Skrzyniarz Michal, Nowakowski Lukasz, Blasiak Slawomir
Department of Manufacturing Engineering and Metrology, Kielce University of Technology, 25314 Kielce, Poland.
Materials (Basel). 2022 Jan 20;15(3):773. doi: 10.3390/ma15030773.
This article considers the use of additive manufacturing to produce cutting tools for various machining operations, especially turning, milling, and drilling. The right geometry and material of the tool as well as coatings applied on cutting edges are crucial as they improve the life and performance of the tool. The study described here focused on a four-flute end mill made of maraging steel 1.2709 using a Concept Laser M2 Cusing Direct Metal Laser Melting (DMLM) machine. Before the printed tool was first used, it was examined to determine its dimensional and geometric accuracy, surface roughness, and surface structure. The measurement data showed that the tool required machining, e.g., grinding, to improve its geometry because the total runout of the shank and the cutting edge radius were too high, amounting to 120 μm and 217 μm, respectively. The cutting edges were sharpened to obtain a fully functional cutting tool ready to perform milling operations. The study aimed to check the dimensional and geometric accuracy of the 3D printed milling cutter and determine the optimal machining allowance for its finishing.
本文探讨了使用增材制造来生产用于各种加工操作的切削刀具，特别是车削、铣削和钻孔。刀具的正确几何形状、材料以及切削刃上的涂层至关重要，因为它们能提高刀具的使用寿命和性能。这里描述的研究聚焦于一种由马氏体时效钢1.2709制成的四刃立铣刀，使用的是Concept Laser M2 Cusing直接金属激光熔化（DMLM）机器。在首次使用打印出的刀具之前，对其进行了检查，以确定其尺寸和几何精度、表面粗糙度以及表面结构。测量数据表明，该刀具需要进行加工，例如磨削，以改善其几何形状，因为刀柄的总跳动和切削刃半径过高，分别达到了120μm和217μm。对切削刃进行了刃磨，以获得一个可随时进行铣削操作的功能齐全的切削刀具。该研究旨在检查3D打印铣刀的尺寸和几何精度，并确定其精加工的最佳加工余量。
