Orthogonal cutting of polyurethane foam

摘要: Abstract This study describes orthogonal cutting experiments performed on rigid polyurethane foams of various densities and cell sizes, to investigate chip formation surface finish. An optical arrangement was used visually record the process, while horizontal vertical forces were measured. A total 239 measurements with tool rake angles 23 ∘ , 45 60 depths cut in range 0.1–3 mm. Continuous modes discontinuous identified. While continuous resulted smooth surfaces, often associated damage form cratering, as a result crack propagation. Results from modelling suggest that transition between types dependent depth cut, angle size. It is concluded, finish primarily size cut. developed one two times diameter lowest roughness.