We use a 5/16" thick 110 ksi min. yield hss material formed into a rectangle and resistance welded to form a frame rail. A pair of these tubes combined with cross members makes up a chassis. We are experiencing localized fracture in the throat of the weld initiating at the weld crown. Starts...
We have run into an interesting failure with this thread that is at the end of a small hydraulic cylinder. 90% of the failure is brittle cleavage, however 10% at thread root initiation is dimple rupture. We believe that the cyclinder experience impact loading, but why would it initiate through...
I have always been under the assumption that HRPO defined a hot rolled product whose surface was completely free of mill scale in preparation for painting. We have been discovering that internationally this may not be the case. We received some Domex that was reportedly HRPO and it was dry...
What is the industry rule of thumb for assembly of painted parts. Is prime to prime acceptable, e-coat to e-coat, what about prime and topcoat to prime and topcoat. And does anyone one have an opinion on Chemical Agent Resistant Coatings used in military applications. Is it acceptable to bolt...
