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The cutting performance of saw blades with textured structures on the rake face, main flank face, and secondary flank face
Ist Teil von
International journal of advanced manufacturing technology, 2024-04, Vol.131 (9-10), p.4915-4933
Ort / Verlag
London: Springer London
Erscheinungsjahr
2024
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
In order to explore the influence of textured sawteeth on saw blade cutting and wear performance, linear micro textures perpendicular to the chip flow direction were fabricated on the rake face, main flank face, and secondary flank face by laser machining, respectively. The cutting tests were carried out on sawing platform with different cutting speeds under lubrication conditions. The cutting forces, noise, temperatures, machined surface quality, and sawtooth wear were investigated. The results indicated that textures fabricated on the secondary flank face can effectively reduce friction with the machined surface and improve the surface quality, and the roughness Ra decreased about 2.5 ~ 12.5% compared with traditional saw blade. The improvement of saw blade cutting performance by machining micro textures on the main flank face was greater than the textures fabricated on the rake face. Due to the synergistic action of textures on different cutting faces, the cutting force, noise, and temperature of saw blades with textures prepared on all cutting surfaces were the lowest. The main wear forms of sawteeth were tip wear, surface adhesion wear, and oxidation wear. Although the derivative cutting phenomenon occurred, the micro textures were not completely filled, which signified that the micro textures still played the role of stored cutting fluids, reduced contact area, and formed lubrication film.