Cutting parameters impacting on tool wear in micro end-milling of tool steel H13


In micro milling process, the quick wear and premature breakage of tools configure a problem that affects not only the process costs but also the manufacturing quality. This work investigates the influence of the cutting parameters on tool wear and surface roughness in a dry machining of a tool steel H13 workpiece (X40CrMoV5-1). Spindle speed was kept constant (27200 rpm) and two feeds per tooth were applied (1.5 and 3.0 μm) as depth of cut (25 and 30 μm), and variating cut length as well. The wear of the tool top area, tool diameter and nose radius were monitored during micro milling tests. Roughness was evaluated by using a Laser Confocal Microscope. The lower level of feed per tooth and depth of cut showed lower roughness, but a higher tool wear. A balance between cutting parameters and cutting length must be considered to ensure micromachining without severe tool wear and preserve microchannel features along its machined surface.

MANSO, Cínthia Soares; ASSIS, Cleiton Lazaro Fazolo; RAMOS, Luciana Wasnievski da Silva de Luca; Del CONTE, Erik Gustavo. Cutting parameters impacting on tool wear in micro end-milling of tool steel H13. In: INTERNATIONAL CONFERENCE ON HIGH SPEED MACHING, 14., 2018, San Sebastian – Spain. Proceedings… 4 p.

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