Каталог Iscar сверла ружейные и для глубокого сверления 2022 - страница 93

DEEP DRILLING - BTA SYSTEM USER GUIDE Deep Hole Drilling Systems Problem Possible Cause Solution The drill breaks or • Chip evacuation problems • Check that the coolant passages are clear insert chips • Center misalignment of drill to workpiece and that the Venturi slots are not damaged • Check center alignment of drill to workpiece • Check workpiece and drill clamping rigidity Poor surface finish • Workpiece or drill clamping rigidity problem • Improve workpiece or drill clamping • Inadequate coolant oil • Check the coolant oil and replace if necessary • Cutting speed too low • Increase the cutting speed Excessive leakage of • Chips block the fluid passages • Clear the chips the coolant • The drill was incorrectly assembled, • Check all connections and the or the Venturi slots of the internal tube direction of the internal tube are located in the wrong direction Insufficient coolant • Chips block the fluid passages • Clear the chips flow at the cutting • Worn bushing or sealing device • Check the bushing and seal zone, despite correct • Venturi slots are too wide (worn) and replace if necessary fluid supply • Internal tube shorter than the external tube • Replace the internal tube • Replace the internal tube to one with a correct length Chips jam in the front • Insufficient coolant flow • Adjust the fluid flow by raising the pressure; end of the drill check the filter and fluid quality Connection Adapters Special Heads Various kinds of rotating and non-rotating drill Special form heads for trepanning or any other connectors are available upon request. special contours can be produced on request. Oil Pressure Heads Oil pressure heads are available on request. 277