The invention discloses an automobile front door ring which comprises an automobile A column comprising an A column upper section and an A column lower section, and the A column upper section is provided with a first soft area used for being welded to a roof cross beam; the automobile front door ring also comprises an automobile B column which comprises a B column upper section and a B column lower section; a front threshold, wherein the front and rear ends of the front threshold are respectively fixed with the rear side of the lower part of the column A lower section and the front side of thelower part of the column B lower section; and a rear threshold which is fixed with the rear side of the B column lower section; the A column upper section except the first soft area, the A column lower section, the B column upper section, the front threshold and the rear threshold are all hard areas, and the B column lower section is a second soft area. The invention further discloses a manufacturing method of the automobile front door ring and an automobile comprising the automobile front door ring. According to the automobile front door ring, the manufacturing method of the automobile frontdoor ring and the automobile, the automobile A column and the automobile roof cross beam are not prone to cracking, the front door ring is good in buffering performance and capable of contracting toabsorb energy in the collision process, the deformation of the front door ring can be controlled, the heads of a driver and passengers can be protected, and the safety is good.

    本发明公开一种汽车前门环,包括,包括A柱上段和A柱下段的汽车A柱,A柱上段具有用于与车顶横梁焊接的第一软区;包括B柱上段和B柱下段的汽车B柱;前后两端分别与A柱下段下部的后侧和B柱下段下部的前侧固定的前门槛;与B柱下段的后侧固定的后门槛;A柱上段除去第一软区部分、A柱下段、B柱上段、前门槛和后门槛均为硬区,B柱下段为第二软区。本发明还公开了上述汽车前门环的制造方法和包括上述汽车前门环的汽车。本发明提供的汽车前门环及其制造方法和汽车,汽车A柱与车顶横梁不易发生开裂,前门环缓冲性好,发生撞击时可收缩吸能,并能控制前门环变形,利于保护驾乘人员头部,安全性好。


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    Title :

    Automobile front door ring, manufacturing method thereof and automobile


    Additional title:

    一种汽车前门环及其制造方法和汽车


    Contributors:

    Publication date :

    2021-01-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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