railway RRB JE (CBT I + CBT II) Mock Test 2024 Production Engineering (Manufacturing) Joining Soldering and Brazing
Which of the following is not true for brazing?
1
Filler material must have low melting point
2
It causes the metallurgical damage by phase transformation
3
Gap between the parent material is filled by filler material
4
Gap between the parent material is filled by capillary action