Online layered detection material increasing and decreasing compound manufacturing method

Abstract

The invention belongs to the field of intelligent compound material increasing and decreasing manufacturing, and discloses an online layered detection material increasing and decreasing compound manufacturing method. The online layered detection material increasing and decreasing compound manufacturing method comprises the steps that (1) a three-dimensional model of a to-be-formed part is established and transformed into an STL model, the STL model is sliced, theoretical shape data of each layer are obtained, and a material increasing processing path and a material decreasing processing path of each layer are preset; (2) a plurality of cladding channels are formed according to cladding forming of the material increasing processing path of the current layer, the multiple cladding channels form the current cladding layer, section shape information of the cladding channels is collected in real time while cladding forming is conducted and subjected to data processing, and the shape of thecurrent cladding layer is obtained to assist planning the material increasing and decreasing paths; and (3) the step (2) is repeated, cladding forming of each layer is completed, so that manufacturingof the whole part is completed. According to the online layered detection material increasing and decreasing compound manufacturing method, the problem that past manufacturing and measuring separation have no real-time feedback and have deviation in the manufacturing process is solved, the manufacturing efficiency and manufacturing precision are improved, and the online layered detection materialincreasing and decreasing compound manufacturing method adapts to layered formed material increasing manufacturing.

Description

technical field [0001] The invention belongs to the field of intelligent composite additive and subtractive material manufacturing, and more specifically relates to an online layer-by-layer detection composite additive and subtractive material manufacturing method. Background technique [0002] Additive Manufacturing technology (Additive Manufacturing) is a bottom-up direct rapid accumulation forming technology based on a 3D model. Aerospace, naval vehicles, weapons and equipment, and biomedical fields all have great application prospects. [0003] Wire additive manufacturing technology refers to the use of high-energy beam heat sources, such as arcs, lasers, electron beams, etc., to melt filamentous raw materials, and then pile them up layer by layer according to the set forming path until the forming is completed. Since the diameter of the wire is much larger than the size of the powder, the dimensional error of the wire additive manufacturing will be much larger than tha...

AI Technical Summary

Problems solved by technology

The above two shape measurement schemes are all three-dimensional shape measurement after the completion of additive manufacturing, which increases the process and affects the manufacturing efficiency of composite addition and subtraction materials.

In addition, there are some other detection methods, which usually obtain the overall size data of the part through three-coordinate machine, contour scanner and other equipment after the part is completed, and compare the obtained data with the theoretical CAD model data to obtain error analysis , and then carry out milling and trimming. If the dimensional error is large or there is a problem in a certain link that causes internal defects, it is necessary to partially remove and remanufacture the part, which may even cause the part to be unusable or scrapped.

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