U-FAST 法制备的 WC-Co 切削刀具在刨花板铣削过程中的磨损特性

Wear Characteristics of WC-Co Cutting Tools Obtained by the U-FAST Method During Particleboard Milling.

作者信息

Wachowicz Joanna, Bałaga Zbigniew, Podziewski Piotr

机构信息

Institute of Wood Sciences and Furniture, Department of Mechanical Processing of Wood, Warsaw University of Life Sciences, Nowoursynowska Street, 166, 02-787 Warsaw, Poland.

Faculty of Production Engineering and Materials Technology, Czestochowa University of Technology, Armii Krajowej Street, 19, 42-201 Czestochowa, Poland.

出版信息

Materials (Basel). 2025 Aug 21;18(16):3907. doi: 10.3390/ma18163907.

DOI:10.3390/ma18163907

PMID:40870224

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12387649/

Abstract

This article presents the wear characteristics of the working surface of WC-Co (Tungsten Carbide-Cobalt) tungsten carbide tools obtained using the innovative U-FAST (Upgraded Field-Assisted Sintering Technology) method for particleboard machining. Three groups of tools with a similar chemical composition but differing WC (Tungsten Carbide) grain sizes were tested. Milling tests were carried out on a CNC (Computer Numerical Control) machine tool with the following cutting parameters: spindle rotation at 15,000 rpm, a feed rate of 0.25 mm per tooth, and a feed rate of 3.75. The experimental results show that tools with submicron WC grit sizes of 0.4 µm and 0.8 µm have the longest tool life. Wear of the cutting edges occurred through the removal of the cobalt bond between the tungsten carbide grains, leading to fracture and mechanical removal of the grains from the cutting edge surface. The similarities in the relative wear characteristics of blades with submicron tungsten carbide grain sizes suggest that micro-abrasion and bond phase extrusion may be the main wear mechanisms under the experimental conditions. Nanometric WC grain size significantly influences tool wear through chipping and cracking.

摘要

本文介绍了采用创新的U-FAST（升级版场辅助烧结技术）方法加工刨花板时，WC-Co（碳化钨-钴）硬质合金刀具工作表面的磨损特性。测试了三组化学成分相似但WC（碳化钨）晶粒尺寸不同的刀具。在一台数控机床进行铣削试验，切削参数如下：主轴转速15000转/分钟，每齿进给量0.25毫米，进给速度3.75。实验结果表明，WC粒度为0.4微米和0.8微米的亚微米级刀具具有最长的刀具寿命。切削刃的磨损是通过去除碳化钨晶粒之间的钴粘结剂而发生的，导致晶粒从切削刃表面断裂并机械去除。具有亚微米碳化钨晶粒尺寸的刀片相对磨损特性的相似性表明，微磨损和粘结相挤压可能是实验条件下的主要磨损机制。纳米级WC晶粒尺寸通过崩刃和开裂对刀具磨损有显著影响。