It is commonly observed that complex fabricated structures subject to fatigue loading fail at the welded joints. Some problems can be corrected by proper detail design, but fatigue performance can also be improved using post-weld improvement methods.
Applied Ultrasonics specializes in providing engineered solutions to improve the reliability and extend the life of metal components and structures. Our philosophy is simple: provide high quality solutions, cutting-edge technology and expert consultative services.
We allow customers to save money by improving reliability and decreasing maintenance costs, to improve return on investment by extending asset life, and to enhance safety by improving mechanical and structural integrity.
Ultrasonic peening technology to maximize metal enhancement
Applied Ultrasonics delivers a patented, state-of-art ultrasonic peening technology: Ultrasonic Impact Technology (UIT). UIT uses ultrasonic energy to maximize metal improvement and enhancement, greatly extending the metal’s utility. Applied Ultrasonics has brought the benefits of UIT to a range of industries, including oil and gas, maritime, mining, highway infrastructure, defense and aerospace.
Improving fatigue life of metal components and structures
Applying Ultrasonic Impact Technology to metal components and structures is proven to provide superior fatigue life. Extending fatigue life gives the owner increased return on investment, especially on ageing assets. It does so while saving time and money spent on redesign, repair, or replacements. Our patented technology also enables designers and engineers to exceed factors of safety for fatigue; this allows projects to move forward to construction and commissioning.
Improving structural integrity and mechanical reliability
Whether it is a ship hull structure or a locomotive crankshaft, failure from stress or fatigue cracking is expensive and potentially catastrophic. Ultrasonic Impact Technology delays the onset of cracking from fatigue and stress and can prevent failure. UIT improves structural integrity and component reliability, giving the confidence to continue safely operating equipment.
Prevention of stress corrosion cracking in the oil and gas industry
Stress corrosion cracking (SCC) is a failure mechanism caused by the combined effects of tensile stress and a corrosive environment. SCC is prevalent and costly in the oil and gas industry, due to the corrosive fluids, high pressures, and high temperatures downhole.
Ultrasonic Impact Technology conveys deep, targeted compressive residual stress to metal components and prevents the onset of stress corrosion cracking. UIT also yields cost savings from better reliability and reduced repair and replacement costs. Additionally, operators and contractors can maximize uptime when drilling and producing, which directly increases revenue.
Increasing the resistance of metal to wear and abrasion
Ultrasonic Impact Technology strengthens metals through cold work, plastically deforming the surface and imparting compressive residual stress. These processes increase surface hardness, providing increased resistance to wear and abrasion. Improved wear properties will extend life and increase return on investment. Longer lasting components provide cost savings on spares, repairs and replacements parts.
Stress relief and distortion control to save on fabrication costs
Numerous rules and standards, including the American Bureau of Shipping (ABS) and the American Welding Society (AWS), recognize peening to control shrinkage stresses, prevent cracking, and mitigate distortion.
Ultrasonic Impact Technology is the best controlled and most efficient peening technology available and is exceptionally well-suited for interpass treatment of welds because the ultrasound refines grains and relieves tensile stress. Especially for extra-high strength steels prone to hydrogen cracking, UIT will improve the quality of welds, reduce additional work and save on fabrication costs.
Strengthen your business with Ultrasonic Impact Technology. Contact us for a free consultation.
Noble Drilling retained Applied Ultrasonics to employ ultrasonic impact technology to treat the structure of one of their ABS classified semi-submersible offshore drilling rigs deployed in the North Sea, the Ton van Langeveld.
Applied Ultrasonics has released two free white papers on Offshore Technology.
The operating environments for today's offshore oil and gas industry are becoming increasingly more challenging due to deeper depths that result in higher-pressure operating conditions.
A large multinational offshore drilling company was facing a major maintenance overhaul for a semi-submersible. The company reached out to Applied Ultrasonics for a solution to minimise hydrogen embrittlement cracking and to ensure optimum weld quality assurance was maintained on critical structures and weld joints.
The specs for the new design-build of an offshore structure called for enhanced fatigue performance from critical tubular components. A major obstacle of the project was that standard approaches to improving fatigue performance were deemed insufficient due to water depth, pressure and the regulatory environment.
New designs always bring unforeseen problems. For one such client, a cutting-edge, mid-sized defense cutter was no exception.
A large multinational offshore drilling company contacted Applied Ultrasonics seeking to improve the durability and reliability of a derrick structure.
Fatigue is a fact of life in high-cycle components. However, fatigue failure does not have to be.
In 2012, an offshore oil production and services client turned to Applied Ultrasonics for a third time due to rapid growth of their project in Phoenix.