TB/T 2911-2016 in English

ChinaStandards.net is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.

This standard is developed in accordance with the rules given in GB/T 1.1-2009.

This standard replaces TB/T 2911-1998 General Technical Specification of Riveting Process for Vehicle. The following technical changes have been made with respect to TB/T 2911-1998 (the previous edition):

——The terms and definitions are added (see Chapter 3);

——The types of lockbolts are added (see 4.1.2 and Annex A);

——The material standard for common steel rivets is modified, and those for common aluminum rivets, copper rivets and lockbolts are added (4.1.3; and 3.1.3 in Edition 1998);

——The through-hole requirements of common rivets are added (see 4.2.1.1);

——The requirements for the rivet hole of lockbolts are added (see 4.2.1.2);

——The requirements for the quality of rivet hole are added (see 4.2.1.4);

——The executive standard for the unnoted tolerance of rivet hole are modified (see 4.2.1.5; and 3.2.2 in Edition 1998);

——The distance deviation of rivet hole is deleted (see 3.2.2 in Edition 1998);

——The requirements for the roundness tolerance of lockbolt hole are added (see 4.2.1.7);

——The requirements for the diameter repair limit of lockbolt hole are added (see 4.2.1.8);

——The annex concerning "requirements for post-riveting riveting quality inspection and over-limit treatment" are added (see 5.1.4 and Annex B);

——The riveting method of common aluminum and copper rivets are added (see 5.2.5);

——The technical requirements for the riveting process of lockbolt are added (see 5.3);

——The technical requirements for the riveting process of reusable lockbolts are added (see 5.4);

——The technical requirements for the riveting process of bobtail lockbolt are added (see 5.5);

This standard was proposed by and is under the jurisdiction of CRRC Qishuyan Locomotive & Rolling Stock Technology Research Institute Co., Ltd.

Previous editions of this standard are as follow:

——TB/T 1584-1985;

——TB/T 1585-1985;

——TB/T 2911-1998.


General Technical Specification of Riveting Process for Railway Vehicle

1 Scope

This standard specifies terms and definitions, pre-riveting technical requirements, technical requirements and riveting quality inspection of riveting process for railway vehicle.

This standard is applicable to the riveting process of railway vehicle in adoption of common rivets and lockbolt; in case of other types of rivets, it may also be referred to for reference.

2 Normative References

The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.

GB/T 152.1 Fasteners - Clearance Holes for Rivets
GB/T 699 Quality Carbon Structural Steels
GB/T 863.2 Round Head Rivets with Small Head - Black
GB/T 865 Countersunk Head Rivets - Black
GB/T 867 Round Head Rivets
GB/T 1804-2000 General Tolerances - Tolerances for Linear and Angular Dimensions without Individual Tolerance Indications (eqv ISO 2768-1: 1989)
GB/T 3077 Alloy Structure Steels
GB/T 3195 Aluminum and Aluminum Alloys Drawn Round Wire
GB/T 21652 Copper and Copper Alloy Wire
YB/T 4155 Hot-rolled Round Carbon Steel Bars and Rods for Standard Parts

3 Terms and Definitions

For the purpose of this document, the following terms and definitions apply.

3.1

pull-riveting

a fastened connection mode to tightly couple the rivet and collar by pressing the collar into the circular locking groove of the rivet

3.2

lockbolt

the assembly of rivet and collars, which is obtained by pull-riveting

4 Pre-riveting Technical Requirements

4.1 Rivet

4.1.1 Common rivets shall be in accordance with those specified in GB/T 863.2, GB/T 865 and GB/T 867.

4.1.2 The rivet and collar of lockbolt shall be in accordance with those specified in relevant standards and product drawings. See Annex A for the types of rivets and collars.

4.1.3 The rivet material shall be in accordance with the following requirements:

a) The material of common steel rivet shall be in accordance with those specified in YB/T 4155;

b) The material of common aluminum rivet shall be in accordance with those specified in GB/T 3195;

c) The material of common copper rivet shall be in accordance with those specified in GB/T 21652;

d) As for lockbolt, the materials of rivet and collar shall be in accordance with those specified in GB/T 3077 and GB/T 699 respectively.

4.1.4 The rivet length specified in the product design drawing is one of the main bases for production, ordering and spare part preparation. However, during the riveting and assembly of common rivet, the rivet length shall be determined according to the result of riveting process test so as to ensure the forming dimension of the height and diameter of the rivet tail.

4.2 Riveted part

4.2.1 Rivet hole

4.2.1.1 The hole of common rivet shall be in accordance with those specified in GB/T 152.1.

4.2.1.2 The hole of lockbolt shall be in accordance with the following requirements:

a) See Table 1 for the diameter of rivet hole for rivet of LMB type;

b) See Table 2 for the diameter of rivet hole for rivet of LMB, LMP and LMC types;

c) See Table 3 for the rivet hole diameter of reusable rivets of LMPL, LMLL, LMYL, LMPC, LMLC and LMYC types as well as bobtail of LMDY, LMDM, LMDP, LMDC and LMDH types.

Table 1 Diameter of Rivet Hole for LMB Type Rivet In: mm
Nominal diameter of rivet d 4 6 8 10 12 16
Rivet hole diameter d1 5.3~5.6 7~7.4 8.8~9.3 10.5~11.1 13.9~14.8 17.5~18.5

Table 2 Diameter of Rivet Hole for LMY, LMP and LMC Type Rivets In: mm
Nominal diameter of rivet d 5 6 8 10 12 16 20 22 24 25 28
Rivet hole diameter d1 5.0~5.2 6.6~6.8 8.2~8.6 9.8~10.3 13.5 17.5 22 24 26 27 30

Table 3 Diameter of Rivet Hole for Reusable Rivets and Bobtails In: mm
Nominal diameter of rivet d 12 16 20 22 24 25 28
Rivet hole diameter d1 13.5 17.5 22 24 26 27 30

4.2.1.3 The rivet hole shall not be made through gas cutting, arc cutting and the like.

4.2.1.4 The wall of the rivet hole shall be free from burrs, notches, cracks and metal filings.

4.2.1.5 The unnoted tolerance for the rivet hole diameter shall be in accordance with those specified in Grade m in GB/T 1804-2000.

4.2.1.6 The surface of rivet hole shall be MRR Ra50 in roughness.

4.2.1.7 During the riveting of riveted part of three layers or above, the roundness tolerance of rivet hole shall be in accordance with the following requirements:

a) The roundness tolerance of rivet hole for common rivet shall be in accordance with those specified in Table 4;

b) The roundness tolerance of rivet hole for lockbolt shall be in accordance with those specified in Table 5.

Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Pre-riveting Technical Requirements
5 Technical Requirements for Riveting Process
6 Riveting Quality Inspection
Annex A (Informative) Type of Lockbolt
Annex B (Normative) Riveting Quality Inspection and Over-limit Treatment