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Laser additive manufacturing method for multi-support surface structure of cavity thin-wall structural part

A technology of thin-walled structural parts and laser additive materials, which is applied in the direction of additive manufacturing, additive processing, and improvement of process efficiency, and can solve problems such as complex processes, long manufacturing cycles, and inability to prepare

Active Publication Date: 2017-11-07
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the preparation of large cavity structural parts often cannot be prepared by conventional casting and welding processes, and there are defects such as long manufacturing cycle and complicated process.

Method used

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  • Laser additive manufacturing method for multi-support surface structure of cavity thin-wall structural part
  • Laser additive manufacturing method for multi-support surface structure of cavity thin-wall structural part
  • Laser additive manufacturing method for multi-support surface structure of cavity thin-wall structural part

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Embodiment 1

[0037] In this embodiment, the K465 nickel-based alloy multi-cavity aviation complex thin-walled structural part is used as the manufacturing object, and the laser additive manufacturing method with multi-support surface configuration is used to realize the manufacture of the part. Partial structure such as figure 1 As shown in the analysis of the three-dimensional structure of the part, there are multiple cavities and flow channel structures inside the part to be formed. In addition, the part is a thin-walled structure. The realization of the cavity structure and the control of the deformation of the thin-walled structure during the forming process are the key points of the forming process. difficulty. In order to limit the deformation of parts to the greatest extent and ensure the feasibility of adding support structures, the direction with the largest projected area is selected as the stacking direction of additive manufacturing, such as figure 1 Select the Z direction as ...

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Abstract

The invention discloses a laser additive manufacturing method for a multi-support surface structure of a cavity thin-wall structural part, and belongs to the technical field of laser additive manufacturing. The method adopts a laser additive manufacturing technology to form a high-temperature alloy cavity thin-wall structural part; the direction of maximum orthographic projection area of the structural part is selected as an additive manufacturing accumulation direction; in the additive manufacturing process, the lower part of the part structure cavity position is subjected to additive manufacturing; after the lower part of the cavity position is formed, a support structure with the same material is welded in the corresponding position of the formed part; and then, the support structure is used as support, and the additive manufacturing is continuously performed on the outer surface of the support structure until the whole structural part is formed. The method can realize stable and efficient formation of large cavity thin-wall structure.

Description

technical field [0001] The invention relates to the technical field of laser additive manufacturing, in particular to a laser additive manufacturing method for a multi-support surface configuration facing a cavity thin-walled structural member. Background technique [0002] For the manufacture and design of aerospace-oriented structures, the performance of the final product and the quality of parts are important indicators to measure the rationality of the structure. At this stage, for the preparation of many aeronautical structural parts, it is required to use cavity structures as much as possible to achieve weight reduction on the basis of ensuring the performance of the parts. However, conventional casting and welding processes are often unable to prepare large cavity structural parts, and there are defects such as long manufacturing cycle and complicated process. [0003] Laser additive manufacturing technology accumulates and shapes materials layer by layer through com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B22F5/10B33Y10/00
CPCB22F5/10B33Y10/00B22F10/00B22F10/66B22F10/366B22F10/28B22F10/47Y02P10/25
Inventor 王志国赵吉宾赵宇辉李论施凡姚超
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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