Precision surface characterization for finish cylindrical milling with dynamic tool displacements model
PBN-AR
Instytucja
Wydział Mechaniczny (Politechnika Opolska)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
ISSN
0141-6359
EISSN
Wydawca
ELSEVIER SCIENCE INC
DOI
URL
Rok publikacji
2016
Numer zeszytu
Strony od-do
158-165
Numer tomu
46
Liczba arkuszy
0,92
Autorzy
(liczba autorów: 6)
Pozostali autorzy
+ 5
Autorzy przekładu
(liczba autorów przekładu: 0)
Słowa kluczowe
EN
finish milling
tool displacement
run out
surface roughness
laser vibrometry
Streszczenia
Język
Treść
In this work a new approach to surface roughness parameters estimation during finish cylindrical endmilling is presented. The proposed model includes the influence of cutting parameters, the tool’s static runout and dynamic phenomena related to instantaneous tool deflections. The modeling procedure consistsof two parts. In the first stage, tool working part instantaneous displacements are estimated using ananalytical model which considers tool dynamic deflections and static errors of the machine – tool-holder– tool system. The obtained height of the tool’s displacement envelope is then applied in the secondstage to the calculation of surface roughness parameters. These calculations assume that in the cylindricalmilling process, two different mechanisms of surface profile formation exist. Which mechanism is presentis dependent on the feed per tooth and the maximum height of the tool’s displacement envelope. Thedeveloped model is validated during cylindrical milling of hardened hot-work tool steel 55NiCrMoV6using a stylus profiler and scanning laser vibrometer over a range of cutting parameters. The surfaceroughness values predicted by the developed model are in good agreement with measured values. It isfound that the employment of a model which includes only the effect of static displacements gives aninferior estimation of surface roughness compared to the model incorporating dynamic tool deflections.
Inne
System-identifier
27352
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