Research on preparation of HFCVD diamond coated milling cutter and stone cutting performance

3rd China-Romania Science and Technology Seminar

自然科学;工业技术

Lu, F.^1 ; Zha, L.^1 ; Wang, X.^1

Shenyang Jianzhu University, College of Mechanical Engineering, Shenyang

110000, China^1

关键词: Cemented carbides;    Chemical vapour deposition;    Cutting performance;    Diamond coating;    Diamond layers;    Different carbon sources;    Grain orientation;    Nano-crystalline diamonds;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/399/1/012036/pdf
DOI  :  10.1088/1757-899X/399/1/012036

来源: IOP

【 摘 要 】

The study is on the properties of diamond coating prepared on milling cutter and its effect on the cutting performance of stone. The method of hot filament chemical vapour deposition HFCVD was used to deposit diamond film coatings on the surface of the cemented carbide milling cutter. The surface morphology, composition and grain orientation of the diamond films on the cemented carbide milling cutter were analysed by using scanning electron microscopy, Raman spectroscopy and X-ray diffraction; the prepared diamond coated milling cutter was used to process the stone experiment, and the cutting performance of the diamond layer cutter with different carbon sources was analysed. The prepared diamond-coated cutter has a small diamond grain size on the surface, typicallycrystal face disappears, and the grain orientation presents nano-crystalline diamond. Compared to the uncoated cutter, the surface roughness decreases. After coating, the diamond coating on the surface of the cutter did not show obvious shedding, and the amount of wear on the back face of the uncoated cutter was consistent.