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Recommended Cutting Conditions — Full Tables

Cutting speed and feed recommendations from the Koves cermet catalogue: grooving, threading, small-bore boring, milling and turning, for KT20 and KCT25 grades.

These tables are transcribed from the Koves cermet catalogue. They are starting values — confirm against your machine rigidity, holder and workpiece condition. Send us the operation and we will confirm grade and parameters.

Grooving insert (catalogue p19)

Grooving insert — p19
WorkpieceOperationVc_KT20 (m/min)Vc_KCT25 (m/min)f 0.33-0.50 (mm/rev)f 0.75-0.95 (mm/rev)f 1.00-1.45 (mm/rev)f 1.50-2.50 (mm/rev)
P 钢 Steel切槽加工 Grooving80-22080-2200.01-0.050.02-0.070.03-0.080.03-0.08
P 钢 Steel横向加工 Turning80-22080-2200.03-0.060.03-0.06
M 不锈钢 Stainless Steel切槽加工 Grooving70-16070-1600.01-0.040.2-0.060.03-0.070.03-0.07
M 不锈钢 Stainless Steel横向加工 Turning70-16070-1600.02-0.050.02-0.05
K 铸铁 Cast Iron切槽加工 Grooving
K 铸铁 Cast Iron横向加工 Turning
N 有色金属 Nonferrous metal切槽加工 Grooving
N 有色金属 Nonferrous metal横向加工 Turning

Recommended Cutting Conditions / Small diameter inner hole turning tool (catalogue p22)

Threading Vc

Threading Vc — p22
GroupWorkpieceConditionHBVc_KT20 (m/min)Vc_KCT25 (m/min)
P碳素钢 Carbon Steel约0.15%C 退火 Annealed125100-150100-150
P碳素钢 Carbon Steel约0.45%C 退火 Annealed190100-150100-150
P碳素钢 Carbon Steel约0.45%C 调质 Quenched250100-150100-150
P碳素钢 Carbon Steel约0.75%C 退火 Annealed270100-150100-150
P碳素钢 Carbon Steel约0.75%C 调质 Quenched300100-150100-150
P低合金钢 Low Alloy Steel退火 Annealed180100-150100-150
P低合金钢 Low Alloy Steel调质 Quenched and Tempered275100-150100-150
P低合金钢 Low Alloy Steel调质 Quenched and Tempered300100-150100-150
P低合金钢 Low Alloy Steel调质 Quenched and Tempered350100-150100-150
P高合金钢 High Alloy Steel退火 Annealed200100-150100-150
P工具钢 Tool Steel淬火并回火 Quenched and Tempered325100-150100-150
M不锈钢 Stainless Steel铁素体/马氏体 Ferrite/Martensite20060-8060-80
M不锈钢 Stainless Steel马氏体 Martensite33060-8060-80
M不锈钢 Stainless Steel奥氏体 Austenite20060-8060-80
K灰口铸铁 Grey Cast Iron铁素体 Ferrite130
K灰口铸铁 Grey Cast Iron珠光体 Pearlite230
K球墨铸铁 Nodular Cast Iron铁素体 Ferrite180
K球墨铸铁 Nodular Cast Iron珠光体 Pearlite260
K可锻铸铁 Malleable Cast Iron铁素体 Ferrite160
K可锻铸铁 Malleable Cast Iron珠光体 Pearlite260
N铝合金 Aluminium Alloys非时效淬硬 Non-aging Hardened60
N铝合金 Aluminium Alloys时效淬硬 Aging Hardened100
N铝合金 Aluminium Alloys高硅合金 13-22% Si130
N铜和铜合金 Copper Alloy黄铜 Brass100
N铜和铜合金 Copper Alloy青铜 Bronze100

Small Bore Boring

Small Bore Boring — p22
MaterialVC (m/min)f Φ1.0-Φ2.0 (mm/rev)f Φ2.5-Φ4.0 (mm/rev)f Φ4.5-Φ5.5 (mm/rev)
Free-cutting steel 易削铁30-120
Low alloyed steel 低合金钢30-120
High alloyed steel 高合金钢30-120
Stainless steel 不锈钢30-80
Aluminium 铝合金
Titanium 钛合金
Copper 铜

Series Overview

Series Overview — p22
SeriesApplicationFeatures
PSBR内孔加工 Inner hole machining最小加工直径3.2mm
PSCR内孔倒拉加工 Back turning machining for inner hole最小加工直径3.2mm
PSGR内孔切槽加工 Internal grooving machining最小加工直径3.2mm，槽宽1.0-2.5mm
PSGFR端面槽加工 Face grooving machining最小加工直径6.0mm，槽宽1.0-4.5mm
PSTR内螺纹加工 Internal thread machining最小加工直径3.3mm，螺距0.5-1.5mm

Milling insert (catalogue p28)

Milling insert — p28
GroupWorkpieceHBGradeVc (m/min)f (mm/z)ap (mm)
P钢 Steel<180KT20200-3600.1-0.3
P钢 Steel180-280KT20180-3500.1-0.3
P钢 Steel280-350KT20170-3400.1-0.3
M不锈钢 Stainless Steel<270KT20110-2700.1-0.3
K铸铁 Cast Iron
N铝合金 Aluminium AlloysKT203000.1-0.4
H高硬钢 Hardness

Milling insert (catalogue p29)

Rc

Rc — p29
GroupWorkpieceHBGradeVc (m/min)f (mm/z)ap (mm)
P钢 Steel<180KT20200-3600.1-0.45
P钢 Steel180-280KT20180-3500.1-0.45
P钢 Steel280-350KT20170-3400.1-0.45
M不锈钢 Stainless Steel<270KT20110-2700.1-0.45
K铸铁 Cast Iron
N铝合金 Aluminium Alloys
H高硬钢 Hardness

Apmt

Apmt — p29
GroupWorkpieceHBGradeVc (m/min)f (mm/z)ap (mm)
P钢 Steel<180KT20140-2500.04-0.15
P钢 Steel180-280KT20130-2500.04-0.15
P钢 Steel280-350KT20110-2400.04-0.15
M不锈钢 Stainless Steel<270KT2080-1900.04-0.15
K铸铁 Cast Iron
N铝合金 Aluminium Alloys
H高硬钢 HardnessKT2070-120

Turning (M / G grade)

Recommended cutting conditions — turning (M / G grade)
Workpiece materialHardness HBVc KT20 (m/min)Vc KCT25 (m/min)Grade
100-150100-150KT20 / KCT25
100-150100-150KT20 / KCT25
100-150100-150KT20 / KCT25
100-150100-150KT20 / KCT25
100-150100-150KT20 / KCT25
100-150100-150KT20 / KCT25
60-8060-80KT20 / KCT25
60-8060-80KT20 / KCT25

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