Aluminum alloy automotive body skeleton

Abstract

The invention discloses an aluminum alloy automotive body skeleton which comprises a frame-type skeleton, wherein the frame-type skeleton comprises a longitudinal beam, a cross beam and an upright beam, which are mutually connected and assembled and are formed by aluminum alloy through extrusion. Compared with the conventional steel structure automotive body, the aluminum alloy automotive body skeleton disclosed by the invention is lower in the weight of the automotive body, so that the complete vehicle kerb mass is reduced, the oil consumption on the dead weight of the automobile is reduced, and the purposes of energy conversation and emission reduction are achieved. Meanwhile, the rigidity of the automotive body is also improved, a load-bearing structure is led to be concentrated on the mutually connected and assembled longitudinal beam, the cross beam and the upright beam, and furthermore, the safety of passengers in the automobile is guaranteed when the automobile is involved in a collision accident.

Description

technical field [0001] The invention relates to the technical field of automobile body structures, in particular to a body frame of an aluminum alloy automobile. Background technique [0002] Traditional automobiles use steel structure body skeletons to obtain the skeleton structure used to carry the automobile body by stamping and forming steel materials, and then performing welding assembly. However, due to the use of steel in the traditional steel body frame, its own weight is relatively heavy, which affects the overall quality of the vehicle and consumes a lot of fuel. At the same time, the stamping forming process has extremely high requirements on the mold, thereby increasing the production cost. On the other hand, after welding, the mechanical properties near the weld seam are severely degraded, resulting in insufficient rigidity of the body frame, and the safety of the occupants cannot be guaranteed in the event of a collision. Contents of the invention [0003] ...

AI Technical Summary

Problems solved by technology

However, due to the use of steel in the traditional steel body frame, its own weight is relatively heavy, which affects the overall quality of the vehicle and consumes a lot of fuel.

At the same time, the stamping process has extremely high requirements on the mold, which increases the production cost

On the other hand, after welding, the mechanical properties near the weld seam are seriously degraded, resulting in insufficient rigidity of the body frame, which cannot guarantee the safety of the occupants in the event of a collision.

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