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刀具被膜处理与切削液对6061铝合金铣削之影响
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刀具被膜处理与切削液对6061铝合金铣削之影响
The effect of hard coating and cutting fluid in milling aluminum alloy
曹中丞
Chung-Chen Tsao
大华技术学院 自动化工程系
Automation Engineering Department
Tahua Institute of Technology
摘要
在本研究中,主要系以被膜处理碳化物端铣刀与含硫复合硼酸酯切削液对A6061P-T651铝合金材料进行铣削性探讨.同时亦以不同的铣削条件,研究和比较其对铣削力和刀腹磨耗量的影响.实验结果显示,添加含硫复合硼酸酯切削液,的确可以增加被膜处理碳化物端铣刀的刀具寿命约12.5%,且铣削力则可以降低10%左右.此外,相较於未被膜处理且未添加切削液之碳化物端铣刀而言,其可降低平均侧面与平均端面刀腹磨耗量约38.7%与68.7%左右.
至於铣削条件的影响,则在Z方向的平均铣削力为最小,且X,Y与Z方向之平均铣削力均会随著进给速率与主轴转速的增加而增加,但是其变化幅度并不是很大.
关键词:铝合金铣削,切削液,含硫复合硼酸酯
ABSTRACT
The cutting performance of tungsten carbide end mill with hard coating and sulfurous boric acid ester cutting fluid in milling A6061P-T651 aluminum alloy was experimentally investigated. Moreover, the experiments were conducted to investigate and compare the milling force responses and flank wear of various cutting conditions. The experimental results indicate that add sulfurous boric acid ester cutting fluid really can increase tool life of hard coating tungsten carbide end mill 12.5% and decrease milling force 10% about. Besides, the average side and end flank wear can decrease respectively 38.7% and 68.7% compare with uncoated and without cutting fluid tungsten carbide end mill.
In milling conditions, the milling force in Z-direction has the least average value amongst these milling force. Meanwhile, the average value of milling force increase with increase in the feed rates and spindle speed for all of direction, whilst the average values of milling force varying in a narrow range.
Keywords: Milling Aluminum Alloy, Cutting Fluid, Sulfurous Boric Acid Ester