GB/T 2079-2015Indexable hard metal (carbide) inserts with rounded corners, without fixing hole -- Dimensions (English PDF)

Foreword

This Standard was drafted as per the rules specified in GB/T 1.1-2009.

This Standard replaced GB/T 2079-1987 Indexable Hardmetal (Carbide) Inserts

without Hole.

Compared with GB/T 2079-1987, this Standard mainly has the following changes.

--- Change the standard name into Indexable Hardmetal (Carbide) Inserts with

Rounded Corners, without Fixing Hole; Dimensions;

--- Delete the original Chapter 2, 3, 4;

--- Add Chapter 2 "Normative References"; Chapter 3 "Types of Insert"; Chapter

4 "Interchangeability"; Chapter 5 "Designation and Marking"; and Chapter 6

"Measurement";

--- Modify the original Chapter 1 "Model, Dimension and Allowable Deviation"; add

Chapter 7 "Recommended Dimension";

--- Modify the schematic diagram; combine the original Table 1~6 into Table 1 and 2;

only remain the basic dimension; modify the normative tolerance into

recommended tolerance; cancel the dimension specification of the Second

Recommended Model SPUN150408;

--- Modify the normative "Appendix A" into informative "Appendix B"; add new

"Appendix A", "Appendix C", and "Appendix D";

--- Add the "Bibliography".

This Standard's translation equivalently adopts ISO 883L.2013 Indexable Hardmetal

(Carbide) Inserts with Rounded Corners, without Fixing Hole; Dimensions (English

Edition).

Chinese documents that have consistent relationship with the international documents

in the normative references of this Standard are as follows.

--- GB/T 2075-2007 Classification and Application of Hard Cutting Materials for M

Metal Removal with Defined Cutting Edges - Designation of The Main Groups

and Groups of Application (ISO 513.2004,IDT)

--- GB/T 2076-2007 Indexable Inserts for Cutting Tools – Designation (ISO

1832.2004,MOD)

This Standard was proposed by China Non-Ferrous Metal Industry Association.

Indexable Hardmetal (Carbide) Inserts with Rounded

Corners, without Fixing Hole – Dimensions

1 Scope

This Standard specifies the dimensions of indexable hardmetal (carbide) inserts with

rounded corners, without fixing hole.

This Standard is applicable to the indexable hardmetal (carbide) inserts with rounded

corners, without fixing hole.

2 Normative References

The following documents are essential to the application of this document. For the

dated documents, only the versions with the dates indicated are applicable to this

document; for the undated documents, only the latest version (including all the

amendments) are applicable to this document.

ISO 513 Classification and Application of hard Cutting Materials for Metal

Removal with Defined Cutting Edges – Designation of the Main Groups and

Groups of Application

ISO 1832 Indexable Inserts for Cutting Tools – Designation

3 Types of Insert

The types of indexable hardmetal (carbide) inserts specified in this Standard are the

following.

— TN. triangular inserts, with 0° normal clearance;

— TP. triangular inserts, with 11° normal clearance;

— SN. square inserts, with 0° normal clearance;

— SP. square inserts, with 11° normal clearance.

Inserts with 0° normal clearance (TN and SN) are standardized only without chip

breakers. Inserts with 11° normal clearance (TP and SP) are provided with and

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