Общий каталог Yamawa 2021 - страница 703

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Troubles Check point SegmentsPrevent excessive cutting torqueBreakage Prevent clogging of chipsTapExcessiv Workpiecee wear Tap
Hardness∙ Use workpiece which has regular structure and hardness.∙ Use workpiece which has regular structure and hardness.
Shape∙ Pay attention to tapping thickness.position and material∙ Pay attention to tapping position and material thickness.
Workpiece Bored hole∙ Provide bigger bored holes. ∙ Prevent work hardening.∙ Provide bigger bored holes. ∙ Provide countersinking on hole entrance. ∙ Prevent work hardening
∙ Provide deeper bored hole. ∙ Prevent slanting of hole.
Machine∙ Avoid inconsistent feed. ∙ Adjust feed stroke
Jigs, Holders∙ Use holder fl oating type. ∙ Use tap holder with torque limiter.
Cutting condition∙ Reduce cutting speed∙ Reduce cutting speed
Lubricant∙ Use cutting oil which prevents cold welding. ∙ Use cutting oil.∙ Provide proper timing for i cutting oil. ∙ Prevent mixing of diff ere ∙ Use cutting oil which pre ∙ Use cutting oil. ∙ Adjust fl ow of cutting oil lubrication.changing or fi lling-up of f nt type of oil. vents cold welding. l and method of
On process∙ Remove unnecessary chips during tapping. ∙ Provide bigger space for chips disposal.
Selection∙ Use PO tap (through hole). ∙ Use SP tap (blind hole). ∙ Use roll tap.
Tap Design∙ Provide bigger chiproom.∙ Change material of taps. ∙ Provide proper hardness on taps.∙ Use serial set tap. ∙ Change material of taps. ∙ Provide proper hardness on taps.
∙ Reconsider length of cutt ∙ Use set tap.ing chamfer.∙ Reconsider length of cutt ∙ Provide nitride on taps.ing chamfer.
Regrind∙ Be careful about burning ∙ Provide proper land.during re-sharpening.∙ Be careful about burning ∙ Increase re-sharpening frduring re-sharpening. equency.

SP

PO

CARBIDE

LONG

EG (STI)

THREADS,

GAUGES

THREAD

MILLS

CENTER

DRILLS