Accuracy enhancement by thermal error minimisation of a turning-milling centre in regard to its multi-functionality

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Accuracy enhancement by thermal error minimisation of a turning-milling centre in regard to its multi-functionality

Popis výsledku v původním jazyce

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, uses a minimum of additional gauges and its modelling and calculation speed are suitable for real-time applications with results of up to 80% thermal error reduction. Advanced compensation models for machine tool thermal errors were successfully applied on various kinds of single-purpose machines (milling, turning, floor-type, etc.) and implemented directly into their control systems. The aim of this research is to reflect modern trends in machine tool usage. Therefore, the research is focused on the applicability of the modelling approach to describe the multi-functionality of a turning-milling centre. The turning-milling centre is adequately capable of handling turning, milling and boring operations. Calibration of a reliable compensation model is a real challenge. Options for reducing modelling and calibration time as well as an approach to include machine tool multi-functionality into the model structure are discussed in more detail. 2019 European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 19th International Conference and Exhibition, EUSPEN 2019. All rights reserved.

Název v anglickém jazyce

Accuracy enhancement by thermal error minimisation of a turning-milling centre in regard to its multi-functionality

Popis výsledku anglicky

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, uses a minimum of additional gauges and its modelling and calculation speed are suitable for real-time applications with results of up to 80% thermal error reduction. Advanced compensation models for machine tool thermal errors were successfully applied on various kinds of single-purpose machines (milling, turning, floor-type, etc.) and implemented directly into their control systems. The aim of this research is to reflect modern trends in machine tool usage. Therefore, the research is focused on the applicability of the modelling approach to describe the multi-functionality of a turning-milling centre. The turning-milling centre is adequately capable of handling turning, milling and boring operations. Calibration of a reliable compensation model is a real challenge. Options for reducing modelling and calibration time as well as an approach to include machine tool multi-functionality into the model structure are discussed in more detail. 2019 European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 19th International Conference and Exhibition, EUSPEN 2019. All rights reserved.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20302 - Applied mechanics

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 19th international conference of the european society for precision engineering and nanotechnology

ISBN

978-0-9957751-4-5

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

580-583

Název nakladatele

euspen

Místo vydání

Cranfield, Bedfordshire

Místo konání akce

Bilbao

Datum konání akce

3. 6. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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