Общий каталог Yamawa 2021 - страница 91

Spiral Fluted Taps
Intro
HVSP
Z-PRO Series
SP Spiral Fluted Taps for large forged parts in the heavy
DIN metalworking industry
FEATURES
Z-PRO Series with BLF design for blind hole application.
2.5P
SL HSS-E OX Special geometry reduces cutting edge chipping
THCHT resulting in stable and longer life on steel, alloy steel and
stainless steel application.
OX treatment reduces welding troubles.
Recommended Tapping Speeds Depending On Materials
PO
ISO Vc (m/min) ISO Vc (m/min)
P1 3÷8 H M1 3÷8 H
P2 3÷8 H M2 3÷8 H
P3 3÷8 H
ST
P4 3÷8 I
P7 3÷8 H WATCH
THE VIDEO
H 1st choice I suitable
ROLL
DIN-HVSP


Tapping with HVSP Tapping with conventional SP
No chipping Chipping occurs on thread portion
Tapping Tapping
CARBIDE Workpiece material
direction
Workpiece material
direction
BLF Conventional
geometry geometry

LONG
"Heel" Conventional
Forwarding Smooth chip Forwarding Chip jamming
Chamfer ejection Chamfer on reverse motion
HAND
TAPS
No chipping Chipping
EG (STI)

SPECIAL
THREADS,
GAUGES
THREAD Smooth chip ejection by HVSP Entangled chips
MILLS

DIES

CENTER
DRILLS

Technical
info

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