Drill string assemblies are complex, sophisticated, and utterly essential systems in the oil and gas industry, down to the smallest parts. The importance of the connections that keep these systems ...

Cold rolling has detrimental effect on the formability of sheet metals. It is, however, inevitable in producing sheet high quality surfaces. The effects of cold rolling on the forming limits of ...

In order to address the vertical vibration phenomenon of the working roll during the rolling process, taking into consideration the nonlinear factors of the rolling interface and the roll system, this ...

At-a-Glance: Cold Root Rolling (CRR) plastically works thread roots at room temperature to induce compressive residual stress and increase root radius, cutting stress concentration and delaying crack ...