News

PAS Technologies Signs MOU with Lambda Technologies

October 16, 2008 - (Excerpt) PAS Technologies and Lambda Technologies have signed a memorandum of understanding (MOU) focused on the marketing, R&D and production of Lambda’s Low Plasticity Burnishing (LPB) proprietary process as an integral element of the maintenance, repair and overhaul operations within the PAS Technologies’ capabilities arena.

Lambda Technologies’ Paper Wins 2007 Best Application Paper Award from American Society of Mechanical Engineers.

August 8, 2008 - (Excerpt) The paper entitled “Mitigation of Fretting Fatigue Damage in Blade and Disk Pressure Faces with Low Plasticity Burnishing,” written by Paul S. Prevéy and Narayanan Jayaraman of Lambda Technologies along with Ravi A. Ravindranath of NAVAIR and Dr. Michael Shepard of the Air Force Research Laboratory has received the 2007 Best Application Paper Award from The International Gas Turbine Institute of The American Society of Mechanical Engineers.

Logistics-friendly, Low Plasticity Burnishing (LPB) supported by FDA data as a guardian of metal components.

On-site, surface enhancement process eliminates fatigue failures according to device experience database.

July 25, 2008 - (Excerpt) Recent U.S Food and Drug Administration (FDA) data, comprised of reported “adverse events” to orthopedic implants, reveals that Low Plasticity Burnishing (LPB) eliminates the occurrence of fretting fatigue failures in modular hip implants. LPB treatment is a surface enhancement process that can be performed at the product manufacturer's site using existing CNC machines with 100% continuous, quality control monitoring. Originated and developed by Cincinnati’s Lambda Technologies, LPB is a proven surface treatment that develops a deep layer of high magnitude compressive residual stress (RS) to improve fatigue strength and damage tolerance as well as mitigate stress corrosion cracking (SCC) in critical metallic components.

U.S. Congressman Steve Chabot visits Lambda Technologies to discuss transitioning Low Plasticity Burnishing (LPB) to additional military and commercial clients.

Ranking Member of the House of Representatives Small Business Committee is provided with a production tour and demonstration of the F402 LPC1 Vane cost-cutting program.

May 30, 2008 - Excerpt) U.S. Congressman Steve Chabot (R), 1st District of Ohio, visited Lambda Technologies on Tuesday, May 27, 2008 for a tour, production demonstration and technical briefing regarding the exciting surface enhancement work being accomplished by the Cincinnati-based company. A walking tour of Lambda's Laboratory Services and Surface Enhancement Technologies facilities was hosted by Lambda Technologies CEO and Director of Research, Paul S. Prevey. Mr. Chabot witnessed a Low Plasticity Burnishing (LPB) demonstration of Lambda's successful production program to improve foreign object damage (FOD) tolerance and high cycle fatigue endurance limits while completely mitigating cracking of the Ti-6Al-4V Alloy F402 First Stage Low Pressure Compressor (LPC1) Vane used in the AV-8B Harrier II.

Lambda Technologies patents method of residual stress design for enhanced fatigue strength.

Technology will assist designers in producing more durable, longer lasting components.

September 24, 2007 - (Excerpt) Lambda Technologies has been issued a U.S. patent for their revolutionary method of designing beneficial, compressive residual stresses (RS) into metallic components for enhanced fatigue performance. This patented methodology will significantly influence the implementation of compressive residual stresses in metallic components used in many industries critical to the U.S. economy and its’ national security such as the aerospace, automotive, medical implants, and power generation markets. In the absence of a proper residual stress design, surface enhancement processes can produce little improvement in fatigue strength, high compensatory tensile stresses and/or unacceptable distortion. U.S. Patent No. 7,219,044 entitled “Method and System for Improving a Part’s Resistance to Stress Induced Failure” pertains to a detailed design protocol developed to allow the compressive residual stress to be tailored for a given component. The protocol comprises of a series of successive design steps that ultimately allow the engineer to converge on a unique compressive residual stress field for a given application.

Lambda Technologies awarded contract to improve the fatigue life of components found on the V-22 Osprey.

Armed services tilt-rotor aircraft to benefit from Low Plasticity Burnishing (LPB).

