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A method for preparing metal additive materials with curved surface and thin shell structure

A technology of metal additive and layer structure, which is applied in the direction of additive processing, additive manufacturing, and energy efficiency improvement, to achieve the effects of improved corrosion resistance and fatigue resistance, high operating efficiency, and reduced maintenance costs

Active Publication Date: 2017-12-26
四川天塬增材制造材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it can only be used for materials such as plates, and there is no better way to generally solve the processing problems of structural parts with curved surfaces and thin shells. Only machining methods can be used.

Method used

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  • A method for preparing metal additive materials with curved surface and thin shell structure

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Embodiment Construction

[0023] Attached below figure 1 The specific steps of a metal additive manufacturing method with a curved surface and thin shell structure of the present invention are described in detail.

[0024] A method for preparing a metal additive material with a curved surface thin shell structure, characterized in that the preparation method comprises the following steps:

[0025] 1) According to the surface parameter equation of the curved surface thin shell structure, the characteristic analysis of the surface set is carried out to obtain the scanning path during laser selective melting or laser cladding, and the mobile scanning method is determined to be the partition mobile scanning method. During the forming process of layer-by-layer additive manufacturing In , control the process parameters of the laser to scan the boundary contour of the surface layer and each partition. The shape of each partition is square, rectangular or circular, and the scanning method is skip or continuous...

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Abstract

The invention relates to a metal additive manufacturing method with a thin shell structure on a curved surface, comprising: 1) according to the surface parameter equation of the thin shell structure on the curved surface, analyzing the set characteristics of the curved surface to obtain a laser scanning path, and determining the partition moving scanning mode; 2) according to For the type of curved thin shell structure, it is determined to pre-set temporary reinforcement ribs on the curved thin shell; 3) Perform laser selective melting or laser cladding to obtain curved thin shell forming parts; 4) heat treat curved thin shell forming parts or Precision machine processing. The preparation method has the characteristics of relatively simple process, effective improvement of operation efficiency, deformation of formed parts that can meet the needs of use and design, greatly improved corrosion resistance and fatigue resistance, extended service life, and reduced manufacturing costs.

Description

technical field [0001] The invention relates to the technical field of metal additive manufacturing, in particular to a method for preparing metal additive materials with a curved surface and thin shell structure. Background technique [0002] At present, in the processing of curved plate parts, a new technology of hydroforming has been introduced, that is, liquid is used as the force transmission medium to replace the rigid punch or die to transmit the load, so that the blank is pressed against the die or punch under the action of liquid pressure. Dies for forming sheet metal parts. However, it can only be used for materials such as plates, and there is no better way to generally solve the processing problems of structural parts with curved surfaces and thin shells. Only machining methods can be used. [0003] 3D printing technology is currently a research hotspot, and it is widely used in the processing of metal forming parts. However, in the laser direct manufacturing o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B22F3/24B33Y10/00B33Y50/00B33Y50/02
CPCB22F3/24B33Y10/00B33Y50/00B33Y50/02B22F2003/248B22F10/00B22F10/64B22F10/28B22F10/36B22F10/66B22F10/25B22F12/41B22F10/34B22F10/366B22F10/47B22F10/32Y02P10/25
Inventor 顾德阳
Owner 四川天塬增材制造材料有限公司
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