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GB/T 39166-2020Test method of mechanized peel for resistance spot, projection and seam welds (English PDF)

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

October 11, 2020

Implementation date

May 1, 2021

Scope

GB/T 39166-2020 (Test method of mechanized peel for resistance spot, projection and seam welds) is available as an English-translated PDF.

GB/T 39166-2020 is the Chinese standard "Test method of mechanized peel for resistance spot, projection and seam welds".

Its scope clause reads: This standard specifies the mechanical peeling test equipment, test equipment and test equipment for the single welding point (weld seam) of resistance spot welding, projection welding and seam welding of metallic materials.

Samples, test procedures, repeated tests and test reports. This standard applies to metal plates with a thickness of 0.5mm~5.0mm, a maximum solder joint diameter of 7t and less than 12mm (t is the plate thickness, when the plate thickness is At different times, t is the thickness of the thinner plate) resistance welding joint. Its clauses include terms and definitions.

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Document preview — GB/T 39166-2020

National Standard of the People's Republic of China

ICS: 25.160.40
Classification: J 33

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

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Equipment
5 Sample
6 Test procedure
7 Repeat test
8 Test report
Appendix A (informative appendix) Structural changes of this standard compared with ISO 14270.2016
Appendix C (informative appendix) The influence of solder joint position on test results
Appendix D (informative appendix) Example of bending method
Appendix E (informative appendix) Measurement of bending center position of bending system
Appendix F (Normative Appendix) Seam Welding Dimensions Measurement

1 Scope

This standard specifies the mechanical peeling test equipment, test equipment and test equipment for the single welding point (weld seam) of resistance spot welding, projection welding and seam welding of metallic materials.

Samples, test procedures, repeated tests and test reports.

This standard applies to metal plates with a thickness of 0.5mm~5.0mm, a maximum solder joint diameter of 7t and less than 12mm (t is the plate thickness, when the plate thickness is

At different times, t is the thickness of the thinner plate) resistance welding joint.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article

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

GB/T 3375 welding terminology

GB/T 16825.1 Inspection of static uniaxial testing machine Part 1.Inspection and calibration of force measuring system of tensile and (or) compression testing machine

Standard (GB/T 16825.1-2008, ISO 7500-1.2004, IDT)

3 Terms and definitions

The following terms and definitions defined in GB/T 3375 apply to this document.

3.1 Mechanical peel test

Mechanical equipment is used to apply the peeling force acting in the thickness direction of the solder joints to conduct destructive tests of resistance welding lap joints.

3.2 Mechanical peel force

The force applied to the specimen during the mechanical peel test.

3.3 Multi-spot welding

Spot welding of two or more welding points with two or more pairs of electrodes at the same time or according to automatic control procedures.

3.4 Solder joint diameter

After the destructive test, without the help of metallographic inspection, the average diameter of the melting area measured on the bonding surface.

3.5 Minimum seam welding width

During seam welding, the minimum nugget width measured on the bonding surface.

GB/T 40741 | GB/T 37778 | GB/T 37910.1 | GB/T 39167 | GB/T 39165 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 30 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 7500

Cited by

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