Browse Publications Technical Papers 2008-01-0854
2008-04-14

Advanced High Strength Steels for Chassis Structures 2008-01-0854

Even though the use of AHSS such as DP590 for body structure applications is becoming relatively common among automobile manufacturers, application of AHSS for chassis structures is relatively new. Chassis structures such as frames and sub-frames typically use hot rolled steel grades in the yield strength range of 220 MPa to 250 MPa. For body-on-frame vehicles, the primary load carrying and energy absorbing structure is the frame. Therefore, hot rolled AHSS such as HR DP590 would be key enablers for weight reduction and strength enhancement of these structures. This paper presents a case for developing AHSS grades for chassis structures, some of the challenges for implementing them, and related work done at Ford Motor Company.

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