Construction method of aluminium alloy material end milling-cutting force and cutting processing deformation model

Abstract

The invention discloses a construction method of an aluminium alloy material end milling-cutting force and cutting processing deformation model. According to the construction method, a milling-cutting force prediction model on the basis of an average cutting force is established; a milling-cutting force prediction model on the basis of an inclined cutting mechanism is established; on the basis of the established milling-cutting force prediction model on the basis of the average cutting force and the established milling-cutting force prediction model on the basis of the inclined cutting mechanism, single-tooth and multi-tooth transient milling-cutting force predictions are respectively carried out and obtained data is compared with testing data; an aluminum alloy material milling-cutting processing deformation model is established; on the basis of a real number encoded adaptive genetic algorithm, a flatness error of an end milled surface is predicted; the construction method has the important research significance for researching the processing deformation mechanism.

Description

technical field [0001] The invention belongs to the field of machining, and in particular relates to a method for constructing an aluminum alloy material end milling cutting force and cutting deformation model. Background technique [0002] At present, the research on the casting process of cast aluminum alloy materials at home and abroad has been relatively mature, but the research on the mechanical properties of different cast aluminum alloy materials is still limited to the study of static mechanical properties. The research on the dynamic mechanical properties of cast aluminum alloy materials has not yet been carried out. Therefore, it is of great significance to study the dynamic mechanical properties of cast aluminum alloy materials under high-speed cutting conditions for the study of machining deformation mechanism. [0003] According to the characteristics of cast aluminum alloy materials, the main processing method of cast aluminum alloy complex box parts is end mil...

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Problems solved by technology

[0002] At present, the research on the casting process of cast aluminum alloy materials at home and abroad has been relatively mature, but the research on the mechanical properties of different cast aluminum alloy materials is still limited to the study of static mechanical properties. The research on the dynamic mechanical properties of cast aluminum alloy materials has not yet been carried out. Therefore, it is of great significance to study the dynamic mechanical properties of cast aluminum alloy materials under high-speed cutting conditions for the study of machining deformation mechanism.

[0003] According to the characteristics of cast aluminum alloy materials, the main processing method of cast aluminum alloy complex box parts is end milling. When large-scale plane processing is performed, it is affected by the diameter of the end mill tool, although a higher spindle speed is not selected for processing. , the selection of large-diameter end milling tools can still achieve a high cutting speed (>1000m / min) during the cutting process, so it is not suitable for analysis with traditional cutting theory, and it is necessary to establish a research method suitable for high-speed end milling

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