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A process method for forming irregular thin-walled plate parts by laser selective melting

A technology of laser selective melting and process method, which is applied in the field of 3D printing, can solve the problems of special plate parts being pushed down, plate parts warping, cracking, etc., and achieve the effect of no stress deformation

Active Publication Date: 2021-09-07
航发优材(镇江)增材制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It will be a little difficult to produce special irregular plates with laser selective melting technology. If the plates are placed horizontally, the corners will be cracked due to excessive stress during processing. If they are placed vertically, the scraper It is easy to push down the special plate during the powder spreading process, and at the same time, it is easy to cause warping at both ends of the plate

Method used

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  • A process method for forming irregular thin-walled plate parts by laser selective melting
  • A process method for forming irregular thin-walled plate parts by laser selective melting
  • A process method for forming irregular thin-walled plate parts by laser selective melting

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Embodiment Construction

[0026] see Figure 1 to Figure 11 , a process method for forming irregular thin-walled plate parts by laser selective melting, comprising the following steps:

[0027] S1. Choose a suitable placement angle for the plate 1: when the scraper 7 is spreading powder, the plate is required to be in contact with the scraper gradually from point to line. The line contact produces a hard impact, forcing the scraper to stop. Therefore, the plate is placed vertically, and the angle of the plate is adjusted at the same time, so that the angle between the side line near the scraper and the scraper is greater than 10°, which can effectively avoid the phenomenon of knife jamming, such as Figure 10 shown.

[0028] S2. Add multiple ribs 2, and the multiple ribs 2 are parallel to each other. Since the shape of the plates is a special irregular thin-walled shape, they are placed vertically to avoid scraping the plates down when the scraper is spreading powder. Ribs 2 are used to reinforce bo...

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Abstract

The present invention is a process method for forming irregular thin-walled plates by laser selective melting, comprising the following steps: S1, selecting a suitable placement angle for the plates; S2, adding a plurality of ribs; S3, adding a tapered connection structure: The conical connection structure is longitudinally distributed at the position of the rib plate, and the plate and the rib plate are connected as a whole through the conical connection structure. Support, divide the rib plate and the lower triangular entity to form multiple rib slots, divide the lower triangular entity and separate the rib plate, and the rib plate is located in the rib plate slot; S4, add support; S5, after Treatment: After the entire structure is processed by the laser selective melting forming process, the lower triangular solid, rib plate, and hollow support structure are removed, and the tapered connection structure is removed by grinding. The invention prevents stress and deformation of the plate during the forming process.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a process method for laser selective melting to form irregular thin-walled plates. Background technique [0002] With the rapid development of aerospace and military equipment, higher requirements are put forward for the design and production of equipment parts, and advanced manufacturing technology is required for special parts that cannot be manufactured by traditional production and processing methods. The emergence of 3D printing technology has effectively solved this technical problem and can realize the rapid prototyping of complex structures. Laser selective melting technology is the most widely used processing technology in the field of 3D printing. It will be a little difficult to produce special irregular plates with laser selective melting technology. If the plates are placed horizontally, the corners will be cracked due to excessive stress during processing. If they are pl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/153B33Y10/00
CPCB33Y10/00B29C64/153
Inventor 房立家孙兵兵张强张学军
Owner 航发优材(镇江)增材制造有限公司