Scraper-free selective laser melting additive manufacturing process

A laser selective melting and additive manufacturing technology, applied in manufacturing tools, additive processing, solid material additive processing, etc., can solve the problems of parts printing failure, stuck scraper, etc., to reduce workload, high commercial value, Realize the effect of engineering application

Active Publication Date: 2022-05-06
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

[0004] The process of powder spreading by the scraper has special requirements on the placement angle of the parts. When the forming angle is lower than 45° and formed against the forward direction of the scraper, it is easy to cause the edge of the part to warp and jam the scraper, which eventually leads to the failure of the part to be printed.

Method used

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  • Scraper-free selective laser melting additive manufacturing process
  • Scraper-free selective laser melting additive manufacturing process
  • Scraper-free selective laser melting additive manufacturing process

Examples

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Embodiment

[0028] This embodiment shows a scraperless laser selective melting additive manufacturing process, and parts are prepared through the scraperless laser selective melting preparation structure;

[0029] refer to figure 1 The non-scraper-type laser selective melting preparation structure 100 includes a molding substrate 6 arranged in the molding chamber 5. The top of the molding chamber 6 is correspondingly provided with a laser generator 21 for emitting a laser beam 2, and the molding chamber 6 is also correspondingly provided with a powder feeding Device 3 and powder pressing plate 1;

[0030] The molding steps are:

[0031] 1) Refer to figure 2 , the powder feeding device 3 sends the molding material powder to the molding substrate 6, and then resets;

[0032] 2) Refer to image 3 , the powder pressing plate 1 compacts the molding material powder on the molding substrate, and then resets;

[0033] 3) Refer to Figure 4 , the laser emitter 21 emits the laser beam 2 to c...

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PUM

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Abstract

According to the scraper-free selective laser melting additive manufacturing process, part preparation is conducted through a scraper-free selective laser melting preparation structure; the scraper-free selective laser melting preparation structure comprises a forming base plate arranged in a forming cabin, a laser generator used for emitting laser beams is correspondingly arranged at the top of the forming cabin, and the forming cabin is further correspondingly provided with a powder feeding device and a powder pressing plate. The forming method comprises the steps that (1) a powder feeding device feeds forming material powder to a forming base plate, and then resetting is conducted; (2) compacting the forming material powder on the forming base plate by a powder pressing plate, and then resetting; (3) laser selective melting forming is conducted through light-emitting laser beams of the laser transmitter, and the formed substrate is lowered by one thickness; and (4) the steps (1)-(3) are repeated till part preparation is completed.

Description

technical field [0001] The present invention relates to precision manufacturing technology, in particular to precision molding technology, specifically, it shows a scraperless laser selective melting additive manufacturing process. Background technique [0002] With the development of aerospace and military equipment, higher requirements are put forward for the equipment manufacturing industry. [0003] Laser selective melting additive manufacturing technology is a common precision preparation technology. Traditional laser selective melting additive manufacturing technology uses a scraper to spread powder layer by layer. The printing process can be divided into "scraper powder spreading-laser sintering-forming cylinder drop-powder cylinder Rise-powder", repeat the above steps until the part is printed. [0004] The process of powder spreading by the scraper has special requirements on the placement angle of the parts. When the forming angle is lower than 45° and the shape i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F10/28B22F12/00B22F12/50B22F12/60B28B1/00B29C64/153B33Y10/00B33Y30/00
CPCB22F10/28B22F12/00B22F12/50B22F12/60B29C64/153B28B1/001B33Y10/00B33Y30/00Y02P10/25
Inventor 房立家孙兵兵张强赵海生张学军
Owner 航发优材(镇江)增材制造有限公司
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