Immersed type ultrasonic surface treatment method for polymer 3D printed product

Abstract

The invention discloses an immersed type ultrasonic surface treatment method for a polymer 3D printed product and relates to a surface treatment technology based on an ultrasonic cavitation effect. The surface quality of the printed product is improved. The immersed type ultrasonic surface treatment method for the polymer 3D printed product is characterized in that the roughness treatment of the surface of the product is carried out on the basis of the ultrasonic cavitation principle. The method includes the steps that an ultrasonic grinding device is designed and manufactured and grinding liquid is prepared. The grinding liquid (5) is added in a grinding pond (1), and heating is performed. The 3D printed product (3) is clamped through a support (6), and the position is adjusted. The product is immersed in the grinding liquid, an ultrasonic generation module (2) is started, shock waves generated by blasting of ultrasonic cavitation bubbles are used for driving abrasive materials in the grinding liquid to perform physical impact on the surface of the product, and the surface of the product can be machined. The immersed type ultrasonic surface treatment method for the polymer 3D printed product has the beneficial effects that the requirements for the size and the shape of the product are low, the material applicability is wide, material fusion is avoided because of low-temperature processing, energy consumption is low, and the method is suitable for machining complicated hook faces and the like.

Description

technical field [0001] The invention belongs to the field of surface processing of polymer 3D printing products. It involves a new surface treatment technology based on ultrasonic cavitation, which is used to reduce the surface texture of polymer 3D printing products and improve the surface quality of products. Background technique [0002] 3D printing technology is a technology based on digital model files, using bondable materials such as polymers or metals, to construct objects by layer-by-layer printing. It is often used to manufacture models in the fields of mold manufacturing and industrial design, and is gradually used in the direct manufacture of some products. The technology has applications in jewelry design, industrial design, architecture, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, military and other fields. However, there are also many problems in 3D pr...

AI Technical Summary

Problems solved by technology

However, there are also many problems in 3D printing technology, which lead to bottlenecks in its promotion and application. One of them is that the surface roughness of the printed products is high, and it is difficult to meet the standards required by industrial use.

The processing principle of 3D printing technology determines that the surface morphology of its products is poor, and 3D printing products generally contain complex curved surfaces, and traditional grinding techniques and equipment are difficult to complete the effective processing of the surface

The shortcomings of this technology are also very obvious. It is difficult to master the grinding accuracy of sandpaper. Moreover, due to the low melting point of polymers, the friction between sandpaper and the contact surface will cause the workpiece to heat up, resulting in processing failure. This method is also difficult to deal with smaller products or structures.

Pearlescent treatment is the effect of the operator holding the nozzle and spraying medium beads at high speed towards the polished object to achieve the polishing effect. Since the whole process needs to hold the nozzle by hand, it needs to manually change the treatment part, and only one can be processed at a time, so this technology is very difficult. Difficult to realize automation and mass production

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