2026-05-01T06:12:13Zhttps://ebiltegia.mondragon.edu/oai/request

oai:ebiltegia.mondragon.edu:20.500.11984/18092026-02-24T09:20:36Zcom_20.500.11984_473col_20.500.11984_478

00925njm 22002777a 4500 dc Alegre García, Raul author ARRAZOLA, PEDRO JOSE author 2020 This study generated novel behavioural data for three engineering steels undergoing a turning process. The materialswere hardened 410, PH13-8Mo and 300M, two stainless steels and one high strength steel respectively. A primary aimwas obtaining lowmachined surface roughness. A surface finish investigation compared tool geometries and tool materials.Multi-response cutting parameter screening was undertaken using a novel trade study and iteration method, where the calculated cut quality was used to identify better feed rates and surface speeds. In addition the sub-surface machined microstructure was examined. Tools with a small nose radius produced the roughest surfaces. A surface roughness below 0.4 μm Ra could be consistently achieved on all three materials using rhombic wiper inserts and a feed rate up to 0.1 mm/rev. PH13-8Mo had the lowest machined surface roughness, as low as 0.11 μm in terms of Ra. In the parameter screening stage a generalised recommendation for good cut quality was a surface speed of at least 120 m/min and a feed rate of 0.088mm/rev. The microstructure examination showed that for all materials under the conditions tested, therewas no evidence ofwhite amorphous layer formation and therewas grain deformation for the 410 material only. 0264-1275 https://katalogoa.mondragon.edu/janium-bin/janium_login_opac.pl?find&ficha_no=159514 https://hdl.handle.net/20.500.11984/1809 Hardened steels Turning Surface finish Machinability Investigating the performance of 410, PH13-8Mo and 300M steelsin a turning process with a focus on surfacefinish