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BS EN ISO 18278-1:2022

BS EN ISO 18278-1:2022

$142.49

Resistance welding. Weldability – General requirements for the evaluation of weldability for resistance spot, seam and projection welding of metallic materials

Published By Publication Date Number of Pages
BSI 2022 26
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This document specifies procedures for assessing the generic weldability for resistance spot, seam and projection welding of uncoated and coated metals. The purpose of the tests described in this document are to a) compare the metallurgical weldability of different metals, b) assess the weldability of differing component designs, e.g. dimensional configuration, stack-up, projection geometry, etc., c) investigate the effect of changes in welding parameters such as welding current, weld time, electrode force or complex welding schedules including pulse welding, current stepping etc. on weldability, and/or d) compare the performance of resistance welding equipment. Precise details of the test procedure to be used depend on which aspect of items a) to d) will be evaluated relative to the welding result obtained.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 European foreword
Endorsement notice
9 Foreword
10 1 Scope
2 Normative references
11 3 Terms and definitions
13 4 Weldability
4.1 Weldability of a component
4.1.1 General
14 4.1.2 Metallurgical weldability
4.1.3 Operative weldability
4.1.4 Constructional weldability
4.2 Criteria for the evaluation of weldability
15 5 Preparation of welding equipment
5.1 Welding machine
5.2 Welding electrodes
5.2.1 General
5.2.2 Spot welding
5.2.3 Seam welding
5.2.4 Projection welding
16 5.3 Measurement of parameters
5.3.1 Welding current
5.3.2 Electrode force
6 Test procedures
6.1 General
6.2 Basic test procedures
6.2.1 Essential variables
6.2.2 Welding current range test
17 6.2.3 Electrode life test
18 6.2.4 Weldability lobe test
19 6.3 Evaluation of weld properties
6.3.1 General
6.3.2 Shop floor tests
6.3.3 Tensile shear testing
20 6.3.4 Mechanized peel testing
6.3.5 Cross-tension testing
6.3.6 Macro-sections and hardness test
6.3.7 Further weld properties
7 Test report
7.1 General
7.2 Welding current range test
21 7.3 Electrode life test
7.4 Weldability lobe test
23 Annex A (informative) How to evaluate the mass and friction of the welding head
24 Bibliography

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BS EN ISO 18278-1:2022
$142.49