Study of vertical milling machine layout in terms of rigidity

The paper explores the signs of static elastic deformation when operating milling machines. The research is concerned with the issue of simulation of a machine-device-tool-workpiece system for preliminary evaluation of elastic deformation on treatment in order to eliminate rejects. Linear and angula...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2020-11, Vol.971 (4), p.42005
Main Authors: Khusainov, R M, Sabirov, A R, Ziangirova, E R
Format: Article
Language:English
Subjects:
Cutting force
Cutting parameters
Elastic deformation
Layouts
Manufacturing
Rigidity
Stiffness
Vertical milling machines
Workpieces
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Summary:The paper explores the signs of static elastic deformation when operating milling machines. The research is concerned with the issue of simulation of a machine-device-tool-workpiece system for preliminary evaluation of elastic deformation on treatment in order to eliminate rejects. Linear and angular deformations were defined. Total rigidity of a milling machine depends not only on its inherent stiffness and contact rigidity of its components, but also on geometrical characteristics of manufacturing system layout. These characteristics could be evaluated through axes of rigidity. Errors in surface machining depend on both tool deflection and workpiece distortion. That is why it is necessary to analyze workpiece and tool load-deformation curve separately. Especially that their rigidity is determined by different layouts of bearing system. Main deformation values are defined and vectors of axes of rigidity are created. Using the results of the analysis it is possible to select a cutting pattern or change manufacturing system layout so that the resultant of cutting forces comes closer to highest rigidity axis, which reduces elastic deformations and improves working accuracy.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/971/4/042005