Galling can occur even if the parts are brought together slowly, and it is prevented by the presence of grease or surface coatings, even if the surface coatings increase friction. It does not occur when joining dissimilar materials (e.g., threading 18-8 stainless steel into 17-4 stainless steel) even though both of those materials are susceptible to galling.
In metalworking that involves cutting (primarily turning and milling), galling is used to describe a phenomenon which often occurs when cutting soft metal: the worked material sticking to the cutter. It often occurs with aluminum and is a common cause of tool breakdown. When a soft material sticks to the cutting edges the effective surface area of the cutter increases. Therefore, to achieve the pressure needed to cut the workpiece, a greater force is needed resulting in more wear or breakage of the cutting tool.
Black Oxide Finish protects tools against corrosion, galling.(Tooling & Fixturing Devices are Protected from Corrosion & Galling with TRU TEMP[R] Low Temp Black Oxide)
Jun 11, 2010; Helping tooling designers achieve durable and protective finish, TRU TEMP[R] has total process time of 25 min and can be safely...
Lubrication Pads maintain punched parts edge quality.(New Mate Eliminator(TM) (Patents Pending) Lubrication Pads Eliminate Galling While Maintaining Punched Parts Edge Quality)
Feb 01, 2012; Eliminator(TM) lubrication pads provide continuous lubrication to punch tip throughout punching process, reducing heat buildup...