930 Каталог WALTER 2012 Металлорежущий инструмент и оснастка Valenite для станков Стр.C28

Каталог WALTER 2012 Инструмент и оснастка Valenite Стр. C28 0930 ENG Lab2u

11'iunLTEn Valenite Walter Select for indexable inserts for precision boring Step by step to the right indexable insert STEP 5 Select the corner radius r and the depth of cut ap according to these a graphs. Choose the maximum possible corner radius with reference to the relevant length-to-diameter ratio (L/D). The optimal depth of cut ap RMS is around 2/3 of the defined maximum ap value. STEP 6 Now select the feed rate with reference to the specified surface finish of workpiece and the corner radius of insert selected according to step 5. Corner radius indexable insert Roughness RMS values in m max. feed rate in/rev r 0.001 0.002 0.004 0.005 0.006 in RMS RMS RMS RMS RMS 0.008 6 22 52 130 150 0.016 3 12 25 46 72 0.031 2 6 13 23 32 STEP 7 Choose the cutting data from the Technical Section, see page C 192 onwards. C 28