Aiming at the problem of tool wear and breakage, the low accuracy of machined surface duringthe milling process of automobile panel splicing dies, the cutting force modeling of micro element is carriedout. The cutting...Aiming at the problem of tool wear and breakage, the low accuracy of machined surface duringthe milling process of automobile panel splicing dies, the cutting force modeling of micro element is carriedout. The cutting chip thickness of each cutting cycle is built as a function of the cutting angle and the shearforce according to the different hardness of machining materials, and a plow force model are obtained underng angles. By introducing a single degree of freedom italic collision model, the Hopkinsontest is used to obtain the elastic deformation δ of the tool workpiece impact under different spindle speeds,sults showforce on the tool in the transition area is obtained. Combining above models together,of milling force in the transition area can be obtained. Experiment and simulation reconslstendirections is studied. Fromcythto prove the accuracy of the model. The surface quality under different feede analysis results of machined surface quality, surfacedifference between workpieces, it is concluded that better surface quality can be obtaineness and heightness and low hardness workpiece. The results provide theoretical support for the optimizationing process in the splicing die of the automobile panel highof the milling process in the splicing die of the automobile panel.展开更多
文摘Aiming at the problem of tool wear and breakage, the low accuracy of machined surface duringthe milling process of automobile panel splicing dies, the cutting force modeling of micro element is carriedout. The cutting chip thickness of each cutting cycle is built as a function of the cutting angle and the shearforce according to the different hardness of machining materials, and a plow force model are obtained underng angles. By introducing a single degree of freedom italic collision model, the Hopkinsontest is used to obtain the elastic deformation δ of the tool workpiece impact under different spindle speeds,sults showforce on the tool in the transition area is obtained. Combining above models together,of milling force in the transition area can be obtained. Experiment and simulation reconslstendirections is studied. Fromcythto prove the accuracy of the model. The surface quality under different feede analysis results of machined surface quality, surfacedifference between workpieces, it is concluded that better surface quality can be obtaineness and heightness and low hardness workpiece. The results provide theoretical support for the optimizationing process in the splicing die of the automobile panel highof the milling process in the splicing die of the automobile panel.
