Общий каталог Mitsubishi 2020 - 2021 - страница 1744

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Short Tool LifePoor Hole AccuracyBurrChip Control Cutting Speed Feed Rate Lower the Feed at Initial Entry Lower the Feed when Exiting Step Feed Increase the Accuracy and the Depth of the Pre-hole Increase Oil Ratio Increase Volume Increase Coolant Pressure Chisel Width Honing Width Core Thickness Shorten the Flute Length Decrease the Lip Height Use a Drill with Coolant Holes Change to a Drill with X Type Thinning Tool Installation Accuracy Shorten Tool Overhang Flatten the Work Material Face Work Material Installation Accuracy Machine Stability, Rigidity TECHNICAL DATA TROUBLE SHOOTING FOR DRILLING Cutting Conditions Style and Design Machine andof the ToolInstallation of Tool Solutions Cutting Fluids Trouble Factors UpDown LargeSmall Lack of drillrigidity a a Improper cutting a Drill breakage conditionsLarge deflectionof the tool holder a a Work materialface is inclined a Improper cutting a Large wearat the peripheralcutting edgeconditionsIncrease in temp.at cutting pointPoor run-out a a a a accuracy lmproper cutting aChipping ofthe peripheralcutting edgeconditionsLarge deflectionof the tool holderChattering,a a a aaaa vibration The chisel edge a width is too large Chisel edgechippingPoor entry a Chattering, a a a a vibration Lack of drillHole diameterrigidity a a increases Improper drill a geometry Increase in temp.Hole diameterbecomessmallerat cutting pointImproper cuttingconditionsImproper drillageometry a a aa Lack of drillrigidity a a Poor Large deflectionstraightnessof the tool holder a a Poor guidingproperties a Lack of drillPoor holerigidity a a positioning Poor entry a accuracy,roundness andImproper cuttingconditions a surface finish Large deflection a a of the tool holder Improper drill a Burrs at the geometry hole exit Improper cutting a conditionsImproper cuttingLong chipsconditionsPoor chipadisposal a a a a a P Improper cutting a aChip packingconditionsPoor chip a a a a a disposal P029