Large-size anti-warping 3D printing flexible bottom plate with easy-to-take part and using method thereof

Abstract

The invention discloses a large-size anti-warping 3D printing flexible bottom plate with an easy-to-take part and a using method thereof. According to the printing bottom plate, a cured flexible colloid is loaded in a container, printing material particles are laid on the surface of the cured flexible colloid, and an additive manufacturing process is carried out on the printing material particles.The whole printing bottom plate does not need to be heated, so that energy conservation and environmental protection are achieved; the surface material of the bottom plate and the printing material are the same material, and the surface particles and the surface material in a molten state have a good bonding effect; after printing is completed, the part is convenient to take; the base plate can be repeatedly repaired and used, and the cost is low; the shape of the base plate can be changed along with the shape of a workpiece 4, so that material waste is avoided to the maximum extent; the bottom plate is formed by compounding a plurality of materials, and the surface material of the bottom plate is a raw material consistent with the printing material so as to meet the requirements of materials with different printing temperatures; and the flexible bottom plate is beneficial to release of internal stress in the printing process, and cracking caused by stress concentration can be effectively prevented.

Description

【Technical field】 [0001] The invention belongs to the technical field of 3D printing, and in particular relates to a 3D printing flexible bottom plate for large-size anti-warping and easy-to-take parts and a use method thereof. 【Background technique】 [0002] Fused deposition modeling (FDM) is a widely used polymer 3D printing technology. In this additive manufacturing technology, the plastic polymer is heated and melted to accumulate and adhere to the predetermined printing position in the form of melt, and the printed product is finally formed by stacking and bonding layer by layer of the melt. [0003] In this process, shrinkage and deformation will occur during the cooling and hardening of the polymer. Due to the different temperatures and uneven shapes of various parts during the printing process, the resulting shrinkage and deformation are asynchronous and uneven. When the shrinkage and deformation inside the printed part When it is greater than the bonding force betw...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a 3D printing flexible bottom plate with large-size anti-warping and easy-to-take parts and its use method; to solve the shrinkage and deformation of large-size parts in the printing process in the prior art larger technical issues

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