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Powder materials rapid forming system

A powder material, fast technology, applied in the field of powder material rapid prototyping system, can solve the problems of increasing the cost of powder material rapid prototyping, protecting gas affecting personal safety, affecting the quality of formed parts, etc., to facilitate rapid prototyping and eliminate spheroidization function, efficiency-enhancing effect

Inactive Publication Date: 2006-09-06
武汉华科三维科技有限公司
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Problems solved by technology

The use of protective gas has the following disadvantages: the first is to increase the cost of rapid prototyping of powder materials; the second is that the quality of the formed parts is affected by the protection gas remaining in the formed parts; the third is that the protection gas may be affected by leakage. Personal safety; the fourth is the discharge of protective gases (argon, helium) into the atmosphere, causing environmental pollution

Method used

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  • Powder materials rapid forming system
  • Powder materials rapid forming system
  • Powder materials rapid forming system

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Embodiment Construction

[0010] The present invention will be described in further detail below in conjunction with accompanying drawing and example.

[0011] like figure 1 As shown, the system of the present invention consists of a processing space and two or more laser scanning devices. Wherein, the processing space 7 is composed of left and right powder falling devices 1, 4, a protective mirror group 8, a roller (or scraper) 14, a working chamber 9, a working cylinder 11 and a working cylinder piston 12.

[0012] The laser scanning device consists of a scanning head and a laser generator connected to it. like figure 2 As shown, the scanning heads 2 , 3 , 5 , 6 are equidistantly distributed above the working cylinder 11 . The scanning head achieves focusing, and the laser scanning device realizes selective laser rapid prototyping of powder materials.

[0013] In order to make them compact, the installation size of the scanning head and the size of the scanning field are arranged equidistantly a...

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Abstract

The invention discloses a powder material quick molding system which comprises a processing space and a laser scanning device. Wherein, the processing space is formed by left and right powder feeding devices, a protective glass, a roller or a scrape plate, a working chamber, a working cylinder and a working cylinder piston. Said system comprises at least two laser scanning devices and the protective glasses in same number, while the laser scanning devices are distantly arranged; said working chamber is vacuum working chamber which has gas sealing at the connection with other elements inside the processing space. The invention combines the CAD, technique, CNC technique, laser processing, and material technique, which can overcome the defects of present powder material quick molding device. The invention has two characters as multiple-laser scanning and the power material quick molding in vacuum. The invention can improve the molding quality and efficiency.

Description

technical field [0001] The invention belongs to the field of rapid manufacturing, in particular to a powder material rapid prototyping system. Background technique [0002] At present, the materials suitable for rapid prototyping of powder materials include polymers, ceramics, metals and composite materials. However, the current devices using powder material rapid prototyping technology generally use a single laser single scanning device, see "a rapid prototyping system for direct manufacturing of metal parts" (application number: CN200410061364.7 publication date: 2005.06.29). Although they are capable of complex forming processes, their forming efficiency is relatively low. In addition, the existing rapid prototyping devices for powder materials generally pass protective gas, such as nitrogen, argon, etc., during the forming process. The use of protective gas has the following disadvantages: the first is to increase the cost of rapid prototyping of powder materials; the ...

Claims

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Application Information

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IPC IPC(8): B23K26/06B23K26/12B22F3/105B28B1/00C04B35/64B29C67/04
CPCY02P10/25
Inventor 史玉升黄树槐陈国清章文献
Owner 武汉华科三维科技有限公司
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