Общий каталог Tungaloy 2020 - 2021 - страница 1673

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Faulty machining accuracy GradeInsertExt. ToolholderInt. ToolholderThreadingGroovingMiniature toolMilling cutterEndmillDrilling toolTooling SystemUser's GuideIndex User’s Guide - Technical Reference A Drilling To o l s Nomenclature for gun reamerGuide padTip Shank Driver B Corner Oil holeMarginPrimanyclearance angleSecondary clearance angle C Secondary engage anglePrimary engage angle D Tr o u b l e s h o o t i n g in gun reaming Trouble Possible cause Countermeasure¡Enlarge chamfer angle and¡Chamfer angle smallIncreased burnishing torqueincrease stock allowanceE due to excessively small ¡Excessive wear in peripheral ¡Reduce cutting speed to prevent stock allowance cutting edge.Breaking of reamer peripheral wear of edge¡Increase lubricity of cutting fluid F ¡Faulty filtering of cutting fluid ¡Improve filtering accuracy Sticking ¡Incorrect selection of cutting fluid ¡Change to fluid with higher lubricity ¡Insufficient cutting fluid pressure ¡Increase fluid pressureMechanical trouble¡Repair electrical systemG ¡Improve clamping method of workpiece Excessive feed rate per tooth ¡Reduce fluid pressure¡Increase number of teeth¡Excessive chamfer angle¡Reduce chamfer angleH Unacceptable Improper tool specifications ¡Excessive back taper ¡Reduce back taper surface ¡Peripheral run out excessive ¡Improve run out accuracy roughness Faulty regrinding ¡Cutting edge run out is large ¡Improve run out accuracy¡Residual damage of preceding process¡Remove residual damage completelyI Too large and Improper cutting fluid ¡Excessive fluid pressure ¡Reduce fluid pressure inconsistent ¡Improper selection of cutting fluid ¡Increase activity and lubricity of the fluid over size Faulty machine accuracy ¡Correct spindle run out andbushing clearance and alignment J Faulty clamping of workpiece ¡Clamping position wrong¡Clamping force inadequate¡Improper clamping position¡Increase clamping force Faulty machine accuracy ¡Excessive bushing clearance ¡Correct bushing clearance¡Faulty spindle run out and alignment¡Correct spindle run out and alignmentK Defective Improper tool specifications ¡Outer run out of reamer large¡Insufficient reamer rigidity¡Correct peripheral run out¡Increase reamer rigidity out-of-roundness Faulty clamping position of workpieceUnevenness in wall thickness of workpiece ¡Change clamping position¡Reduce reamer guide width L (margin width) Chamfer angle small ¡Increase chamfer angle Insufficient Excessive wear inoversizeperipheral cutting edge¡Too high cutting speed ¡Decrease cutting speed¡Faulty lubricity of cutting fluid¡Increase lubricating capacityM allowance Faulty regrinding (residual damage) ¡Increase regrinding stock amount Tungaloy L085