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GB/T 2081-2018Indexable hard metal (carbide) inserts with wiper edges, without fixing hole -- Dimensions (English PDF)

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

September 17, 2018

Implementation date

June 1, 2019

Scope

GB/T 2081-2018 (Indexable hard metal (carbide) inserts with wiper edges, without fixing hole -- Dimensions) is available as an English-translated PDF.

GB/T 2081-2018 — This standard specifies the size of carbide indexable milling inserts with wiper and without fixing holes. These blades are mainly pressed by the top or wedge Tightly mounted on the milling tool.

Document preview — GB/T 2081-2018

National Standard of the People's Republic of China

ICS: 77.160
Classification: H 72
Replacing: GB/T 2081-1987

Issued by: State Administration for Market Regulation, China National Standardization Administration

Foreword
1 Scope
2 Normative references
3 blade type
4 interchangeability
4.1 Tolerance
4.2 Size m
5 Name and logo
5.1 Name
5.2 Identification
6 detection
7 recommended size
7.1 triangular blade
7.2 square blade
12.70 +/- 0.08

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 2081-1987 "Carbide Indexable Milling Insert", compared with GB/T 2081-1987, the main changes are as follows.

---Modified the standard name, changing the standard name from "Carbide Indexable Milling Insert" to "Hard-fit with light-cutting edge and no fixing hole"

Gold indexable milling insert size";

--- Added Chapter 3 "Blade Type" and Chapter 4 "Interchangeability";

--- Added Chapter 5 "Name and Logo";

--- Adjust Tables 1 to 12 according to ISO 3365 layout;

--- Removed the requirements of Table 8 of the original standard, namely the requirements and regulations of FPCN;

--- Removed the requirements of Table 9 of the original standard, that is, the requirements and regulations of LPEX;

--- Removed the technical requirements in the original standard;

--- Move the original Appendix B to Appendix A;

--- Removed the original standard Appendix C "Carbide indexable insert blank for milling";

--- Added Appendix C "with light wiper, no fixed hole blade size range";

--- Added Appendix D "Correspondence between this standard and ISO 13399".

This standard uses the translation method equivalent to ISO 3365.2016 "Carbide indexable milling inserts with a light-cutting edge and no fixing holes".

The documents of our country that have a consistent correspondence with the international documents referenced in this standard are as follows.

---GB/T 2075-2007 Classification and use of hard cutting materials for cutting Large group and use group classification code

(ISO 513.2004, IDT)

---GB/T 2076-2007 Index for indexable inserts for cutting tools (ISO 1832.2004, MOD)

This standard was proposed by the China Nonferrous Metals Industry Association.

This standard is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243).

This standard was drafted. Zhuzhou Diamond Cutting Tool Co., Ltd., Xiamen Golden Heron Special Alloy Co., Ltd., Zigong Cemented Carbide

Limited liability company, Shenzhen Injection Technology Co., Ltd., Zhuzhou Cemented Carbide Group Co., Ltd.

1 Scope

This standard specifies the size of carbide indexable milling inserts with wiper and without fixing holes. These blades are mainly pressed by the top or wedge

Tightly mounted on the milling tool.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

ISO 513 Classification and use of hard cutting materials for metal cutting. Classification and use of large groups and use groups (Classification

Andapplicationofhardcuttingmaterialsformetalremovalwithdefinedcuttingedges-Designationof

Themaingroupsandgroupsofapplication)

ISO 1832 cutting tool indexable insert name and symbol (Indexableinsertsforcuttingtools-Designation)

3 blade type

The carbide indexable inserts specified in this standard are of the following types.

---TPPPN

An equilateral triangle blade with a 11° back angle, a 90° lead angle, and a 11° wiper back angle;

---TPPDR; TPPDL

An asymmetrical triangular blade having a chamfer, a 11° relief angle, a 90° lead angle, and a 15° wiper back angle;

---TEPER;TEPEL

An asymmetrical triangular blade having a chamfer, a 20° relief angle, a 90° lead angle, and a 20° wiper back angle;

---SNENN

a square blade with chamfer, 0° back angle, 75° lead angle, 0° wiper back angle;

---SPEDR; SPEDL

An asymmetrical square blade having a chamfer, a 11° relief angle, a 75° lead angle, and a 15° wiper back angle;

---SNANN

Square blade with 0° back angle, 45° lead angle, 0° wiper back angle;

---SEEER; SEEEL

Asymmetrical square blade with a 20° back angle, a 75° lead angle, and a 20° wiper back angle.

The standard only specifies blades with a wiper without fixing holes without chipbreakers.

