Abstract
This paper presents an analytical model of micro-endmill dynamics in the presence of the setup errors. To accurately capture the rotary inertia and shear deformations of non-slender micro-endmills, Timoshenko-beam equations are used to derive the boundary-value problem for transverse vibrations of rotating micro-endmills with setup errors. The numerical solution of the boundary-value problem is obtained through a spectral-Tchebychev method. The model and the spectral-Tchebychev method are validated by comparing the mode shapes and natural frequencies to those from a commercial finite-elements code. The effectiveness of the model is illustrated by applying it to investigate (1) rotational stability of micro-endmills, (2) the effect of tool geometry on mode shapes and natural frequencies, (3) the influence of setup errors, and (4) the dynamic response of the micro-endmills to harmonic forcing. The model can be used for designing micro tools with preferred dynamic characteristics, as well as for modeling and stability analysis of the micromilling process.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
