Lightweight composite type high strength and plasticity energy absorption automobile protection bumper
The invention provides a lightweight composite type high strength and plasticity energy absorption automobile protection bumper. The lightweight composite type high strength and plasticity energy absorption automobile protection bumper is composed of an energy absorption box, a composite punching bu...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention provides a lightweight composite type high strength and plasticity energy absorption automobile protection bumper. The lightweight composite type high strength and plasticity energy absorption automobile protection bumper is composed of an energy absorption box, a composite punching bumper body, buffer foam, a plastic housing and a fixing bolt, wherein the composite punching bumper body is formed through hot punching after performing point welding and cold punching preforming on different types of steel materials, the composite punching bumper body after being formed is overall in an M shape, the overall section of the composite punching bumper body is in an arc shape, and two bulges are arranged on the surface of the composite punching bumper body. By selecting the raw materials, selecting the hot punching process, and designing the shape, the buffer foam and the like for the composite punching bumper body, the lightweight composite type high strength and plasticity energy absorption automobile |
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