37:05

Lec 39 - Cracking of Welded Joints I: Solidification and liquation Cracks

5:56

Welding Defects, their appearance and identification, AWS CWI and CSWIP practical Exam Part 1

49:12

Lecture 3: Parts of weld joint

49:47

Lecture 5: Welding power source - 1

21:07

QC and QA Professional Seminar

8:11

WELDING DEFECTS- Porosity, cracks, undercut, lack of fusion, arc strike, underfill, LOF

30:16

Lec 40 - Cracking of Welded Joints II: Cold Cracks

17:19

Henri Bergson, o filósofo que desafiou Einstein e mudou a discussão sobre natureza do tempo