Catalogue

Indexable faceted cubic boron nitride (cBN) inserts

www.virial.ru/en

St. Petersburg 2012

cBN inserts

ointly with RUSNANO VIRIAL Ltd. jmanufactures ceramic and cermet

cutting tools for metal and composite

machining, featuring high hardness,

excellent strength and thermal stability.

Our company manufactures and supplies

cutting tools with cubic boron nitride

(cBN)-based composite inserts widely

used in various industries, e.g.:

Heavy engineering

Machining of housings, gear wheels,

shafts, cylinders, hydraulic parts made of

hardened steel and cast iron grades.

Automotive industry

Machining of housings, brake discs,

powertrain parts, bearings.

Oil and gas production

Machining of pump parts, pressure and

stop valve components.

Aerospace

Machining of Ti alloy parts.

St. Petersburg 2012 2

3

Insert designation (as per ISO)

Insert

geometry

Clearance

angleTolerances

Insert geometry

(side view)

Cutting edge dimensionsInsert

thicknessRadius

St. Petersburg 2012

4

What is cBN?

Cubic boron nitride-based composite cutting inserts as per

Cutting tool quality is a crucial factor in achieving high-

efficiency and cost-effective machining. The material of

choice for today and to a great extent, tomorrow's cutting

tools is the cubic boron nitride (сBN). It meets all the major

demands placed on the cutting tools.

The main advantages of our cutting insets include:

-High hardness (~70000 MPa), machining capability for turning and milling of steel grades and alloys

with HRC 45-70

o-High thermal stability (up to 1300 С).

-High quality of as-machined surface (class 7 to 8)

-Threading capability for hardened steels

-Uneven surface machining capability (impact turning)

-Skin machining (stellite, sormite), weld joints

-Skin machining of cast parts

-Machining of chilled and high-strength cast irons

-Mn-steel machining

-Siliconized graphite machining

-Booth coolant-aided and coolant-free machining

All these advantages enable our customers to use VIRIAL cBN inserts:

-at increased depth of cutting

-at higher cutting speeds

-at larger feed rates

ISO - 1832 and GOST 28762-90 standards.

St. Petersburg 2012

St. Petersburg 2012 5

Hard turning as an alternative to grinding

Hard turning process physics is based on the specially engineered tool geometry

and cutting re ime leading to contact zone between t e tool cutting edge and g h

workpiece being heated nearly to melting point (contact temperature reaching up to

1500 °С), which results in workpiece tempering and consequent hardness

eduction down to HRC 25. Upon chip cooling the mate ial is rapidly cooled, so the r r

overall hardness loss is limited to less than 2 units, the removed chip having a

hardness around 45 units. The bulk of the part is eft virtually unheated. The l

purpose of hard turning as a replacement for grinding is the reduction of the labor

intensity of the part processing, and, consequently, boosted econo ic efficiency of m

processing.

Cost efficiency incre se is based on the following factors:a

Material removal during hard turning is roughly 1/3 that of duri g grinding n

Machining precision is eq al or both hard turning and grinding;u f

Processing time for hard turning is many times less, than the time required

for grinding;

No coola t is necessary n

Hard turning is much more flexible. Complicated parts may be easily m chined, while in grinding similar parts the wheel exchange and machine atool adjustm nt are necessary;e

Hard turning may be effected on the same machine ool used for regular t turning of parts before hardening, which additionally contributes to the process flexibility and versatility;

Chip disposal recycling after hard turning is cheaper than that af er grinding./ t

The above demonstrates that hard turning is almost in any case is 30 to 50

% more cost-efficient than grinding.

High stability of insert facets is based on the high-intensity coalescen e of cthe grains in microstructure. Chemi al stability is provided by the strong cnature of bonding between boron and nitrogen.

Chemical stability is best demonstrated in machining o ferrous metals, fpreventing the diffusion and oxidation processes that normally ause edge cweare during machining.

