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Manufacturing method of multi-layer bending structure

A manufacturing method and bending technology, applied in the field of mechanical processing, can solve the problems of difficulty in realizing the bending and forming of composite structures of multi-layer materials, low production efficiency, narrow application range, etc., and achieve enhanced mechanical properties, high production efficiency, and reduced forming processes Effect

Active Publication Date: 2020-06-16
CURVEX LIGHTWEIGHT INTELLIGENT MFG RES INST HEZE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a method for manufacturing a multi-layer curved structure, which can solve the problem that the prior art is difficult to realize the bending forming of a multi-layer material composite structure, the production efficiency is low, and the scope of application is narrow. It has the effects of uniform composite layer thickness, good interface composite effect, high composite efficiency, and the ability to manufacture various forms of composite structures.

Method used

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  • Manufacturing method of multi-layer bending structure

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Embodiment 1

[0038] This embodiment provides a method for manufacturing a multi-layer bending structure, which is used for the manufacture of a closed multi-layer metal bending structure. figure 1 The differential lateral extrusion device shown includes an extrusion cylinder 1, a forming die 2, a first extrusion push rod 3 and a second extrusion push rod 4, the first extrusion push rod 3 and the second extrusion push rod The rods 4 are arranged along the axis of the extrusion cylinder 1 and are symmetrically distributed on both sides of the extrusion cylinder 1; the forming die 2 is installed on the side perpendicular to the axis of the extrusion cylinder 1.

[0039] The specific steps are:

[0040] Step (1) Prepare a composite type original blank 5, the composite type original blank 5 adopts a nested structure, including an inner layer of bar material and an outer layer of cylindrical structure surrounding the cylindrical surface of the bar. Among them, the inner layer is material two, and the...

Embodiment 2

[0052] This embodiment provides a manufacturing method of a multilayer bending structure, which is used for the manufacture of an open multilayer metal bending structure. The difference from the first embodiment is that the structure of the composite original blank 5 is different. Specifically:

[0053] Step (1) adopts a multi-layer stacked structure. The longitudinal cross-sectional shape of the composite original blank 5 adopts the first longitudinal section 5-001 of the blank as shown in Fig. 2(a), and the cross section adopts the shape shown in Fig. 2(e). The third cross-section 5-005 of the blank, or the longitudinal cross-sectional shape of the composite original blank 5 adopts the third longitudinal section 5-008 of the blank as shown in Fig. 2(g), and the cross-section adopts the blank as shown in Fig. 2(f) The fourth cross section 5-006. Among them, the third cross section 5-005 of the blank is a three-layer plate stack structure, the middle layer is material two, and th...

Embodiment 3

[0061] This embodiment provides a method for manufacturing a multilayer bending structure, which is used for the manufacture of a closed multilayer metal / metal matrix composite bending structure. The difference from the first embodiment is that the inner layer in the composite original blank 5 The materials are made differently.

[0062] Step (1) The inner layer material in the composite original blank 5 adopts a form in which metal powder and a reinforcing phase are mixed with each other. Specifically, such as Figure 5 As shown, first weigh the metal powder and the reinforcing phase, then mix them in a vacuum environment and fill the mixed powder into the metal pipe sleeve in the vacuum environment; then perform the mixing of the powder in the pipe sleeve Compact and seal both ends of the sleeve to obtain the second longitudinal section 5-002 of the original blank shown in Figure 2(b), which has a head 5-007; the inner layer material is guaranteed by the head 5-007 In a vacuum...

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Abstract

The invention discloses a manufacturing method of a multi-layer bending structure. The problems that in the prior art, bending forming of a multi-layer material composite structure is difficult to realize, the production efficiency is low, and the application range is narrow are solved. The method has the advantages of being uniform in composite layer thickness, good in interface composite effect,high in composite efficiency, and capable of manufacturing various forms of composite structures. According to the manufacturing method of the multi-layer bending structure, the method comprises thefollowing steps that a composite original blank is prepared; the composite original blank is put into an extrusion barrel, and the composite original blank, the extrusion barrel and a forming die areheated; and a first extrusion push rod and a second extrusion push rod are moved to make contact with the composite original blank; and by varying the propulsion speed v1 of the first extrusion push rod and the propulsion speed v2 of the second extrusion push rod, the composite original blank is made to obtain a varying velocity gradient when passing through a forming channel of the forming die, thereby obtaining the variable curvature multi-layer bending structure.

Description

Technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a manufacturing method of a multilayer curved structure. Background technique [0002] The composite structure composed of multi-layer materials can fully explore the advantages of each component material, obtain the optimal configuration of component material resources, and achieve performance requirements that a single material cannot meet. The composite bending structure composed of multilayer materials not only has the advantages of composite materials in performance, but also has more diversity and flexibility in shape and structure, thereby increasing the freedom of product design. Therefore, this type of structure has great application prospects in the fields of petroleum, chemical industry, aviation, aerospace, medical equipment, home appliances, electronics, rail transit, automobiles, and heat exchange equipment, but there are high technical barriers to the manu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C23/22B21C25/02B21C27/02
CPCB21C23/22B21C25/02B21C27/02
Inventor 喻俊荃赵国群朱传宝林建国
Owner CURVEX LIGHTWEIGHT INTELLIGENT MFG RES INST HEZE CO LTD
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