Manufacturing method for shape follow-up supporting model for selective laser melting metal additive manufacturing

A selective laser melting and metal additive technology, which is applied in the field of metal additive manufacturing, can solve problems such as large internal stress, affecting the normal use of parts, and shape deviation of parts, so as to reduce thermal stress deformation, reduce temperature gradient, reduce The effect of internal stress
CN106623933AInactive Publication Date: 2017-05-10北京航信增材科技有限公司
6 Cites 10 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
北京航信增材科技有限公司
Publication Date
2017-05-10
Estimated Expiration
Not applicable · inactive patent

Smart Images

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

Abstract

The invention relates to a manufacturing method for a shape follow-up supporting model for selective laser melting metal additive manufacturing. The manufacturing method comprises the following steps of: a, establishing a model of a three-dimensional part by utilizing a three-dimensional drawing software; b, determining the position of a shape follow-up support; c, manufacturing an original shape follow-up supporting model according to the position determined in the step b; d, putting the original shape follow-up supporting model on the position determined in the step b; e, removing a part, superposed with the part, in the original shape follow-up supporting model through Boolean operation to obtain a middle shape follow-up supporting model; and f, pruning away the excessive part of the middle shape follow-up supporting model through a pruning function to obtain a final shape follow-up supporting model.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of metal additive manufacturing, in particular to a method for manufacturing a conformal support model for selective laser melting metal additive manufacturing. Background technique

[0002] Selective laser melting metal additive manufacturing has a similar manufacturing state to metal welding, that is, a large amount of heat is generated during the manufacturing process. When the thermal conductivity of the material is small and / or the shape of the part is not conducive to heat dissipation, a certain temperature gradient will be formed; and due to different heights and different regions in the horizontal direction, they will not melt and solidify at the same time. The two factors of temperature gradient and non-simultaneous melting and solidification will cause a large internal stress. If it is not improved through reasonable methods, the parts will be distorted and deformed, hindering the continuation of the manufac...

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