By Michelle Froese | October 29, 2019
By Dr. Jody Muelaner
Galling occurs when threads are damaged by material sticking and getting torn off.Galling is a common type of damage that can occur in threads. When galling happens, it appears as though chunks of thread have been torn out and torn lumps of the removed material may be visible. It is caused by excessive friction or adhesion between mating threads. (…)
via What is thread galling and what causes it? | Fastener Engineering.