3% chromium; 0.01 to 0.035% titanium; and the balance essentially iron, roll-forming and welding the steel sheets to make a tube-shaped impact beam. The heat treatment is carried out by high frequency induction heating and air cooling the impact beam, and water cooling the heat treated and air cooled impact beam.

REFERENCES:
patent: 4093839 (1979-06-01), Moliterno et al.
patent: 4740255 (1988-04-01), Manton
patent: 4796946 (1989-01-01), Wilson et al.
patent: 5181974 (1993-01-01), Tanabe et al.
patent: 5192376 (1993-03-01), Tanabe et al.
Japanese Unexamined Patent Publication No. 4-52254 dated Feb. 20, 1992 entitled "A Method for Making for Making a Quenched Steel Tube for Reinforcement of an Automotive Vehicle Door".

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