Quality Assurance in Welding: Module 5

Objective:

  Know the principles of basic NDT methods used in welding.

Scope:

• Revision of weld imperfections (ISO 65201)
• Revision of quality levels (ISO 5817)
• Checking dimensions, surface and distortion
• Surface inspection of cracks and other surface imperfections by visual testing (VT), penetrant testing (PT) and magnetic particle testing (MT)
• Detectability of internal imperfections of welds by radiographic testing (RT) and ultrasonic testing (UT)
• Destructive tests to measure mechanical properties of weld

Expected results:

• Perform simple visual inspection of welds to EN 970 and subsequently evaluate to ISO 5817.
• Identify the following destructive and nondestructive methods: bend tests, hardness tests, tensile tests and impact tests, VT, MT, PT, RT and UT.

List of Contents

1. Surface inspection on cracks and other surface imperfections by visual testing