Canada Department of Energy, Mines and Resources, 1969
The investigation conducted on the fractured bolts showed evidence of failure by fatigue, not by over-torquing. The material met the requirements for SAE 8640.
Canada Department of Energy, Mines and Resources, 1966
The material in the punch was a shock-resisting tool steel similar to Atlas Steel's Falcon 6 grade. The punch contained a longitudinal crack-like defect, which...
Canada Department of Energy, Mines and Resources, 1966
The tools are susceptible to fatigue failure originating at high stress concentration points in the fillet regions. The life of the tools could be extended by...
Canada Department of Energy, Mines and Resources, 1965
The tubing used in the manufacture of the soil sampler submitted was found to be similar to welded tubing conforming to ASTM specification A178-61, Grade A,...