PSI - Issue 66

S. Skrobacz et al. / Procedia Structural Integrity 66 (2024) 11–25 S. Skrobacz¹², P. Krysi ń ski¹, S. Ma ł ys¹², T. Ł agoda², / Structural Integrity Procedia 00 (2025) 000–000

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weld quality class and inspection class must be specified on the welding drawing or in another related document. For the welds under examination, the quality classes are CP C2 and CT3 [14]. Table 1. Quality Levels According to Welding Defects for Aluminum and Aluminum Alloys in Accordance with EN ISO 10042 in Relation to the Weld Quality Class According to EN 15085-3 [14].

Type of Welding Defect According to EN ISO 10042 1.1, 1.2, 1.4, 1.5, 1.7, to 1.9, 1.15, 2.1, 2.3, 2.6, 2.10 1.6, 1.10, 1.11, 1.14, 1.16, 1.18, 2.2, 2.4, 2.5, 2.7 to 2.9, 3.1 1.12, 1.13, 1.17, 2.11, 2.12, 3.2 1.3

Weld Quality Class

CP A

CP B

CP C1/ CP C2/ CP C3

CP D

B

B

C

D D

Not Permitted

Not Permitted

Not Permitted

Not Permitted

B

C

D

Not Permitted

B

C

D

4.1

This Welding Defect Is Not Evaluated

Table 2. Type and Scope of Tests to be Conducted During Serial Production According to EN 15085-5 [15]

Surface Crack Detection Testing MT or PT

Visual Inspection VT

Weld Quality Class

Volumetric Testing RT or UT

CT 1 CT 2 CT 3 CT 4

100% a 10% a b

100% 10% b

100% 100% 100% 100%

Not Required Not Required

Not Required Not Required

The provided percentage shares refer to the total length of all welds. The following rules apply:

 100% means: inspection of all welds on all structural elements;  10% means: inspection of 10% of welds on all structural elements, or 100% inspection of one out of every ten structural elements.

The testing methods listed in Table 1 represent the minimum requirements for the examination of welded joints. Depending on the material, structure, or client requirements, additional testing may be necessary.

Each non-destructive testing method (RT, UT, MT, or PT) must be performed and documented by testing personnel certified according to EN 473.

For inspection classes CT 1 and CT 2 , visual inspections should be performed and documented by testing personnel certified according to EN 473.

For inspection class CT 3 , a minimum of visual inspections should be conducted by testing personnel qualified by the manufacturer, and these inspections should be documented.

For inspection class CT 4 , a minimum of visual inspections should be conducted by welders trained in visual inspections; documentation is not required.

Based on the above, the implementation of automated welding was initiated by programming each of the weld joints. The result of this work includes WPS/WPQR documents, which define the welding parameters specified for the selected structure [15]. To validate the newly established process, visual inspections and macrographic cross section examinations were conducted. These inspections, carried out in accordance with EN 15085 under weld quality