Rare earth-enhanced laser additive manufacturing femnsi micro-nano powder core wire material and preparation method thereof

A powder core wire and laser additive technology are applied in the field of laser additive manufacturing materials and their preparation, rare earth-enhanced FeMnSi micro-nano powder core wires and their preparation fields, and can solve the shape memory function. Loss and other problems, to achieve the effect of enhancing shape memory function, reducing burning loss, and inhibiting function loss
CN108705076BActive Publication Date: 2019-12-03JIANGSU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU UNIV
Publication Date
2019-12-03

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Abstract

A rare earth-enhanced FeMnSi micro-nano powder core wire material for laser additive manufacturing and its preparation method, characterized in that the powder core wire material is made of 28% to 36% of the entire powder core wire material and its components are manganese and silicon Rare earth reinforced micro-nano powder core composed of micron powder and rare earth nanopowder whose mass accounts for 2%~4% of the entire powder core wire material and iron sheet whose mass accounts for 60%~70% of the entire powder core wire material, the sum of each component It is 100%, and its preparation method mainly includes micro-nano powder preparation, skin forming and powder filling, mouth closing and drawing into filaments. Using the FeMnSi micro-nano powder core wire material described in the present invention as a material for laser additive manufacturing has the characteristics of small loss of shape memory function and high forming accuracy, and avoids the low powder utilization rate that exists in the current powder as additive manufacturing materials. At the same time, it also solves the problem of using solid wire as an additive manufacturing material, which requires higher laser energy and is more likely to cause functional loss.
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Description

technical field

[0001] The invention belongs to the technical field of laser additive manufacturing, and relates to a material for laser additive manufacturing and a preparation method thereof, in particular to a rare earth-enhanced FeMnSi micro-nano powder core wire material for laser additive manufacturing and a preparation method thereof. Background technique

[0002] Laser additive manufacturing technology refers to an advanced manufacturing technology that uses laser as an energy source and is based on the discrete-accumulation principle and driven by the three-dimensional data of the part to directly manufacture parts. However, the research and development of materials for laser additive manufacturing is still in its infancy, and there are relatively few types of materials that can be used, which greatly limits the wide application of this advanced manufacturing technology.

[0003] Fe-based shape memory alloys were developed later than Ni-Ti and Cu-based shape memory ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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