Influence of different cemented carbides on fabricating periodic micro-nano textures by femtosecond laser processing

Abstract

Periodic micro-nano textures are fabricated by femtosecond laser processing on different cemented carbides. Five different cemented carbides are used in femtosecond laser machining to study the influence of different cemented carbides on fabricating. Surface topography and cross sectional profiles are examined. The results show that the periodic micro-nano textures fabricated on YS8 cemented carbide by femtosecond laser processing are the most continuous, uniform, and orderly, and have the fewest cracks and holes. Flexural strength, grain size, and phase composition of cemented carbide are found to be the primary factors affecting the continuity and uniformity of periodic micro-nano textures that form on cemented carbide. Meanwhile, the influence of different cemented carbides on the texture period, texture depth, and surface roughness are also investigated through the experiments.