A novel mathematical model for predicting self-excited vibrations in micromilling of aluminium 7075

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F25%3A63597439" target="_blank" >RIV/70883521:28110/25:63597439 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2075-4701/15/12/1375" target="_blank" >https://www.mdpi.com/2075-4701/15/12/1375</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/met15121375" target="_blank" >10.3390/met15121375</a>

Result language

angličtina

Original language name

A novel mathematical model for predicting self-excited vibrations in micromilling of aluminium 7075

Original language description

Micro milling of metallic materials presents unique dynamic challenges due to highly nonlinear cutting forces and the susceptibility to self-excited vibrations (chatter). This paper presents a novel mathematical model for chatter prediction in micro milling, based on an enhanced formulation of cutting forces that includes the frictional interaction between the tool’s flank face and the machined surface. The proposed approach enables accurate simulation of the cutting process and prediction of the limiting depth of cut, beyond which chatter occurs. Experimental validation was performed using pneumatic spindle and micro end mills, with chatter detection based on surface inspection via digital microscopy. A strong correlation was observed between the simulated and experimentally determined limiting depths of cut, confirming the model’s predictive capability. This research offers a new methodology for modelling cutting forces and improves the ability to predict chatter in micro milling processes, contributing to the optimization of machining parameters across a wide range of materials.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20301 - Mechanical engineering

Project

—

Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Metals

ISSN

2075-4701

e-ISSN

—

Volume of the periodical

15

Issue of the periodical within the volume

12

Country of publishing house

CH - SWITZERLAND

Number of pages

30

Pages from-to

nestránkováno

UT code for WoS article

001647143600001

EID of the result in the Scopus database

2-s2.0-105025767480