St. Petersburg 2012 6

Selecting insert geometry

Solid inserts, fastened by clamping on top

ISO marking CNMN 05 03 04

CNMN 05 03 08

CNMN 05 03 12

CNMN 09 03 04

CNMN 09 03 08

CNMN 09 03 12

CNMN 12 03 04

CNMN 12 03 08

CNMN 12 03 12

CNMN 12 T3 08

CNMN 12 T3 12

CNMN 12 04 08

CNMN 12 04 12

d l s r

5.56

5.56

5.56

9.525

12.7

9.525

9.525

12.7

12.7

12.7

12.7

12.7

12.7

3.18

3.18

3.18

3.18

3.18

3.18

3.18

3.18

3.18

3.97

3.97

4.76

4.76

0.4

0.8

1.2

0.4

0.8

1.2

0.4

0.8

1.2

0.8

1.2

0.8

1.2

6.0

6.0

6.0

9.7

9.7

9.7

12.9

12.9

12.9

12.9

12.9

12.9

12.9

cBN grade

К-07

Inserts with clearance angle: 0, 5, 7

feed rate (mm per revolution) depth of cutf min|f max ap min|ap max

Insert geometry designationapplication

solid

CNMN 05 03 04

CNMN 05 03 08

CNMN 05 03 12

CNMN 09 03 04

CNMN 09 03 08

CNMN 09 03 12

CNMN 12 03 04

CNMN 12 03 08

CNMN 12 03 12

CNMN 12 T3 08

CNMN 12 T3 12

CNMN 12 04 08

CNMN 12 04 12

00.5|0.10

00.5|0.25

00.5|0.15

00.5|0.20

00.5|0.26

00.5|0.27

00.5|0.27

00.5|0.25

00.5|0.26

00.5|0.26

00.5|0.26

00.5|0.27

00.5|0.27

00.5|1.0

0.10|3.60

00.5|1.0

00.5|1.0

0.10|3.60

0.10|3.60

0.10|3.60

0.10|3.80

0.10|4.0

0.10|3.60

0.10|4.0

0.10|3.80

0.10|4.0

St. Petersburg 2012 7

Selecting insert geometry

Solid inserts, fastened by clamping on top

Inserts with clearance angle: 0, 5, 7

feed rate (mm per revolution) depth of cutf min|f max ap min|ap max

Insert geometry designationapplication

solid

Full-top

ISO marking RNMN 05 03 00

RNMN 05 03 00

RNMN 05 T3 00

06 03 00RNMN

RNMN 07 03 00

08 03 00RNMN

09 03 00RNMN

T3 00RNMN09

12 03 00RNMN

12 04 00RNMN

d l s r

3.6

5.56

5.56

6.35

9.525

7.0

8.0

9.525

12.7

3.18

3.18

3.97

3.18

3.18

3.18

3.18

3.97

3.18

cBN grade

К-07

12.7 4.76

RNMN 05 03 00

RNMN 05 03 00

RNMN 05 T3 00

06 03 00RNMN

RNMN 07 03 00

08 03 00RNMN

09 03 00RNMN

T3 00RNMN09

12 03 00RNMN

12 04 00RNMN

0.10|0.30

0.10|0.80

0.10|0.50

0.10|0.70

0.10|1.0

0.10|2.44

0.10|2.80

0.10|2.44

0.10|2.65

0.10|2.90

0.10|0.30

0.15|2.70

0.15|1.0

0.15|1.0

0.15|2.70

0.15|2.70

0.15|3.60

0.15|2.70

0.15|2.70

0.15|3.60

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Se ctingle in rt ge etryse om

lid e s, as ne b lampin o toSo ins rt f te d y c g n p

h e , Inserts wit clearanc angle: 0 5, 7

fe d rate (mm per revolut on)e i depth of c tu in| axf m f m ap min|ap axm

Insert eometryg esignatiod npp i ationa l c

ol ds i

rased-t pB i

IS markingON 3 T MN 09 0 08

0 2 3 1 TNMN 09

3 11 0 08NTNM

03 12TNMN 11

0 16 03 8TNMN

0 T3 8T M 6N N 1

M 6 TN N 1 04 08

d l s r

5.56

5.56

6.35

9.52

9.52

9.52

9.52

.183

3.18

3.18

3.18

3.18

3.97

764.

0.8

1.2

0.8

1.2

0.8

0.8

.80

9.0

9.0

.011

11.0

.016

16.0

16.0

BN gradc e

К-07

TN N 0 03 08M 9

0 123T MN 9N 0

1 03 08 1 TNMN

03 12TNM 11N

16 3 0 0 8TNMN

T3 08TNMN 16

TNMN 16 04 8 0

0. 2|0.10

0.0 |0 22 .1

.02 0.10 |

0 02|0.1. 2

0.02|0 12.

.02 0.140 |

0. 2|0.140

0.05|1.0

0.0 |1.5 5

0.05 1.5|

0 05| .5. 1

0.0 |1 705 .

.05 1.70 | 0

.05 1.70 | 0

9St. Petersburg 2012

Selecting insert geometry

Solid inserts, fastened by clamping on top

Inserts with clearance angle: 0, 5, 7

feed rate (mm per revolution) depth of cutf min|f max ap min|ap max

Insert geometry designationapplication

solid

Brased-tip

ISO marking SNMN 09 03 08

SNMN 09 03 12

SNMN 05 T3 08

SNMN 09 T3 12

SNMN 09 T3 16

SNMN 12 03 08

SNMN 12 03 12

SNMN 12 04 08

SNMN 12 04 12

d l s r

9.525

9.525

9.525

12.7

9.525

12.7

12.7

12.7

3.18

3.18

3.97

3.97

3.97

3.18

3.18

4.76

4.76

0.8

1.2

1.6

0.8

1.2

1.6

0.8

1.2

0.8

1.2

cBN grade

К-07

SNMN 09 03 16 9.525

9.525

3.18

SNMN 09 03 08

SNMN 09 03 12

SNMN 05 T3 08

SNMN 09 T3 12

SNMN 09 T3 16

SNMN 12 03 08

SNMN 12 03 12

SNMN 12 04 08

SNMN 12 04 12

SNMN 09 03 16

0.10|0.26

0.10|0.36

0.10|0.26

0.10|0.36

0.10|0.46

0.15|0.54

0.15|0.36

0.15|0.36

0.15|0.54

0.15|0.54

0.10|5.0

0.10|5.0

0.10|5.0

0.10|5.0

0.10|5.0

0.10|5.0

0.10|6.0

0.10|6.0

0.10|6.0

0.10|6.0

10St. Petersburg 2012

Tool performance parameter

H

K

Material group

Description and gradeISO group

Structural and low-alloyed

steels

Bearing steels and special

steels

Structural steel and high alloy

Structural and spring steels

Carbon (tool) and alloyed steels

High-speed steels

Mn-steels and Hallfield steels

Brazing-reinforced steels by

hard wire or powder

Grey cast iron with hardness HB

140…290

High-strength iron with hardness

HB 260…420

Alloyed and chilled cast iron

grades with hardness HB

280…420

Roll-foundry and wear-resistant

cast iron grades with hardness

HRC 48…68

Machining parameters

Machining typeCutting regimes

roughing

roughing

roughing

roughing

roughing

roughing

roughing

roughing

roughing

roughing

roughing

roughing

finishing

finishing

finishing

finishing

finishing

finishing

finishing

finishing

finishing

finishing

finishing

finishing

Vc, m/min fz, mm Hooth mm

For notes:

St. Petersburg 2012

St. Petersburg 2012

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