4 interchangeability

4.1 Tolerance

According to ISO 1832, the carbide indexable inserts mentioned in this standard provide the following tolerance levels.

a) 0°, 11° back angle inserts (TP, SN and SP). The tolerance grades are divided into A grade, C grade, K grade, of which grade C is mainly used for coating.

blade;

b) 20° back angle insert (TE, SE). tolerance class C.

Appendix A gives these tolerance values in accordance with ISO 1832. For other tolerances, see the drawings and tables for the blade dimensions in Chapter 7.

4.2 Size m

The m value specified in this standard is the theoretical value. In fact, due to the different manufacturing and inspection positions of the blades, different manufacturers will guide

The size of the m value varies within +/-0.05 mm. For the same blade manufacturer, the m value shall be implemented in accordance with ISO 1832 (see

Appendix A).

5 Name and logo

5.1 Name

The name of the carbide indexable inserts shall be in accordance with ISO 1832. Except for the name, one or both of the following may be indicated.

--- Indicate the application area code according to ISO 513;

--- Carbide grade.

5.2 Identification

The following markings should be on the blade (unless the blade is too small to be identified). Application code or carbide grade (if the blade is large enough,

It is also possible to identify both).

6 detection

See Appendix B for the method for detecting the m value of cemented carbide indexable inserts.

7 recommended size

When using, try to use the recommended size of the blade given in Tables 1 to 12.

7.1 triangular blade

7.1.1 The 90° lead angle, the 11° back angle, and the 11° wiper back angle are shown in Figure 1. The parameters are shown in Table 1. The tolerances are shown in Table 2.

figure 1

Table 1 is in millimeters

blade

Da sa ma

B's

Epsilonr phi

TPAN1103PPN TPCN1103PPN TPKN1103PPN 11.0 6.35

TPAN1603PPN TPCN1603PPN TPKN1603PPN 16.5 9.525

TPAN2204PPN TPCN2204PPN TPKN2204PPN 22.0 12.70

3.175

4.76

1.72 0.7

2.45 1.2

3.55 1.3

60° 30°

The ad, s, and m tolerances are in accordance with ISO 1832, as detailed in Appendix A.

Table 2

Tolerance level

tolerance

Epsilonr phi

+/-8' 15'0

K +/-30' 30'0

7.1.2 Asymmetric triangular inserts with chamfering, 90° lead angle, 11° back angle, and 15° wiper back angle are shown in Figure 2. The parameters are shown in Table 3. See the tolerances.

Table 4.

figure 2

Table 3 is in millimeters

blade

Da sa ma

B's

Epsilonr phi

TPAN1603PDR

TPAN1603PDL

TPCN1603PDR

TPCN1603PDL

TPKN1603PDR

TPKN1603PDL

16.5 9.525 3.175 2.45 1.3

TPAN2204PDR

TPAN2204PDL

TPCN2204PDR

TPCN2204PDL

TPKN2204PDR

TPKN2204PDL

22.0 12.70 4.76 3.55 1.4

60° 30°

The ad, s, and m tolerances are in accordance with ISO 1832, as detailed in Appendix A.

Table 4

Tolerance level

tolerance

Epsilonr phi

+/-8' 15'0

K +/-30' 30'0

7.1.3 Asymmetric triangular inserts with chamfer, 90° lead angle, 20° back angle, and 20° wiper back angle are shown in Figure 3. The parameters and tolerances are shown in Table 5.

image 3

Table 5 is in millimeters

blade

Da sa ma

B's

Epsilonr

+/-8'

15'

TECN1603PER

TECN1603PEL

16.5 9.525 3.175 2.19 2.0 60° 30°

The ad, s, and m tolerances are in accordance with ISO 1832, as detailed in Appendix A.

7.2 square blade

7.2.1 The square inserts with chamfering, 75° lead angle, 0° back angle, and 0° wiper back angle are shown in Figure 4. The parameters are shown in Table 6. The tolerances are shown in Table 7.

Figure 4

Table 6 is in millimeters

Blade da sa ma

B's

Epsilonr phi

SNAN1204ENN SNCN1204ENN SNKN1204ENN 12.70

SNAN1504ENN SNCN1504ENN SNKN1504ENN 15.875

SNAN1904ENN SNCN1904ENN SNKN1904ENN 19.05

4.76

4.76b

0.8

1.5

1.3

1.4

2.0

90° 75°

The ad, s, and m tolerances are in accordance with ISO 1832, as detailed in Appendix A.

b In some national standards, the 5.56mm thickness (SN.N1905ENN) may replace the 4.76mm thickness.

