** fz > 0,4 mm: Danger of an open space contact Average chip thickness [hm] – the approach Face milling 1 Select appropriate average chip thickness [hm] for the steel from the table. Select the corrected feed rate value from the table based on the appropriate chip thickness [hm] and depth of cut [ae]. Material Tensile strength hm mm N/mm² for steel ...–800 0,2 for steel 800–1000 0,18 for steel 1000–1200 0,16 for steel 1200–... 0,14 for stainless steel ... –750 0,21 for stainless steel 750–900 0,19 for stainless steel 900–1150 0,17 for stainless steel 1150– ... 0,15 hm mm Corrected feed value fz for hm 0,20 0,40 ** 0,40 ** 0,33 0,28 0,18 0,40 ** 0,40 ** 0,29 0,25 0,16 0,40 ** 0,36 0,26 0,23 0,14 0,36 0,31 0,23 0,20 0,21 0,40 ** 0,40 ** 0,34 0,30 0,19 0,40 ** 0,40 ** 0,31 0,27 0,17 0,40 ** 0,38 0,28 0,24 0,15 0,39 0,34 0,24 0,21 ae = 0,3 x DC 0,4 x DC 0,75 x DC 1 x DC 2 Milling tools with indexable inserts Technical Information
