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Published in: European Journal of Wood and Wood Products 4/2021

27-04-2021 | Original Article

Root cause and vibration analysis to increase veneer manufacturing process efficiency: a case study on an industrial peeling lathe

Authors: Víctor Tuninetti, Ricardo Alzugaray, Jorge González, Marian Valenzuela, Andrés Jaramillo, Eduardo Diez

Published in: European Journal of Wood and Wood Products | Issue 4/2021

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Abstract

Root cause and vibration analysis is applied to a veneer peeling lathe to increase its efficiency and reduce wood waste. Excessive veneer thickness variations, repetitive damage of machine component and high vibration levels of the lathe are identified as interrelated issues. A root cause analysis is conducted to finally select both design and operating factors, which were then investigated to quantify their effects on the vibratory lathe response and process efficiency. On-site vibration measurements for different operating speeds, cutting tool conditions and log sizes are analyzed from RMS, kurtosis and crest factors for a 95% confidence interval. Based on the statistical significance, the effect of the operating conditions on the vibration energy level and impulsivity of the lathe is obtained. The analysis confirms that (1) the vibration level of the peeling process is significantly affected by the operating speed and cutting tool condition; (2) the signal impulsivity characterized by kurtosis varies with the process speed; and (3) the log size affects process efficiency. In addition, finite element modal analysis is applied to the lathe carriage structure to identify whether a transient resonance occurs during the peeling process. Finally, the study recommends the optimal lathe operating speed found for reducing vibration levels and incomplete log peeling.

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Metadata
Title
Root cause and vibration analysis to increase veneer manufacturing process efficiency: a case study on an industrial peeling lathe
Authors
Víctor Tuninetti
Ricardo Alzugaray
Jorge González
Marian Valenzuela
Andrés Jaramillo
Eduardo Diez
Publication date
27-04-2021
Publisher
Springer Berlin Heidelberg
Published in
European Journal of Wood and Wood Products / Issue 4/2021
Print ISSN: 0018-3768
Electronic ISSN: 1436-736X
DOI
https://doi.org/10.1007/s00107-021-01705-2

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