August 14, 2007 - (Excerpt) Surface Enhancement Technologies (SET), a division of Lambda Technologies, has been awarded a Phase II SBIR contract from the Naval Air Systems Command (NAVAIR), to improve the fatigue life of select, dynamic rotorcraft components found on the V-22 Osprey by implementing their patented Low Plasticity Burnishing (LPB) process. Working in partnership with subcontractor, Bell Helicopter Textron, Inc., SET will showcase it’s surface treatment prowess by developing a program to enhance the V-22’s fatigue critical components while surpassing conventional and limited surface treatments, such as shot peening. SET’s scope of services range from the testing of the metal component’s base material to conducting the cost-benefit analysis necessary to smoothly transition the LPB processing of the components into production.

Low Plasticity Burnishing (LPB) document released detailing improvements to engine vane used in AV-8B Harrier II.

Application Note illustrates surface enhancement program to reduce the total cost of ownership and operation of the F402-RR-408 turbofan engine.

June 6, 2007 - (Excerpt) Lambda Technologies has released a Low Plasticity Burnishing (LPB) Application Note detailing their successful program to improve foreign object damage (FOD) tolerance and high cycle fatigue endurance limits while completely mitigating cracking along the trailing edge of the Ti-6A1-4V Alloy F402 First Stage Low Pressure Compressor (LPC1) Vane used in the AV-8B Harrier II.

U.K. Patent Office decision sets stage for Lambda Technologies to enter European market.

British authorities revoke European patent assigned to Ecoroll AG of Germany.

May 10, 2007 (Excerpt) The Patent Office of the United Kingdom has announced the revocation of European patent EP(UK) 0353376 entitled “Burnishing Tool” and assigned to Ecoroll AG Werkzeugtechnik of Germany. The decision to revoke EP(UK) 0353376 was based on Ecoroll’s failure to promptly seek leave to amend the European application in view of prior art that Ecoroll was made aware of during the prosecution of the equivalent U.S. application. The revocation of EP(UK) 0353376 eliminates any impediment to Lambda’s patented Low Plasticity Burnishing (LPB) Technology and associated tooling and sets the stage for Lambda to enter the European market. Lambda Technologies patent upheld against Ecoroll Corp. Tool Technology challenge. U.S. Patent and Trademark Office reexamines and reaffirms Lambda’s surface enhancement technology. May 4, 2007 (Excerpt) Cincinnati-based, Lambda Technologies is pleased to announce that the U.S. Patent and Trademark Office has completed its reexamination of Lambda Technologies’ patent No. 5,826,453, named “Burnishing Method and Apparatus for Providing a Layer of Compressive Residual Stress in the Surface of a Workpiece” and confirmed the patentability of all 20 claims contained therein. Patent No. 5,826,453, issued on October 27, 1998, protects Lambda’s breakthrough method of improving the surface of metal components known as Low Plasticity Burnishing (LPB). Between 2003 and 2005, Ecoroll Corp. Tool Technology of Milford, Ohio, an affiliate of Ecoroll AG Werkzeugtechnik of Germany, initiated a series of challenges to the validity of Lambda’s patented burnishing technologies in the U.S. Patent and Trademark Office. The latest of these disputes was filed in October of 2005 and tested the validity of patent No. 5,826,453. The U.S. Patent and Trademark Office found all claims to be “patentable over the applied art of record.”

Lambda Technologies completes research to eliminate SCC in C-17 fleet.

Military-transport aircraft will take-off and land safer with the application of the patented Low Plasticity Burnishing (LPB) surface treatment process.

December 11, 2006 - (Excerpt) Cincinnati-based, Lambda Technologies has completed a research program detailing their successful solution to restoring and improving the damage tolerance and eliminating stress corrosion cracking (SCC) in a vital component of the Boeing C-17’s main landing gear. Through the combined use of Low Plasticity Burnishing (LPB) with current manufacturing methods, Lambda Technologies, in conjunction with Boeing and the Air Force Research Laboratory (AFRL), has developed, qualified, and demonstrated that LPB mitigates SCC and improves the damage tolerance of the C-17’s main landing gear.