401 Каталог MITSUBISHI 2020 Режущий инструмент Фрезы Резцы Сверла Пластины Стр.E021

Каталог MITSUBISHI 2020 Режущий инструмент для станков Стр. E021 0401 Lab2u

PRECAUTIONS WHEN USING THE MICRO-MINI TWIN When using a holder for general purpose / small automatic lathe: fflTo avoid chipping of the 2nd cutting edge take care when inserting the boring bar into the holder. Refer to fig.1. If the 2nd edge contacts the internal face of the holder there is a possibility that it may chip. 5 When using this type of holder, there is a possibility that damage to the shank and the 2nd cutting edge can occur. Make sure that the clamping screws are tightened to the set torque value. Additionally make sure that there is no clamping screw near the 2nd cutting edge as this can break the boring bar. When using Mitsubishi holders When using holders with a tool overhang of recommended quantity, ensure that the 3rd clamping screw is removed prior to machining. (RBH1620N, RBH19020N, RBH2020N and RBH2520N do not have the 3rd screw.) The set torque value for clamping screw is 2.0 N-m. Fig.2 3rd clamping screw ' 3 / Insert point / 2nd cutting edge When using a square type holder: HWhen installing the boring bar into the holder, tighten the clamp screws after ensuring the flats on the tool holder are parallel to the reference flats on the micro-mini bar. Refer to fig.3. ElMake sure that the clamping screws are tightened to the recommended values. SlDo not tighten the clamp screw without a bar in place, otherwise the bridge will be deformed. of square type holder Tighten the clamping screw ensuring making the micro-mini twin boring bars is in contact with the reference plane of square type holder. E MACHINING METHODS OF THE CR TYPE 9Profile turning By drilling a pre-prepared hole, the machining time will be shortened and chip control will be improved. Cutting Conditions> Workpiece : JIS S20C Holder :CR05RS-01B Cutting Speed : 80m/min Machining a work piece without a pre-prepared hole Machining a work piece with a pre-prepared hole Feed Depth of Cut Wet Cutting : 0.05mm/rev : 0.05mm Inner end facing By drilling a pre-prepared hole, the machining time will be shortened and chip control will be improved. Cutting Conditions> Workpiece : JIS S20C Holder : CR05RS-01B Cutting Speed : 80m/min Machining a work piece without a pre-prepared hole Machining a work piece with a pre-prepared hole Feed Depth of Cut Wet Cutting : 0.05mm/rev : 0.05mm Depth of Cut Depth of Cut I NOTES FOR USE Profile turning, Inner end facing The cutting edge should not be cross the centre line of the work piece. If the cutting edge crosses the centre line of a work piece, the cutting edge can fracture. Copying The depth of cut should be smaller than the corner radius value. Depth of Cut With depths of cut larger than the corner radius value, burrs will be formed. TECHNICAL DATA > R001 E021 BORING BARS