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首页> 美国卫生研究院文献>Materials >Experimental Studies on Durability of PVD-Based CrCN/CrN-Coated Cutting Blade of Planer Knives Used in the Pine Wood Planing Process
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Experimental Studies on Durability of PVD-Based CrCN/CrN-Coated Cutting Blade of Planer Knives Used in the Pine Wood Planing Process

机译：松木刨光过程中基于PVD的CrCN / CrN涂层刨刀切割刀片耐久性的实验研究

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摘要

The condition of the cutting tool is one of the most important factors as it directly affects the technological and economic efficiencies of the woodworking process. The large variety of raw materials of wood combined with possible impurities and inclusion of solids puts high demands on planing machines. One of the methods to modify their operational properties is to apply antiwear coating on their working surfaces using vacuum deposition methods, such as physical vapor deposition (PVD). The use of such coatings reduces the adhesion of planing products to the surface of industrial planer knives, reduces the friction between the cutting tool and the workpiece, and limits the penetration of heat into the tool, thereby contributing to extending its effective working life. This study examines the impact of PVD-based CrCN/CrN coating on the operational durability and intensity of wear of planer knives operating in production conditions compared to unmodified knives (typically used in the wood processing industry for pine wood planing). For the unmodified and CrCN/CrN-coated planing blades (before and after processing), detailed analyses were carried out. These analyses included determining the rounding radius and profile along the blade (worn edge displacement), calculating surface texture parameters of the rake face of planer knives, and carrying out visual microscopic analysis of its condition. The results of the experiments indicated an increase in durability of up to 142% for the CrCN/CrN-coated tools. It was also found that the use of PVD-based modified industrial planer knives turned out to be more beneficial in each analyzed area of analysis.
机译：切削工具的状况是最重要的因素之一，因为它直接影响木工工艺的技术和经济效率。木材的种类繁多，加上可能的杂质和固体成分，对刨床提出了很高的要求。改变其操作性能的方法之一是使用真空沉积方法（例如物理气相沉积（PVD））在其工作表面上施加抗磨涂层。这种涂层的使用减少了刨削产品对工业刨刀表面的粘附，减少了切削刀具与工件之间的摩擦，并限制了热量向刀具的渗透，从而有助于延长其有效的工作寿命。这项研究检查了与未改性刀（通常用于木材加工行业中用于松木刨）相比，基于PVD的CrCN / CrN涂层对在生产条件下工作的刨刀的操作耐久性和磨损强度的影响。对于未改性的，CrCN / CrN涂层的刨刀片（加工前后），进行了详细分析。这些分析包括确定沿刀片的倒圆半径和轮廓（磨损的边缘位移），计算刨刀前刀面的表面纹理参数，以及对其状况进行视觉显微镜分析。实验结果表明，涂​​覆CrCN / CrN的工具的耐用性提高了142％。还发现，在每个分析的分析领域，使用基于PVD的改进型工业刨刀被证明是更加有益的。

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