A side panel inner panel of an automobile
A side wall inner panel and automobile technology, which is applied to vehicle parts, upper structure, upper structure sub-assembly, etc., can solve problems such as cracking and poor toughness, and achieve the effect of increasing toughness, good strength, and protecting passengers
Active Publication Date: 2016-07-20
WUXI LANGXIAN LIGHTWEIGHT TECH CO LTD
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Problems solved by technology
[0003] In the existing technology, the thermoforming material itself has a lot of strength, but its toughness is poor, and if it reaches the material limit after a collision, it will crack
Method used
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Embodiment Construction
[0011] The present invention will be further described below in conjunction with specific drawings.
[0012] Such as Figure 1 ~ Figure 2 As shown: the side wall inner panel of the automobile includes a side wall inner panel body 1, a B-pillar body 2, an A-pillar body 3, a flange surface 4, a hard area 5, a soft area 6, a first transition area 7, a second Transition Zone 8 et al.
[0013] Such as figure 1 As shown, the present invention includes a side wall inner panel body 1, the side wall inner panel body 1 is a ring structure, one side of the ring structure is the B-pillar body 2, and the upper side of the ring structure is the A-pillar body 3; figure 2 As shown, the upper surface of the A-pillar body 3 is a flange surface 4 overlapping with the top cover. The flange surface 4 is obtained by slow cooling in the ultra-high-strength steel hot forming process and has a strength of 500- 700MPa ferrite and pearlite structure, or bainite structure.
[0014] Such as figure 1...
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The invention relates to an automobile side body inner plate which comprises a side body inner plate body. The automobile side body inner plate is characterized in that the upper surface of a column body A is a flange face in lap joint with a top cover, the flange face is a ferrite and perlite structure with the strength ranging from 500 to 700 MPa or a bainite structure with the strength ranging from 500 to 700 MPa, the upper portion of a column body B is a hard area, the lower portion of the column body B is a soft area, and the hard area is connected with the soft area through a first transition area; the side body inner plate body can be a martensitic structure with the strength ranging from 1300 to 15oo MPa through an ultrahigh-strength steel hot forming technology; the lower end of the side body inner plate body and the soft area of the column body B are connected through a second transition area, and the second transition area is in a right angle shape and covers the soft area of the column body B. The flange face in lap joint with the top cover is changed to the soft area, the rigidity is improved, and a partial energy adsorption effect is achieved. The column body B has high strength and can deform controllably.
Description
technical field [0001] The invention relates to a side wall inner panel of an automobile, which belongs to the technical field of vehicle parts. Background technique [0002] Automobile side panel is the key part of automobile body manufacturing, its manufacturing quality directly affects the appearance and performance of the automobile. The inner panel of the side wall is generally a ring structure, and one side of the ring structure is the B-pillar. The main function of the B-pillar is to provide protection in the event of a side collision. Possibly protects passengers, mainly for energy absorption. But at the same time, the side wall inner panel itself needs to ensure a certain strength. [0003] In the prior art, the thermoforming material itself has a lot of strength, but its toughness is poor, and if it reaches the material limit after a collision, it will crack. Contents of the invention [0004] The purpose of the present invention is to overcome the deficiencie...
Claims
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IPC IPC(8): B62D25/02B62D25/04
CPCB62D25/02B62D25/04B62D29/007
Inventor εθ΄’ιζ¬ζεθ£ζ¨δΊιΎ
Owner WUXI LANGXIAN LIGHTWEIGHT TECH CO LTD