STRAKA, M., M. MAREŠ, and O. HOREJŠ. The Impact of Key Temperature Measuring Points on Thermal Error Compensation Model Transfer Between Milling Centers of the Same Product Line. MM Science Journal. 2021, 2021 5211-5218. ISSN 1803-1269. DOI 10.17973/MMSJ.2021_11_2021173.
Machine tool thermal errors are an important element in machined workpiece inaccuracies. In the past few decades, thermal errors have been successfully reduced by software compensation techniques such as multiple linear regression analysis, finite element method, neural network and transfer function (TF). A phenomenological approach based on TFs is used for thermal error compensation in this research. This approach respects basic heat transfer mechanisms in the MT structure and requires a minimum of additional gauges. Every MT is unique due to manufacturing inaccuracies in components, assembly processes (different preloads in bolts, deviations in the assembly and seating of components, etc.) or working environment (air-conditioned room or ordinary production hall). The aim of this paper is to investigate thermal error compensation model transfer between machines of the same product line to improve thermal error model prediction. Several milling centers of the same product line were tested with varying non-stationary activities of heat sources from linear axis movements and in varying working environments. The issue of key temperature point selection is considered.
eng
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
MM Science Journal
dc.relation.ispartof
MM Science Journal
dc.subject
Thermal error
eng
dc.subject
Compensation
eng
dc.subject
Machine tool
eng
dc.subject
Key temperature points
eng
dc.subject
Transferability
eng
dc.title
The Impact of Key Temperature Measuring Points on Thermal Error Compensation Model Transfer Between Milling Centers of the Same Product Line