A device for controlling interlayer temperature based on electron beam fuse additive manufacturing

A technology of additive manufacturing and electron beam, which is applied in the field of additive manufacturing, can solve problems such as the influence of electron beam fuse forming and the difficulty of temperature control between electron beam layers, and achieve good surface forming, time saving, and excellent mechanical properties.
CN109514066BActive Publication Date: 2021-06-29NANJING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Publication Date
2021-06-29

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Abstract

The invention discloses a device for controlling interlayer temperature based on electron beam fuse additive manufacturing, which includes an electron gun, including filaments, cathodes, grids, anodes, focusing coils and deflection coils arranged in sequence in the vertical direction to generate electron beams, and the electron gun Placed in the vacuum chamber of the electron gun; the vacuum chamber of the electron gun is set on the top of the vacuum forming chamber, and is connected and isolated from the vacuum forming chamber through an electronic gas valve. Furnace and circulating cooling device, resistance wire that can realize temperature rise, thermocouple for conduction and temperature measurement, cover plate for forming a closed space and heating control device placed outside the vacuum chamber. The device of the present invention realizes good surface molding of parts and uniformity of microstructure; the device of the present invention does not need to wait for heat dissipation to realize temperature control during the process of additive manufacturing, which saves time and improves production efficiency.
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Description

technical field

[0001] The invention belongs to the technical field of additive manufacturing, and in particular relates to a device for controlling interlayer temperature based on electron beam fuse additive manufacturing. Background technique

[0002] Metal additive manufacturing technology is based on a three-dimensional digital model, using computer-aided technology to realize flat layer slicing and path planning, and using corresponding numerical control technology to realize the technology of metal powder or wire accumulation to obtain complete physical parts. This technology covers many technical fields and has a wide range of applications. It is known as an important symbol of digital manufacturing in the third industrial revolution. The relatively mature technology additive manufacturing technology includes laser selective melting technology (SLM), electron beam selective melting technology (EBSM), electron beam fuse deposition technology (EBFF) and laser stereoform...

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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