Method for obtaining properties of metal part based on 3D printing technique

Abstract

The invention belongs to the field of bearing tests for large structural parts made of metal or non-metal materials, and particularly relates to a method for obtaining the properties of a corresponding metal part with an original size according to the properties of a scaled-down non-metal part which is machined and manufactured by using a 3D printing technique. According to the method, basic parameters of the physical and mechanical properties of the scaled-down non-metal part based on 3D printing are tested, and the load bearing state of the scaled-down non-metal part is calculated by adopting a finite element analysis method, so as to deduce the load bearing state of the metal part with the original size. The method has the characteristic and the beneficial effects that the bearing capability of the corresponding metal part can be quickly deduced at low cost within short time according to the scaled-down non-metal part which is machined and manufactured by using the 3D printing technique, thereby effectively shortening the design and manufacturing cycle of product parts and increasing the design success rate.

Description

technical field [0001] The invention belongs to the field of load-bearing testing of large metal or non-metallic material structural parts, and in particular relates to a method for obtaining the performance of corresponding full-scale metal parts from the performance of reduced-scale non-metallic parts processed and manufactured by 3D printing technology. Background technique [0002] 3D printing, also called rapid prototyping technology, additive manufacturing technology, the principle is to decompose the three-dimensional model designed by the computer into several layers of plane slices, and then the 3D printer superimposes the printing materials layer by layer according to the slice graphics, and finally accumulates into a complete object . Different from the "subtractive manufacturing technology" of traditional manufacturing, 3D printing follows the principle of addition, which can directly convert the design in the computer into a model, and directly manufacture parts...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to solve the problem that the performance of the corresponding metal parts cannot be obtained from the non-metallic parts manufactured by 3D printing technology at present, or the performance test of large non-metallic parts is difficult, and a finite element analysis based on part scaling is proposed. A method for obtaining the performance of corresponding metal parts or large non-metal parts by reducing the performance of 3D printed non-metallic parts