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Front bumper anti-collision beam and processing method thereof

A technology of a front bumper and a processing method, applied in the field of auto parts, can solve the problem of increasing the development cost of inspection tools, welding fixtures and welding tongs, energy consumption and management costs, troublesome welding and assembly processes, and difficult to guarantee the accuracy of parts, etc. problems, to achieve the effect of being beneficial to the body accuracy, structure and material selection optimization, and good part formability

Inactive Publication Date: 2012-03-28
力帆科技(集团)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional car front bumper anti-collision beam is welded by the inner plate and the outer plate, and its cross-sectional shape is as follows Figure 9 As shown, it consists of two rectangles and three straight lines. The inner and outer plates are made of HC450 / 980TR (material properties: yield strength 450-700MPa, tensile strength 980 MPa, elongation after fracture 14), thickness T= 1.5. The forming process is generally cold stamping. However, the drawing performance of this material is poor, resulting in large resilience of the parts after the cold stamping process, and it is difficult to guarantee the precision of the parts, which brings great difficulties to the subsequent welding and assembly processes. Trouble; the inner plate and outer plate are formed separately, which increases the development cost of inspection tools, welding fixtures and welding tongs, energy consumption and management costs, and the tensile strength of the finished product is not good

Method used

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  • Front bumper anti-collision beam and processing method thereof
  • Front bumper anti-collision beam and processing method thereof
  • Front bumper anti-collision beam and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 , figure 2 The shown front bumper anti-collision beam is composed of a load-bearing part 1, an upper support part 2 located at the upper end of the load-bearing part 1 and a lower support part 3 located at the lower end of the load-bearing part 1, and the three constitute the arch of the front bumper anti-collision beam shaped section. The bearing part 1 is a vertical plate, and the upper supporting part 2 and the lower supporting part 3 are both inclined plates, and both are symmetrically arranged on the upper and lower ends of the bearing part 1 . The middle part of the bearing part 1 is recessed inwardly to form a reinforcement part 1a. The reinforcement part 1a is preferably in the shape of a circular arc, which is convenient for stamping and forming, and can also be a square shape. The reinforcement part 1a provided on the bearing part 1 may be located at both ends of the bearing part 1, and the reinforcement part 1a on the bearing part 1 is no...

Embodiment 2

[0041] Such as image 3 , Figure 4 The shown front bumper anti-collision beam is composed of a load-bearing part 1, an upper support part 2 located at the upper end of the load-bearing part 1 and a lower support part 3 located at the lower end of the load-bearing part 1, and the three constitute the arch of the front bumper anti-collision beam shaped section. The bearing part 1 is a vertical plate, and the upper support part 2 and the lower support part 3 are both horizontal plates. The widths of the bearing part 1, the upper support part 2 and the lower support part 3 are equal (such as image 3 ), the length of the upper support part 2 is greater than the length of the lower support part 3 (such as Figure 4 ). The middle part of the carrying part 1 is recessed inwardly to form a reinforcing part 1a, and the reinforcing part 1a is square or arc-shaped. The reinforcement part 1a provided on the bearing part 1 may be located at both ends of the bearing part 1, and the re...

Embodiment 3

[0043] Such as Figure 5 , Figure 6 The shown front bumper anti-collision beam is composed of a bearing part 1 , an upper support part 2 located at the upper end of the bearing part 1 and a lower support part 3 located at the lower end of the bearing part 1 . The bearing part 1 is a stepped folded plate, and the stepped folded plate can be as Figure 6 Two steps as shown, three steps or more. Both the upper support part 2 and the lower support part 3 are horizontal plates. The anti-collision beam of the front bumper is integrally formed by hot stamping of a steel plate with a tensile strength of 400-600Mpa and a thickness of 1.8-2.5mm, and the tensile strength after hot stamping is 1300-1800Mpa.

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Abstract

The invention discloses a front bumper anti-collision beam and a processing method thereof. The front bumper anti-collision beam comprises a bearing section (1), an upper supporting section (2) which is at upper end of the bearing section (1) and a lower supporting section (3) which is at lower end of the bearing section (1), wherein the front bumper anti-collision beam is integrally moulded by a steel plate of which the tensile strength is 400-600 Mpa and the thickness is 1.8-2.5 mm in a hot stamping way; and the hot stamped tensile strength is 1300-1800 Mpa. The processing steps of the anti-collision beam are as follows: baiting, heating, punch forming, shot blasting, trimming and punching. The anti-collision beam saves the material, reduces the cost, simplifies the processing method by optimization of structure and material section and improvement of processing method, and can reach the anti-collision ability which is the same that before being improved.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to an anti-collision beam of an automobile front bumper and a processing method thereof. Background technique [0002] The traditional car front bumper anti-collision beam is welded by the inner plate and the outer plate, and its cross-sectional shape is as follows Figure 9 As shown, it consists of two rectangles and three straight lines. The inner and outer plates are made of HC450 / 980TR (material properties: yield strength 450-700MPa, tensile strength 980 MPa, elongation after fracture 14), thickness T= 1.5. The forming process is generally cold stamping. However, the drawing performance of this material is poor, resulting in large resilience of the parts after the cold stamping process, and it is difficult to guarantee the precision of the parts, which brings great difficulties to the subsequent welding and assembly processes. It is troublesome; the inner plate and the outer ...

Claims

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Application Information

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IPC IPC(8): B60R19/02B60R19/03B21D53/88
Inventor 余桃
Owner 力帆科技(集团)股份有限公司
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