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Layered high-strength and high-toughness composite material prepared based on wire-powder mixed deposition method

A composite material and high-strength technology, which is applied in the field of preparing high-strength and tough composite materials based on silk powder mixed deposition method, can solve the problems of complex transformation, difficulty in preparing high-strength and tough composite materials, and difficult control, so as to improve strength and break through the contradiction between strength and toughness Effect of confinement, high strength and high plasticity

Inactive Publication Date: 2021-02-09
NANJING UAM INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above is to realize the mixed deposition of silk powder through the modification of equipment, the modification is more complicated and the control is more difficult
At the same time, it is difficult to realize the preparation of high-strength composite materials through simultaneous feeding of wire and powder alone

Method used

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  • Layered high-strength and high-toughness composite material prepared based on wire-powder mixed deposition method
  • Layered high-strength and high-toughness composite material prepared based on wire-powder mixed deposition method
  • Layered high-strength and high-toughness composite material prepared based on wire-powder mixed deposition method

Examples

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Effect test

Embodiment 1

[0048] In this example, high-strength steel / B is prepared by using silk powder mixed deposition method 4 C High-strength and tough composite material, the wire material is high-strength steel ER130S-G, and the powder is B 4 C ceramic powder. The preparation process is as figure 1 As shown, among them, 1 is a high-strength steel wire, 2 is a fused wire additive manufacturing equipment, 3 is a spray gun, 4 is a hollowed-out mold, and 5 is a high-strength and tough composite material mixed and deposited with silk powder, including the following steps:

[0049] 1) Carry out structural design according to the actual part size, and construct a 3D CAD solid model according to the designed part structure, and slice and layer along the forming direction of the model; import the above slices into the computer to generate an implementable path;

[0050] 2) Prepare the mold required for spraying according to the specific situation;

[0051] 3) Pre-treatment work such as grinding and cl...

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Abstract

The invention discloses a layered high-strength and high-toughness composite material prepared based on a wire-powder mixed deposition method. The problem of wire-powder mixed deposition is solved bymeans of wire fuse deposition and powder spraying, and the limitations of complex equipment transformation and difficult process control are avoided. Controllable distribution of hard materials and soft materials can be achieved through spraying of a hollowed-out mold. The contradictory limitation of the strength and toughness of a traditional homogeneous material is broken through, and the high strength and high plasticity of the material are both considered through reasonable distribution of the soft materials and the hard materials. The strength of the material is greatly improved while theplasticity of the material is slightly reduced or the plasticity of the material is not reduced. Through wire-powder mixed deposition, high-efficiency and large-batch preparation of a soft and hard interwoven high-strength and high-toughness material is realized.

Description

technical field [0001] The invention relates to the technical field of preparation of high-strength and tough composite materials, in particular to the preparation of high-strength and tough composite materials based on silk powder mixed deposition method. Background technique [0002] Metal materials, as traditional structural materials, are widely used in infrastructure, aerospace, national defense and other fields. However, with the advancement of technology and the diversification and complexity of material application scenarios, the performance requirements for metal materials continue to increase, especially the strength and toughness of materials. In metal materials, the atoms are arranged regularly, but there are defects in local areas. Under the action of external force, the metal is prone to fracture and failure at the defect position; but under a certain range of stress, defects in the metal such as dislocations, stacking faults, etc. will Slipping in one directi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/10C22C33/00B33Y10/00
CPCB33Y10/00C22C1/1036C22C33/00C22C2204/00
Inventor 彭勇徐俊强周琦王克鸿程远李瑞峰刘江华郭振王小满张考
Owner NANJING UAM INST CO LTD
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