STRATEGY OF MILLING CENTER THERMAL ERROR COMPENSATION USING A TRANSFER FUNCTION MODEL AND ITS VALIDATION OUTSIDE OF CALIBRATION RANGE
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F19%3A00339591" target="_blank" >RIV/68407700:21220/19:00339591 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.17973/MMSJ.2019_11_2019065" target="_blank" >https://doi.org/10.17973/MMSJ.2019_11_2019065</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17973/MMSJ.2019_11_2019065" target="_blank" >10.17973/MMSJ.2019_11_2019065</a>
Alternative languages
Result language
angličtina
Original language name
STRATEGY OF MILLING CENTER THERMAL ERROR COMPENSATION USING A TRANSFER FUNCTION MODEL AND ITS VALIDATION OUTSIDE OF CALIBRATION RANGE
Original language description
Achieving high workpiece accuracy is a long-term goal of machine tool designers. There are many causes of workpiece inaccuracy, with thermal errors being the most dominant. Indirect compensation (using predictive models) is a promising strategy to reduce thermal errors without increasing machine tool costs. A modelling approach using thermal transfer functions (a dynamic method with a physical basis) has the potential to deal with the issue. The method does not require any intervention into the machine tool structure and its modelling and calculation speed are suitable for real-time applications with results of up to 80% thermal error reduction. Compensation models for machine tool thermal errors based on transfer functions (TFs) were successfully applied on various kinds of single-purpose machines (milling, turning, floor-type, etc.) and implemented directly into various control systems. The aim of this research is to prove the compensation model applicability within the real machining conditions whereas the most of known thermal errors models end up with offline verification of their approximation quality. The introduced model of a milling centre operates in two machining directions Y and Z and describes thermal errors caused by spindle speed, feed drives and ambient temperature influences. The model is implemented into machine tool control system (Fanuc FS31i-B5). The real-time verification upon finishing cutting operation and conditions different from model calibration is discussed in more detail.
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
20302 - Applied mechanics
Result continuities
Project
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Continuities
N - Vyzkumna aktivita podporovana z neverejnych zdroju
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
MM Science Journal
ISSN
1803-1269
e-ISSN
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Volume of the periodical
2019
Issue of the periodical within the volume
November
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
8
Pages from-to
3156-3163
UT code for WoS article
000532569400022
EID of the result in the Scopus database
2-s2.0-85074985343