Optimization of technological parameters of CNC milling of plywood depending on surface roughness

IF 2.5 3区农林科学 Q1 FORESTRY

European Journal of Wood and Wood Products Pub Date : 2025-05-31 DOI:10.1007/s00107-025-02272-6

Lukáš Adamčík, Veronika Šugárová, Richard Kminiak, Jarmila Schmidtová, Adrián Banski, Peter Galajda

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引用次数: 0

Abstract

Attaining optimal milling conditions in industrial applications presents a significant challenge. This paper investigates the influence of feed speed and rotational speed in CNC milling on plywood surface quality. Furthermore, it aims to optimize these parameters to minimize surface roughness and associated defects. The roughness parameters (Ra, Rz, Rp and Rv) were quantified using a Keyence VHX-7000 digital microscope. In addition to surface roughness analysis, delamination of veneers and the origins of surface irregularities were microscopically analysed. The polynomial regression models for Ra and Rz were subsequently developed to identify optimal milling conditions. At rotational speed of 20,000 rpm and at feed speed of 10 m min⁻¹ the lowest roughness was achieved. However, very rough fuzzy surface with kinematic traces of the tool, delaminated veneers and torn fibres had occurred at rotational speed of 12,000 rpm and at feed speed of 18 m min⁻¹. These results were supported by investigating the effect of feed per tooth and chip thickness on surface roughness. The highest coefficient of determination was observed between feed per tooth or chip thickness and Rp parameter. The main outcome of this paper was the identification of the most optimal combinations of technological parameters, considering the overall condition of the plywood surface.

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基于表面粗糙度的胶合板数控铣削工艺参数优化

在工业应用中获得最佳的铣削条件是一个重大的挑战。研究了数控铣削时进给速度和转速对胶合板表面质量的影响。此外，它的目的是优化这些参数，以尽量减少表面粗糙度和相关缺陷。粗糙度参数（Ra, Rz， Rp和Rv）用Keyence VHX-7000数码显微镜定量。除了表面粗糙度分析外，还对单板的分层和表面不规则的起源进行了显微分析。随后建立了Ra和Rz的多项式回归模型，以确定最佳铣削条件。当转速为20,000 rpm，进给速度为10 m min - 1时，粗糙度达到最低。然而，在12,000 rpm的转速和18 m / min - 1的进给速度下，出现了非常粗糙的模糊表面，并伴有刀具的运动痕迹，分层单板和撕裂纤维。研究了每齿进给量和切屑厚度对表面粗糙度的影响，支持了这些结果。每齿进给量或切屑厚度与Rp参数之间的决定系数最高。本文的主要成果是在考虑胶合板表面整体状况的情况下，确定最优的工艺参数组合。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

European Journal of Wood and Wood Products 工程技术-材料科学：纸与木材

CiteScore

5.40

自引率

3.80%

发文量

124

审稿时长

6.0 months

期刊介绍： European Journal of Wood and Wood Products reports on original research and new developments in the field of wood and wood products and their biological, chemical, physical as well as mechanical and technological properties, processes and uses. Subjects range from roundwood to wood based products, composite materials and structural applications, with related jointing techniques. Moreover, it deals with wood as a chemical raw material, source of energy as well as with inter-disciplinary aspects of environmental assessment and international markets. European Journal of Wood and Wood Products aims at promoting international scientific communication and transfer of new technologies from research into practice.