Table 7

Tolerance level

tolerance

Epsilonr phi

+/-8' 15'0

K +/-30' 30'0

7.2.2 Asymmetric square inserts with chamfer, 75° lead angle, 11° back angle, and 15° wiper back angle are shown in Figure 5. The parameters are shown in Table 8. See the tolerances.

Table 9.

Figure 5

Table 8 is in millimeters

Blade da sa ma

B's

Epsilonr phi

SPAN1203EDR

SPAN1203EDL

SPCN1203EDR

SPCN1203EDL

SPKN1203EDR

SPKN1203EDL

12.70 3.175 0.90

SPAN1504EDR

SPAN1504EDL

SPCN1504EDR

SPCN1504EDL

SPKN1504EDR

SPKN1504EDL

15.875 4.76 1.25

1.4 90° 75°

The ad, s, and m tolerances are in accordance with ISO 1832, as detailed in Appendix A.

Table 9

Tolerance level

tolerance

Epsilonr phi

+/-8' 15'0

K +/-30' 30'0

7.2.3 The 45° lead angle, 0° back angle, and the 0° wiper back corner square insert are shown in Figure 6. The parameters are shown in Table 10. The tolerances are shown in Table 11.

Image 6

Table 10 is in millimeters

Blade da sa ma

B's

Epsilonr phi

SNAN1204ANN SNCN1204ANN SNKN1204ANN 12.70

SNAN1504ANN SNCN1504ANN SNKN1504ANN 15.875

SNAN1904ANN SNCN1904ANN SNKN1904ANN 19.05

4.76

4.76b

1.60 2.0

2.00 2.5

2.50 3.0

90° 45°

The ad, s, and m tolerances are in accordance with ISO 1832, as detailed in Appendix A.

b In some national standards, the 5.56mm thickness (SN.N1905ANN) may replace the 4.76mm thickness.

Table 11

Tolerance level

tolerance

Epsilonr phi

+/-8'

15'

K +/-30'

30'

7.2.4 Asymmetric square inserts without chamfering, 75° lead angle, 20° back angle, 20° wiper back angle are shown in Figure 7. The parameters and tolerances are shown in Table 12.

Figure 7

Table 12 is in millimeters

Blade da sa ma

B's

Epsilonr

+/-8'

15'

SECN1203EER

SECN1203EEL

12.70 3.175 0.8 2.5 90° 75°

The ad, s, and m tolerances are in accordance with ISO 1832, as detailed in Appendix A.

Appendix A

(normative appendix)

d, m, s tolerance (excerpt ISO 1832)

A.1 Class A tolerance

Class A tolerances are shown in Table A.1.

Table A.1 is in millimeters

d +/-0.025

m +/-0.005

s +/-0.025

A.2 Class C tolerance

Class C tolerances are shown in Table A.2.

Table A.2 is in millimeters

d +/-0.025

m +/-0.013

s +/-0.025

A.3 Class K tolerance

Class K tolerances are shown in Table A.3.

Table A.3 is in millimeters

Blade tolerance

Model ddms

T11 6.35 +/-0.05

T16 9.525 +/-0.05

T22

S12

12.70 +/- 0.08

S15 15.875 +/-0.10

S19 19.05 +/-0.10

+/-0.013 +/-0.025

Appendix B

(normative appendix)

Method of detecting m value

B.1 triangular blade

The m value is measured by the same standard cylinder with the same diameter as the inscribed circle of the insert. Placed on a standard cylinder as shown in Figure B.1

A block gauge with a size equal to the m value, calibrate the dial gauge to zero position, then place the blade in a 60° V block, and the dial gauge will accurately measure the knife

The m-value deviation of the sheet, the diameter deviation of the standard cylinder is +/-0.002 mm.

Figure B.1

B.2 square blade

The m value is measured by the same standard cylinder with the same diameter as the inscribed circle of the insert. The main declination is 75° as shown in view B.2a)

The blade with the lead angle shown in Figure B.2b) is a 45° blade. When measuring, place a block gauge with the size equal to the m value on the standard cylinder and calibrate the dial gauge to zero.

Position, then place the blade on the 90° V block, the dial gauge will accurately measure the m value deviation of the blade, and the diameter deviation of the standard cylinder is

+/-0.002mm.

a) b)

Figure B.2

The three-point positioning of the blade is used when measuring the m value using the block. Two of the points should form an angle phi with the back corner of the wiper

The flank of a blade edge.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

Referenced standards

Normative references

ISO 513 · ISO 1832

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