Method for selecting cutting processing timing in manufacturing process of additive materials and subtractive materials

Abstract

The invention discloses a method for selecting the cutting processing timing in the manufacturing process of additive materials and subtractive materials. In the alternately layered manufacturing process of the additive materials and the subtractive materials, whether printing of the next layer is continued or not or the cutting process is performed or not is determined by pre-judging whether thephenomenon of cutting interference or the excessive cutting force is generated or not in the processing process of a part, processing is performed till the end of a processing code of the part is reached, and processing is completed. By the adoption of the method, selection data can be provided for the printing layer number of a three-dimensional printing system of a five-axis additive material CAM system, and a best cutting opportunity is searched for, so that the problem that interference phenomenon is generated easily when a part deep hole is processed by a long tool is solved, damage, caused by the excessive cutting force, to the processing tool and the part is avoided, the surface quality of an inner hole of the deep hole part is improved, and the production and manufacturing efficiency is improved.

Description

technical field [0001] The invention relates to the field of additive and subtractive material manufacturing, in particular to a method for selecting cutting opportunities in the additive and subtractive material manufacturing process. Background technique [0002] For features such as deep holes and inner cavities that need to be machined, if traditional manufacturing methods are used, it is generally necessary to use long tools to cut deep holes and use five-axis degrees of freedom to penetrate into the inner cavity. However, the long tool has the problem of poor cutting rigidity, and the use of five-axis equipment to process the inner cavity is prone to global interference. [0003] Additive manufacturing technology has incomparable advantages over traditional cutting in realizing complex internal structures. However, several mature additive manufacturing technology principles currently have congenital defects in forming accuracy and surface roughness, and cannot reach t...

AI Technical Summary

Problems solved by technology

[0007] In the existing additive and subtractive manufacturing process, the switch time between additive and subtractive manufacturing is generally set in advance. In the actual processing process, unfavorable conditions such as interference during processing and excessive cutting force cannot be avoided.

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