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After-treatment equipment for improving surface roughness and strength of 3D printed stainless steel workpiece

A technology of workpiece surface, 3D printing, applied in the direction of additive processing, etc., can solve the problem of non-planar surface shape, achieve the effect of high surface strength, reduce voids, and improve surface roughness

Active Publication Date: 2018-12-04
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, for 3D printing stainless steel workpieces, there are still few post-processing methods to effectively improve the surface roughness and strength, especially for the non-planar surface shape of 3D printed stainless steel workpieces.

Method used

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  • After-treatment equipment for improving surface roughness and strength of 3D printed stainless steel workpiece

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Experimental program
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Embodiment Construction

[0026] see figure 1 According to the post-processing equipment for improving the surface roughness and strength of 3D printing stainless steel workpieces provided by the present invention, it includes a base 1, an ultrasonic power supply power assembly 2, a workpiece fixing device 3, an impact device 4 and a roughness testing device 5, the workpiece The fixing device 3 includes a positioning device 31 and a fastening device 32, the processed workpiece 6 is placed on the workpiece fixing device 3, and the impact device 4 includes an impact platform 41, an impact pressure head 42, a force applying component 43 and a moving mechanism 44 , the impact platform 41 includes at least two impact indenters 42, and each of the impact indenters 42 is respectively connected to a separate force applying assembly 43 and a separate ultrasonic power supply assembly 2 , the force applying component 43 has a pressure sensor and a locking device.

[0027] The impact head 42 can freely rotate on ...

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Abstract

In a food machine, adopting 3D printed stainless steel workpiece is well required in the market, and therefore after-treatment equipment for improving the surface roughness and the strength of the 3Dprinted stainless steel workpiece is very important. The after-treatment equipment for improving the surface roughness and the strength of the 3D printed stainless steel workpiece comprises a base, ultrasonic power source power assemblies, a workpiece fixing device, an impact device and a roughness testing device. The workpiece fixing device comprises a locating device and a fastening device. Thetreated workpiece is arranged on the workpiece fixing device. The impact device comprises an impact platform, impact pressing heads, force application assemblies and moving mechanisms. The impact platform at least comprises two impact pressing heads. Each impact pressing head is connected with one independent force application assembly and one independent ultrasonic power source power assembly. Apressure sensor and a position clamping device are arranged in each force application assembly. According to the equipment, the ultrasonic impact manner is adopted for carrying out after-treatment onthe 3D printed stainless steel workpiece, the advantage of additional material manufacturing of the 3D printed stainless steel workpiece is further enhanced, and the equipment has a remarkable technology advantage and an application prospect.

Description

technical field [0001] The invention relates to surface treatment equipment for 3D printing metal workpieces, and more particularly to a post-processing equipment for improving the surface roughness and strength of 3D printing stainless steel workpieces. Background technique [0002] Stainless steel is widely used in food machinery because of its excellent corrosion resistance and high safety to the human body. The unique one-piece molding processing feature of 3D printing technology reduces the problem of connection and coordination of mechanical parts, which is conducive to the protection of food safety. However, the molding size of 3D printed stainless steel workpieces has the characteristics of high precision, and the dimensional allowance for later machining is very small, and machining often has adverse effects such as tensile stress on the surface of 3D printed stainless steel workpieces. On the other hand, 3D printed stainless steel workpieces There is also a hidden...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/24C21D7/04B33Y40/00
CPCB22F3/24B33Y40/00C21D7/04
Inventor 田斌杜秋月刘宝辉
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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