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Selective laser melting and composite forming method

A laser selective melting and composite forming technology, applied in laser welding equipment, additive manufacturing, manufacturing tools, etc., can solve the problem of not meeting the needs of model product development, and achieve the effect of avoiding printing, saving manufacturing costs, and improving efficiency

Active Publication Date: 2018-06-15
BEIJING XINGHANG MECHANICAL ELECTRICAL EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3D printing technology can greatly reduce the complexity of product manufacturing and expand the scope of manufacturing. However, the efficiency and cost of laser selective melting for some key structural parts in aerospace and other fields still cannot meet the development needs of model products.

Method used

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  • Selective laser melting and composite forming method
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Embodiment Construction

[0025] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] refer to figure 1 , figure 2 As shown, the laser selective melting composite forming method provided by the present invention comprises the following steps:

[0027] 1) Machining a forming substrate 1 with a screw hole 5 at each of the four corners, respectively processing a φ8mm center positioning hole 3 and an edge positioning hole 4 at the center position and the edge position;

[0028] 2) Positioning through the central positioning hole 3 and the edge positioning hole 4, the forming substrate 1 is installed and fixed on the equipment forming platform through the screw hole 5 with screws;

[0029] 3) typesetting the outer casing nut 8, determining the quantity of the outer casing nut 8 and the typesetting ...

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Abstract

The invention relates to the technical field of 3D printing equipment, in particular to a selective laser melting and composite forming method. According to the selective laser melting and composite forming method, a manufacturing platform tooling is designed by adopting the thinking about the selective laser melting and composite manufacturing of a fine structure on a conventional structural part, thereby achieving the rapid clamping and positioning of a tooling; according to an original machining scheme, a substrate needs to be printed synchronously so as to meet the demand for the relatively low forming efficiency in the follow-up machining-clamping phase, and the average single product printing time is about 2 hours; by adoption of the composite manufacturing thinking, a machining-clamping head is machined in place in advance and mounted on a special tooling, so that the printing of the machining-clamping head can be avoided, the printing time can be greatly shortened, and the efficiency can be improved; and furthermore, a clamping head substrate can be reused, thereby reducing the manufacturing cost to a great extent.

Description

technical field [0001] The invention relates to the technical field of 3D printing equipment, in particular to a laser selective melting composite forming method. Background technique [0002] 3D printing technology is a technology based on the principle of discrete accumulation, integrated computer graphics processing, digital information and control, electromechanical control technology and material technology, and adopts the method of accumulating materials layer by layer to realize the technology of rapid free forming of parts. 3D printing technology can greatly reduce the complexity of product manufacturing and expand the scope of manufacturing. However, the efficiency and cost of laser selective melting for some key structural parts in aerospace and other fields still cannot meet the development needs of model products. Combining 3D printing with traditional manufacturing, it has become a trend to compound complex and fine structures on traditional casting, forging, an...

Claims

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Application Information

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IPC IPC(8): B22F3/105B23K26/342B33Y10/00
CPCB23K26/342B33Y10/00B22F10/00B22F12/30B22F10/28Y02P10/25
Inventor 钱远宏李明亮刘莹莹刘岭武珂
Owner BEIJING XINGHANG MECHANICAL ELECTRICAL EQUIP