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3D Identification of Face and Flank in Micro-mills for Automatic Measurement of Rake Angle

Nanomanufacturing and Metrology 2020年第2期3卷 151-163页

作者： stefano petro Giovanni Moroni Department of Mechanical Engineering Politecnico di MilanoVia Giuseppe la Masa 120156 MilanItaly

In an Industry 4.0 context,to each object a"digital twin"is associated,which is a virtual counterpart of the object *** the case of a tool,this includes,together with its material and manufacturing information,its solid *** geometry knowledge is fundamental to enable effective tool management,manufacturing verification,and tooling *** for tool management the conventional 2D presetting is sufficient,tooling simulation and tool manufacturing verification require a complete 3D *** is particularly true in the case of the microtools:the process of micro-chip formation is still a research *** the 3D geometry of a tool is well established in the ISO 3002 series of standard,only recently 3D measurement of tools has been made possible by new measuring ***,tool geometry verification requires a lot of human *** paper aims at setting the base for the automatic analysis of point meshes scanned on the whole surface of tools,and in particular *** first step for doing this is the identification of the active surfaces of the tool,that is the face and the flank plus the cutting *** identification of these geometric features is in general possible thanks to their specific characteristics:in particular,the cutting edge is characterized by a high curvature,and it separates the face from the *** paper considers cylindrical micro end-mills as a first example of an approach that can be extended to in principle any kind of *** cylindrical helix characterizing the cutting edge is the key geometry to be considered in the development of the specific *** the tool features(face,flank,and cutting edge)have been separated,of the tool angles,for instance,can be *** first angle to study,the rake angle has been *** approach will be validated on simulated data and on real scans of micro-tools.

关键词： Tool metrology 3D measurement Partitioning Tool angles

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