GB/T 2081-2018 English PDF

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

GB/T 2081: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 2081-2018	359	Add to Cart	3 days	Indexable hard metal (carbide) inserts with wiper edges, without fixing hole -- Dimensions	Valid
GB/T 2081-1987	679	Add to Cart	4 days	Indexable hardmetal(carbide)inserts with wiper edges, without fixing hole. Dimensions	Obsolete

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Basic data

Standard ID: GB/T 2081-2018 (GB/T2081-2018)
Description (Translated English): Indexable hard metal (carbide) inserts with wiper edges, without fixing hole -- Dimensions
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H72
Classification of International Standard: 77.160
Word Count Estimation: 18,168
Date of Issue: 2018-09-17
Date of Implementation: 2019-06-01
Older Standard (superseded by this standard): GB/T 2081-1987
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

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

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Indexable hardmetal(carbide) inserts with wiper edges, without fixing hole - Dimensions ICS 77.160 H72 National Standards of People's Republic of China Replace GB/T 2081-1987 Carbide with wiper and without fixing holes Indexable milling insert size Dimensions (ISO 3365.2016, IDT) Published on.2018-09-17 2019-06-01 implementation State market supervision and administration China National Standardization Administration issued

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. The main drafters of this standard. Wang Yuzhong, Chen Ying, Zhou Hongcui, Jiang Tao, Cao Wanli, Liang Hong, Deng Tao, Fan Zhirui, Zhang Yue. The previous versions of the standards replaced by this standard are. ---GB/T 2081-1980, GB/T 2081-1987. Carbide with wiper and without fixing holes Indexable milling insert size

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 Εr φ 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 Εr φ ±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 Εr φ 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 Εr φ ±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 Εr ±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 Εr φ 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 Εr φ ±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 Εr φ 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 Εr φ ±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 Εr φ 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 Εr φ ±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 Εr ±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 φ with the back corner of the wiper The flank of a blade edge. ......

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