1783 Каталог MITSUBISHI 2020 Режущий инструмент Фрезы Резцы Сверла Пластины Стр.R031

Каталог MITSUBISHI 2020 Режущий инструмент для станков Стр. R031 1783 Lab2u

TROUBLE SHOOTING FOR DRILLING \\ Solution Cutting Conditions Style and Design of the Tool Machine, Installation of Tool Cutting speed Feed Lower feed at initial cutting Lower feed when breaking through Step feed Increase accuracy of prep-hole and depth Coolant Chisel width Honing width Core thickness Shorten flute length Decrease lip height Use Internal coolant type drill Change to a drill with X type thinning Increase tool installation accuracy Shorten tool overhang Flat workpiece face Increase work clamping rigidity Reduce machine backlash and increase rigidity Increase oil ratio Increase volume Increase coolant pressure Trouble \ F actors\ Up/ Down \ Up Down \ Lack of drill rigidity i Drill breakage Improper cutting conditions Large deflection oftne tool holder £ Li o Workpiece face is inclined Large wear at the Improper cutting conditions £ 4 peripheral cutting edge and along An increase in temperature at the cutting point c o 4 ' TO the land Poor run-out accuracy Chipping of the peripheral cutting edge Improper cutting conditions o L CD Large deflection oftne tool holder D Q chattering, vibration The chisel edge width is too wide Chisel edge chipping Poor entry Chattering, vibration Hole diameter Lack of drill rigidity I a TO L- increases Improper drill geometry Hole diameter becomes smaller An Increase In temperature at the cutting point D a a improper cutting conditions u 0 1 Improper drill geometry Lack of drill rigidity o c Poor straightness Large deflection oftne tool holder o ra i- o 'E Poor guiding properties Lack of drill rigidity i u a) Q Poor hole positioning accuracy roundness and surface finish Poor entry Improper cutting conditions Large deflection of tne tool holder (/> k i- Burrs at the Improper drill geometry % CQ hole exit Improper cutting conditions "ro %n Long chips Improper cutting conditions Q. in O o. o Poor chip disposal Chip Improper cutting conditions Q jamming Poor chip disposal R031 TECHNICAL DATA