Bumper reinforcement and method for manufacturing the same
A technology for bumper reinforcements and manufacturing methods, applied to bumpers, vehicle parts, vehicle safety arrangements, etc., to achieve the effects of increasing reaction force and energy absorption, increasing hardness and strength, and preventing cracking
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[0034] Below, refer to Figure 1~5 The bumper reinforcement of the present invention and its manufacturing method will be described in detail.
[0035] figure 1 The shown bumper reinforcement 1 (semi-finished product before flattening) is obtained by bending a heat-treated aluminum alloy hollow extrusion with a rectangular cross-sectional profile, and includes a central portion 2 parallel to the vehicle body width direction, Left and right end portions 3 bent toward the vehicle body side, and a bent portion 4 connecting the central portion 2 and the end portions 3 . The boundary between the central portion 2 and the curved portion 4 and the boundary between the end portion 3 and the curved portion are indicated by dotted lines. A bumper bracket is provided at the end 3 . Bumper reinforcement 1 is made of T1 quenched and tempered material, which is usually in a slightly hardened state overall due to natural aging. It should be noted that the bending process may be performed...
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