David Lahrman is a certified trainer for Metal Finishing News International (MFN). David provides insights and instruction on metal finishing for this worldwide network, and he wrote a feature article for the July 2017 issue of MFN Magazine.
MFN International – July Issue – 2017
Laser shock peening is a powerful, targeted method for enhancing metal fatigue strength using high-energy laser pulses. Like shot peening, laser peening imparts beneficial compressive residual stresses in the surface of a component to impede crack initiation and propagation. Unlike shot peening, laser peening is only applied to fatigue-critical areas to provide enhanced resistance where parts are most susceptible to failure. Laser peening is commonly applied along the edges of compressor turbine airfoils to protect against foreign object damage and erosion, or applied along the dovetail root to prevent fretting fatigue, stress corrosion cracking and fracture.
LSP Technologies is featured in the May/June issue of Industrial Laser Solutions magazine. This feature length article from LSPT founder Jeff Dulaney highlights the origins of laser peening, the basics of the process, and the next generation of diode-pumped Procudo® Laser Peening Systems.
Laser Peening Enhances Fatigue Life
New diode-pumped system brings laser peening to the factory floor
Material enhancement has long been at the leading edge of technological innovation. Powerful machines require robust components, but material limitations present a critical obstacle to performance optimization. Laser shock peening (LSP) resides at the forefront of material enhancement, employing high-energy lasers to generate deep compressive residual surface stresses for proven metal fatigue resistance. Laser peening has been implemented by original equipment manufacturers (OEMs) in the aviation and power generation industries to enhance their products’ resistance to cracking caused by fretting, corrosion, foreign object damage, and fatigue. Now, after nearly fifty years of technological advancement, the first line of turn-key industrial laser peening systems is integrating the technology into manufacturing facilities around the world.
Click here to read the full article.
LSP Technologies is featured in the Spring 2017 issue of Wire Forming Technology International (WFTI).
The article, Laser Peening System for Metal Fatigue Enhancement highlight’s LSPT’s new Procudo® 200 Laser Peening System, and recent expansion into the Chinese metal improvement market.
WFTI is a quarterly technical publication covering the manufacture of springs, wire formed parts, wire mesh and rebar products and the materials, tooling, machinery and control systems for making and using those parts.
Click Here to read the full article and flip through a digital copy of the magazine.
Contact Us to learn more about LSP Technologies’ laser peening production services and state-of-the-art equipment.
Metal Finishing News International published an interview with LSPT Chief Operating Officer Eric Collet in their January 2017 issue. Read the full transcript below, or click here for the original article.
Diode-Pumped Laser Peening Equipment Signals Future of Fatigue Enhancement
Eric Collet, Chief Operating Officer at LSP Technologies since May 2016, has a degree in Industrial and Systems Engineering and a Master’s in Business Administration.
Eric, tell us a little about your background and your work at LSP Technologies?
Eric Collet, Chief Operating Officer at LSP Technologies
I have spent 25 years working in operations, business development, consulting and engineering roles, helping companies in the aerospace and other industries achieve rapid and sustainable growth. I am very excited to join LSPT as COO to spearhead our push toward deeper market saturation of the surface enhancement industry with laser peening. It is a very exciting time in the business as we rapidly scale both our laser peening equipment sales and our in-house laser peening production services, largely driven by the new Procudo® Laser Peening System that we have developed.
Tell us a little about LSP Technologies?
LSPT was established in 1995 in Columbus, Ohio, and is the premiere provider of laser peening services and equipment in the United States. Our team has over 250 years of combined laser peening experience, as well as over 50 patents associated with laser peening. We are an AS9100 registered company that performs laser peening production, application development, contract R&D, and peen forming, as well as manufactures laser peening systems. LSPT is the only laser peening company in the world that is selling, installing, and integrating a fully-licensed, state-of-the-art laser peening system into customer facilities.
What is laser peening?
David Lahrman, VP Business Development, wrote this article on fatigue failure analysis for MFN International, March 2016. You can view it online here.
The analysis of fatigue failure using a scientific method and as an emerging field of study originates in 1842 with the investigation of the catastrophic failure of the Versailles frail accident in Meudon, France. The axle on the leading locomotive broke during a run and the carriages behind the locomotive piled into it and caught fire. More than 55 people were killed. William John Macquorn Rankine, a mechanical engineer, investigated the broken axle to understand the cause of failure. Rankine highlighted the importance of stress concentration factors in components and the impact of repeated cyclic stress on these areas that lead to the component’s failure. Unfortunately, the idea he and others proposed at this time for the progressive growth of cracks due to repeated cycling of the load was ignored by other engineers. William Fairbairn shortly thereafter demonstrated the effect of fatigue on repeated flexure on large beams. Fatigue continued to remain a serious and misunderstood phenomenon for some period of time.