Several fastener specifications require 100 per cent metal identification on finished parts. This is to prevent material mixups during manufacturing, and is not a chemical composition check but simply a check for the right grade of material.
To my knowledge, the only possible method is by eddy...
I would like some feedback from fastener manufacturers on the following points concerning (external) thread gaging :
- Has anyone experienced different results (i.e. same thread being conform or not conform) when using a) standard ring gage, b) adjustable ring gage c) roller type snap gage...
Has anyone any experience of molybdenum disulfide (MoS2) dry lube, in its baked (heat-polymerized) version, taking up humidity from humid atmospheres, thereby increasing its friction coefficient ? Increase in apparent friction factor during fastener torque/tension characterization tests has been...
