Understanding the surface integrity of laser surface engineered tungsten carbide
نویسندگان
چکیده
Abstract The study investigated the effect of fibre laser processing (1060 nm, 240-ns pulse duration) on surface integrity tungsten carbide (WC). induced damage ranged from crack formation, porosity, balling, to spherical pores; severity and presence each were dependent parameters selected. influence fluence (0.05–0.20 J/cm 2 ), frequency (5–100 kHz), feed speed (250–2500 mm/s) hatch distance (0.02–0.06 mm) 2D 3D roughness analysed using Taguchi technique. Fluence, frequency, interaction these most influential factors integrity; this a linear model was generated predict roughness. performed best at moderate medium level with an error between 1 10 %. failed material response as accurately higher fluences percentage errors 15 36 In study, classification system density variable introduced estimate number cracks type within 1-mm area size. Statistical analysis variance (ANOVA) found that (63.49%) (29.38%) had significant independently but not both. minimised 0.149 52.5 kHz. To author’s knowledge, for first time, quantitative formation mechanism brittle materials is proposed (post processing).
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ژورنال
عنوان ژورنال: The International Journal of Advanced Manufacturing Technology
سال: 2021
ISSN: ['1433-3015', '0268-3768']
DOI: https://doi.org/10.1007/s00170-021-07885-8