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SLM molding system with bidirectional powder laying function

A function and powder spreading technology, which is applied in the field of laser selection and melting SLM molding equipment, can solve the problems of low powder feeding efficiency and low molding efficiency, and achieve the effect of saving resources and improving powder spreading efficiency

Inactive Publication Date: 2019-12-31
ZHAOQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional SLM molding platform has the characteristics of convenient production and installation, but the molding system with this structure can only realize one-way powder feeding, and the powder feeding efficiency is relatively low, which makes the molding efficiency also low

Method used

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  • SLM molding system with bidirectional powder laying function
  • SLM molding system with bidirectional powder laying function
  • SLM molding system with bidirectional powder laying function

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specific Embodiment

[0025] see Figure 1 to Figure 4 , a SLM molding system with two-way powder spreading function, including a body 1, a molding cylinder 2, two powder feeding mechanisms and a scraper 3 reciprocating between the two powder feeding mechanisms are arranged on the body 1, and the molding cylinder 2 is located Between the two powder feeding mechanisms, there is a laser head 4 above the molding cylinder 2. The laser head 4 is used for laser sintering and molding the powder on the molding cylinder 2. A molding platform 5 is installed on the molding cylinder 2 to drive the molding platform 5 up and down. The first lifting mechanism, the scraper 3 is movably arranged on the body 1 through the scraper frame 6, wherein the scraper 3 is arranged at the bottom of the scraper frame 6, and the blade of the scraper 3 is in contact with the plane of the machine body 1, and the scraper 3 is used The powder on the two powder feeding mechanisms is scraped and sent to the molding platform 5, wherei...

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Abstract

The invention relates to an SLM molding system with bidirectional powder laying function. The SLM molding system comprises a machine body, a forming cylinder arranged on the machine body, two powder feeding mechanisms and a scraper reciprocating between the two powder feeding mechanisms, wherein the forming cylinder is located between the two powder feeding mechanisms, a laser head is arranged above the forming cylinder, the forming cylinder is provided with a forming platform and a first lifting mechanism for driving the forming platform to ascend and descend, and the scraper is movably arranged on the machine body through a scraper frame. Through the forming cylinder is arranged between two powder feeding cylinders, the two times of powder spreading operation on the forming platform canbe achieved only by driving the scraper to do reciprocating motion, the powder spreading efficiency is improved, a first powder collecting cylinder and a second powder collecting cylinder play the role of storing remaining powder after filling the powder feeding mechanisms, the remaining powder is conveniently recycled, and resources are saved.

Description

technical field [0001] The invention relates to the technical field of laser selection and melting SLM forming equipment, in particular to an SLM forming system with bidirectional powder spreading function. Background technique [0002] Selective laser melting (SLM) technology is a kind of additive manufacturing, which is an additive manufacturing technology that rapidly melts metal powder in a selected area by laser. [0003] The SLM molding system in the prior art mainly includes a powder feeding box, a powder collecting box, a scraper, a molding platform and a laser. The traditional SLM molding system is one-way powder spreading and sintering with a scraper. During the forming process, the scraper scrapes the powder in the powder feeding box from the origin to the forming platform and spreads it on the forming platform. The laser sinters and melts the powder, and the forming platform drops to a height of layer thickness. Then the scraper scrapes the excess powder to the...

Claims

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Application Information

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IPC IPC(8): B22F3/105B33Y10/00B33Y30/00
CPCB22F3/003B33Y10/00B33Y30/00B22F10/00B22F12/30B22F10/28B22F12/67B22F12/222B22F12/55B22F12/224B22F10/73Y02P10/25
Inventor 李艳梅向丽文蓝哲雯杨志彪
Owner ZHAOQING UNIV
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