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HENAN ZHONGTU SUPERHARD MATERIAL CO., LTD

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Solid CBN inserts
RCGV
RCGX
SCGN
WNGN
DNMN
CNMN
SNGN
RNGN
TNGN
PCBN braze inserts
VNGA
DNGA
TNGA
WNGA
CNGA
SCGW
SNGA
Multi-tipped PCBN inserts
MGGN
WNGA
TNGA
CCGW
DCGW
DNGA
VCGW
VNGA
SNGA
PCD inserts
MGGN
VCGT
VCGW
TCMT
TCGW
WCGT
WCGW
DCMT
DCGW
CCMT
PCD/PCBN blank
PCBN Blanks
PCD Blanks
Diamond Grinding Wheels
Vitrified bond diamon…
Resin bond diamond gr…

Solid CBN inserts for Brake Drum

HENAN ZHONGTU SUPERHARD MATERIAL CO., LTD 2019-6-22 16:06:09 9

Workpiece: the rear brake disc

Machining position: outer circle,top braking surface

Material of workpiece: HT250

Toughness: 190-220HB

Comparison of processing parameters and effects

Cutting toolsVcapf
Solid CBN inserts SNGN120712300-650 m/min2-3 mm0.5 mm/rev
CompareSpeed Vc(m/min)Lifetime
Other CBN500200pcs/edge
ZBN850300pcs/edge
Life of ZTSUPERHARD Solid CBN inserts is 70% higher while the efficiency is 50% higher.
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