Search results for Hill Engineering blog posts under the subject category hole drilling
by Camille Fowler
We recently learned that some hole drilling method and contour method results were highlighted in the August 2022 issue of Railway Track and Structures. The article is titled Residual stress investigation of ultrasonic impact treated and untreated thermite welds.
Continue reading Hill Engineering featured in Railway Track & Structures – August 2022
by Adrian DeWald
The inner diameter of pipes is a critical location for design and performance assessment. Corrosion, fatigue, and stress corrosion cracking often attack the pipe inner diameter, which can lead to leakage and possible failure of the system. Tensile residual stresses in welded pipe joints can have a significant impact on structural integrity and performance because they accelerate crack initiation and growth. In engineering design, understanding the magnitude and distribution of residual stresses on the pipe inner diameter allows accurate structural assessment and planning for inspection. Measuring residual stress on the pipe inner diameter is challenging and provided a unique opportunity to express our commitment to innovation. Continue reading Residual stress measurement inside a welded pipe