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Laser engineered net shaping method for ternary impeller blade

A laser near-net-shape, ternary impeller technology, applied in the field of laser 3D printing, to achieve the effect of simple process flow, material saving and high processing efficiency

Active Publication Date: 2015-12-16
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problem that auxiliary supports need to be added in the process of laser near-net shaping of ternary impeller blades under the condition of 3-axis open-loop, the present invention proposes a method for laser near-net shaping of ternary impeller blades

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  • Laser engineered net shaping method for ternary impeller blade

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. In the embodiment, the selected laser near-net shape parameters are: laser power 1000W, scanning speed 360mm / min, powder feeding amount 3.6g / min; the powder used is 316 stainless steel powder, which is loaded into the powder feeder after drying In the powder cartridge; the stainless steel substrate used is sanded with sandpaper and wiped with alcohol.

[0018] Specific steps are as follows:

[0019] A, the three-dimensional impeller blade to be formed is established a three-dimensional solid model, and then the three-dimensional model is sliced ​​and layered according to a layer thickness of 0.2mm, and the profile data of each section is obtained. The inclination angle of the three-dimensional impeller blade is 0 ° ~ 65 °, Torsion angle 0°~90°;

[0020] B. According to the impeller blade inclination angle 1 and torsion angle 2, the entire blade is divid...

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Abstract

The invention discloses a laser engineered net shaping method for a ternary impeller blade, and belongs to the technical field of laser 3D printing. A whole impeller blade is segmented according to the inclination angle and torsion angle of the impeller blade, a reasonable preset included angle is set between a laser beam and the perpendicular direction for the segmented impeller blade, and then impeller blade shaping is performed. The ternary impeller blade with the inclination angle of 0-75 degrees and the torsion angle of 0-90 degrees can be shaped on the three-axis open-loop condition. The hardware requirement of the laser engineered net shaping method for a laser engineered net shaping system is low, the equipment complexity and the part machining cost are reduced, no support needs to be added for a three-dimensional model in a three-dimensional modeling process, the technological process is simple, machining efficiency is high, and materials are saved.

Description

technical field [0001] The invention belongs to the technical field of laser 3D printing, and relates to a laser near-net shaping method for ternary impeller blades. Background technique [0002] The three-dimensional impeller blade is the main component of modern power devices such as aircraft engines, steam turbines, and turbocompressors. It is a complex space-torsion thin-walled part with structural characteristics of large inclination and large torsion, and it is difficult to machine. . The traditional three-dimensional impeller blade processing methods mainly include: precision forging, five-axis CNC milling and CNC electrolytic machining. When the above-mentioned processing method is used to process the ternary impeller blades, complex forging molds are often required or a large amount of precious materials are wasted during the processing process, the processing cycle is long, and the processing cost is high. [0003] Laser near-net shape technology is a new type of...

Claims

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Application Information

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IPC IPC(8): B22F3/105B33Y10/00
Inventor 吴东江石龙飞马广义王鑫林郝云波邓德伟
Owner DALIAN UNIV OF TECH