A hollow unit body for metal 3D printing and parts with the unit body

A 3D printing and metal parts technology, which is applied in the direction of slender components, building components, acetabular sockets, etc., can solve the problems of low weight reduction ratio of parts, unreasonable hollow unit structure design, etc., and improve reliability , Avoid stress and performance differences, the effect of high weight reduction ratio
CN106247159BActive Publication Date: 2019-01-18XIAN BRIGHT ADDTIVE TECH CO LTD
6 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN BRIGHT ADDTIVE TECH CO LTD
Publication Date
2019-01-18

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a hollow-out unit body suitable for the metal 3D printing technology. The hollow-out unit body comprises a main structure and an extension structure. The main structure comprises a dodecahedron structure formed by main rib strips serving as the edges. The extension structure comprises extension rib strips extending outwards from the directions of the body diagonals of a dodecahedron. The included angle between each main rib strip and the projection plane is theta, and theta is larger than or equal to 30 degrees but smaller than or equal to 90 degrees. The invention further discloses a metal part comprising the hollow-out unit body. The hollow-out unit body is of a self-supporting structure and suitable for metal 3D printing forming process conditions. Weight reduction of the unit body structure exceeds 90% maximally. A hollow-out weight reduction structure formed by the unit bodies through size changing, direction changing, density changing and other array modes is good in isotropy and high in weight reduction ratio, and the reliability of the part is improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of metal additive manufacturing, and in particular relates to a hollow unit body suitable for metal 3D printing technology, and also relates to parts with the hollow unit body. Background technique

[0002] The hollow weight reduction structure is formed by regular or irregular arrays of hollow unit structures in three-dimensional space. It has the characteristics of obvious weight reduction effect and excellent performance, and can meet the increasingly demanding requirements of aerospace, medical, energy, automotive and other industries. Hollow weight reduction needs.

[0003] Metal 3D printing technology has rapidly developed into a new strategic direction in the field of manufacturing technology with its completely different concepts from traditional removal forming and forced forming. The specific implementation process of metal 3D printing is that the designer first draws the three-dimensional digital...

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
Login to View More