Abstract

The article studies the characteristics of mill knives of high-speed steel HS 18-0-2-5 with as well as without МоС and Мо₂С molybdenum carbide coating at plane milling of oak wood. The molybdenum carbide coating was deposited by arc vacuum physical vapor deposition (Arc-PVD). The knife edge wear was determined using a contour measuring system for determining the displacement of the cutting edge along the axis of the cutter wedge sharpness angle (WB_W). Compared to a milling cutter with knives without coating, the molybdenum carbide coating improves the wear resistance of the knife blades and increases the cutting power by almost 40% when milling oak wood samples. The mills with the knife edges coated with the molybdenum carbides exhibited an average reduction in oak wood surface roughness R_a by 1.5–3 µm as compared to the bare tool in the entire range of applied feed rates and milling length. The laboratory tests of the wood-cutting tool covered with MoC coating prove that their durability has increased by 30% against the durability of the bare tool used in milling oak wood.

中文翻译：

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MoC 涂层对橡木铣削钢刀刃口磨损和切削参数的影响

摘要

本文研究了高速钢 HS 18-0-2-5 铣刀在橡木平面铣削中的特性，该铣刀有无 МоС 和 Мо _{2 С 碳化钼涂层。}碳化钼涂层通过电弧真空物理气相沉积 (Arc-PVD) 沉积。刀刃磨损是使用轮廓测量系统确定的，用于确定切削刃沿刀具楔形锐角轴的位移 ( WB _W). 与没有涂层的刀片铣刀相比，碳化钼涂层提高了刀片的耐磨性，并且在铣削橡木样品时切削力提高了近 40%。与裸刀具相比，在整个应用进给率和铣削长度范围内，刀刃涂有碳化钼的铣刀的橡木表面粗糙度R _{a平均降低 1.5–3 µm。}覆盖有 MoC 涂层的木材切削工具的实验室测试证明，它们的耐用性比用于铣削橡木的裸工具的耐用性提高了 30%。