System for manufacturing of three dimensional objects

A technology of three-dimensional objects and subsystems, which is applied in the direction of manufacturing tools, additive manufacturing, and improvement of process efficiency. The effect on the lifetime of reliable operation

Inactive Publication Date: 2021-06-15
恩沃切尔沃那维利雅联合股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0040] - Placing the gun body close enough to the area where the deposited layer is formed significantly reduces the possible viewing angles in this area, which complicates the conditions for observing the process of forming the next material deposited layer

Method used

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  • System for manufacturing of three dimensional objects
  • System for manufacturing of three dimensional objects
  • System for manufacturing of three dimensional objects

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Experimental program
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Embodiment Construction

[0063] The present invention is illustrated by the following drawings, wherein the accompanying drawings ( Figure 1-Figure 3 ) of the claimed system have the same numbering.

[0064] A general view of a functional component such as figure 1 Shown, this assembly is the main element of a system for fabricating three-dimensional objects, in a design with a circular cathode whose emitting surface is flat and perpendicular to the axis of the electron beam gun.

[0065] The functional assembly 1 consists of a gas-discharge electron beam gun 2 and a feed guide 3 which together pass the body of the feed guide 5 rigidly fixed coaxially with the base flange The center hole of the base flange 4 of the electron gun is combined in a single assembly unit. The gun body 6 and the entire high-voltage circular insulator 7 are firmly attached to the base flange 4 of the electron beam gun, through which a ring-shaped cathode 8 is mounted between two ring-shaped anode electrodes arranged coaxia...

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Abstract

A system for manufacturing of three dimensional objects by layered deposition comprises: a base substrate (18) for formation of three dimensional objects placed on a supporting plate; a functional assembly (1) comprising a gas-discharge electron beam gun (2), a feedstock guide (3), a cold annular cathode (8) and two annular anode electrodes; a high voltage power supply of the gas-discharge electron beam gun (2); a system of precise positioning of the supporting plate with the base substrate (18); a vacuum tight operation chamber; a vacuum subsystem for creating of necessary vacuum inside said operating chamber; a control system and a magnetic lens (13). Said lens (13) is placed on the underside of the gas-discharge electron beam gun (2) coaxially with it and with the feedstock guide (3), providing the possibility of transformation of a primary hollow electron beam (9) to the shape of a hollow inverted cone after leaving the discharge chamber (12) of the gas-discharge electron beam gun (2). An angle of inclination of the generating surface of said hollow cone can be adjusted by changing the current in the magnetic lens (13).

Description

technical field [0001] The invention relates to the field of metallurgy and in particular to additive manufacturing, ie to systems for manufacturing three-dimensional objects by depositing feed material in layers on a substrate. Background technique [0002] There are methods and apparatus for manufacturing three-dimensional objects (for example, U.S. Pat. The feed material is deposited in layers to form a three-dimensional object. The feed material is then melted there by an energy beam, for example by an electron beam, and then solidifies as it exits the heated zone, thereby forming a solid deposited layer of material. These methods and apparatus share common features, such as the application of a welding-type thermionic axial electron beam gun as an energy source for forming a molten pool on a substrate and melting feed materials. This type of electron beam gun has suitable current-voltage characteristics, such as a relatively high accelerating voltage (60kV and higher)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B22D19/00C22B9/22H01J37/14B23K26/342
CPCB22F3/105B33Y30/00B23K15/0086Y02P10/25H01J37/077H01J37/305H01J2237/061H01J2237/0835H01J2237/30472H01J3/12H01J37/1478H01J2237/152B22F10/25B33Y10/00B33Y50/02B22F10/85B22F12/41B22F12/38B22F10/36B22F10/28
Inventor 德米特罗·科瓦尔丘克伊霍尔·梅尔尼克维塔利·梅尔尼克博里斯·图盖
Owner 恩沃切尔沃那维利雅联合股份公司
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