The invention provides a variable-wall-thickness hollow beam forming process, hollow beam rotary swaging equipment and an anti-collision beam, and belongs to the technical field of vehicle anti-collision beams. In the variable-wall-thickness hollow beam forming process, continuous change control over the wall thickness and the pipe diameter of a metal pipe is achieved through the hammering forging step and the diameter reducing step. And the reducing pipe blank is bent through the bending step, so that the trend of the beam main body is controlled. Through the pre-forming step, the shape of the cross section of the beam body is preset, and the beam body is formed through the hot air bulging forming step. And the specific section shape of the beam main body can be controlled by a mold adopted by hot air expansion. Compared with traditional roll forging, bending, pre-forging and finish forging modes, the technological process is optimized. And the sleeve is sleeved on the transition section with larger bearing force, so that the strength of the transition section can be enhanced. The hollow beam rotary swaging equipment can quickly realize the hammering forging step and the diameter reducing step. The anti-collision beam produced by the variable-wall-thickness hollow beam forming process has higher structural strength and can realize light weight.

    本申请提供了一种变壁厚空心梁成形工艺、空心梁旋锻设备及防撞梁,属于车辆防撞梁技术领域。变壁厚空心梁成形工艺中,通过捶锻步骤和缩径步骤,实现金属管壁厚和管径的连续变化控制。通过弯折步骤对缩径管坯进行折弯,实现梁主体走向的控制。通过预成形步骤,实现对梁主体截面形状的预设,通过热气胀成形步骤实现梁主体的成形。梁主体的具体截面形状可由热气胀所采用的模具进行控制。相对于传统的辊锻、压弯、预锻和终锻的方式,其优化了工艺流程。在承受力较大的过渡段套设套管,可以增加该处的强度。空心梁旋锻设备能够快速实现捶锻步骤和缩径步骤。由上述变壁厚空心梁成形工艺生产出的防撞梁具有较高的结构强度且能够实现轻量化。


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    Title :

    Variable-wall-thickness hollow beam forming process, hollow beam rotary swaging equipment and anti-collision beam


    Additional title:

    一种变壁厚空心梁成形工艺、空心梁旋锻设备及防撞梁


    Contributors:
    YI BIN (author) / GAO LINYU (author) / LI YUANHONG (author) / WANG KAI (author) / HU JIALEI (author) / WANG HONGYAN (author)

    Publication date :

    2024-01-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B23P Sonstige Metallbearbeitung , OTHER WORKING OF METAL / B21J FORGING , Schmieden / B21K MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS , Herstellen von Schmiede- oder Presserzeugnissen aus Metall, z.B. Hufeisen, Nieten, Bolzen oder Rädern / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR




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