LSP Technologies Business Development Director, David Lahrman and Senior Metallurgical Engineer, Stan Bovid will be at the 2012 Aircraft Airworthiness & Sustainment Conference in  Baltimore, Maryland on April 2 to 5.  Stop by our new booth and talk to them about laser peening or laser bond inspection, two innovative laser technologies of which LSP Technologies is in the forefront.

This conference provides the opportunity to discuss the safety and sustainment issues of legacy fleets, the airworthiness issues of future aircraft and the transition between the old and new fleets.

Visit the conference website for more information about the event… http://www.airworthiness2012.com/index.html

LSP Technologies offers affordable laser peening services to improve the fatigue properties of our customer’s military, aerospace, power generation, tube forming, or other types of parts.  We collaborate with our customers to enhance their products with this innovative laser technology by increasing reliability, improving safety, and adding value.  We also provide an innovative non-destructive method of inspecting glue bonds in metals and/or composties that can detect “kissing bonds”. 

For a better picture of our capabilities follow the link below to one of our marketing brochures.  

LSP Trifold

Mr. David Lahrman will present a paper he co-authored entitled, “The LaserPeen™ Process and Emerging Applications”  September 12-15, 2011 at the 11th International Conference on Shot Peening.
ABSTRACT

“Laser peening has been demonstrated as a unique and valuable method to increase the resistance of aircraft gas turbine engine compressor and fan blades to foreign object damage (FOD) and improve high cycle fatigue (HCF) life.  Laser peening is also known as the LaserPeen^™ Process or laser shock processing (LSP).

 Laser peening drives a high amplitude shock wave into a material surface using a high-energy laser pulse.  The plastic deformation caused by the shock wave results in deep compressive residual stresses in the surface of the part.  The depth and magnitude of the residual stresses depend upon the material and the processing parameters.  Compressive residual stresses typically extend as deep as 0.040-0.060 inches (1.0 to 1.5 mm) below the surface and can approach the yield strength of the material.  These compressive residual stresses increase the resistance of materials to surface-related failures such as fatigue, fretting fatigue, and stress corrosion cracking.

 The successful use of laser peening on aircraft turbine engines blades is driving development efforts to expand the use of this technology to airframe structures, automotive gears, medical devices, nuclear systems, and general industrial applications.  The laser peening process is described and factors important for successful applications are discussed.”

Two additional papers are planned to be presented.  One by Yunfeng Cao and Yung C. Shin of the Center for Laser-based Manufacturing at Purdue University entitled, “Predictive self-closed modeling of laser shock peening and parametric study,” another by Anoop Vasu1 and Ramana V. Grandhi2 of the Department of Mechanical and Materials Engineering at Wright State University entitled, “Compressive Residual Stress Optimization in Laser Peening of a Curved Geometry.”  Follow the links below to read the abstracts for these two papers.

Predictive self-closed modeling of laser shock peening

Compressive Residual Stress Optimization in Laser Peening of

Laser peening also known as laser-peening or laser shock processing (LSP) increases the resistance of materials to surface-related failures such as, FOD, fatigue, fretting fatigue, and stress corrosion cracking.  It does this by driving compressive residual stresses into metals and alloys. 

Please stop by our booth, David Lahrman will be available for discussion about the benefits that laser peening surface enhancement technology can provide your parts to reduce their fatigue susceptibility.  See the beneifts of laser peening on our FAQs page at http://lsptechnologies.com/questions/.

David Lahrman will also be available to discuss Laser Bond Inspection.  It is LSP Technologies’ new NDE method to inspect adhesive bond joints in composites or other bonded materials.  LBI uses a localized stress wave created by a laser beam of high peak power with a short pulse to create an internal disbond in weak bonds that is detectable by the laser bond inspection system itself or by a post test ultrasonic inspection.

LSP Technologies, Inc. will be exhibiting at DMC 2011. We hope you will visit us at booth number 628.

November 28 – December 1, 2011
Anaheim, California
Anaheim Convention Center
Booth Number: 628

The DMC is the flagship defense manufacturing technology forum for exchanging ideas, assessing technical project progress and dealing with the challenges of the many new and traditional defense industrial base issues across the services and agencies.

http://www.dmc2011.com/

July 20-21, 2011
Hope Hotel & Conference Center
Wright-Patterson Air Force Base, Dayton, Ohio

LSP Technologies is proud to attend again this year to discuss it’s laser peening process and services as well as it’s laser bond inspection process. 

The following is taken from their website:
The Dayton Area Defense Contractors Association (DaytonDefense) will sponsor the fifth “Wright Dialogue with Industry” conference on July 20-21, 2011 at the Hope Hotel and Conference Center, Wright-Patterson AFB, OH.

The purpose of this conference is to help promote economic development activity among local defense contractors and Wright-Patterson Air Force Base. Please plan to attend this year’s Wright Dialogue with Industry to hear first-hand from key leaders of the Air Force Research Laboratory (AFRL) organization as they discuss both current and future business opportunities.  There will be opportunities throughout the day for more detailed breakout sessions where you can pose your particular questions to the Laboratory representatives. Throughout the course of the event, there will be time to network and discuss opportunities to do business in greater detail with AFRL.

http://www.wrightdialogue.org/pages/overview.html

LSP Technologies attended the Advanced Laser Applications

Workshop held in Plymouth, Michigan May 3 through 5. 

David Lahrman, Director of Business Development, presented a

paper on “Laser Peening for Fatigue Improvement” on May 4th 

at this year’s meeting.  This year’s theme was to adress the

current economic and manufacturing challenges in the USA,

including a new direction for the workshop, looking into

“What’s Going on Outside of Automotive?”

Dr. Jeff Dulaney and Dr. Allen Clauer of LSP Technologies will attend the 3rd International Conference on Laser Peening & Related Phenomena on October 11-14, 2011 in Grand Cube Osaka, Japan.  Dr. Dulaney has joined the conference committee. 

Dr. Dulaney will present on the topic Future Shock: Accelerating Technology, here is the abstract for his presentation. 

It takes an enormous effort to take technology from a laboratory research environment to commercial use.  Laser Shock Processing (LSP) of the 1970s evolved into the commercial success known today as laser peening.  There are several variants of laser peening in use today, and others yet to be discovered, developed, and integrated into commercial use.  The study of the laser-generated shock waves, so critical to laser peening, will find commercial applicability beyond imparting compressive residual stress in metals.  Computer models, currently being used to support commercial applications development, will continue to improve and lead the way to new applications and uses.  Overlay materials will evolve to enhance the effectiveness of laser peening through the use of special materials and techniques.  In situ process controls and diagnostics will continue to be developed to provide real-time feedback for process control and continuous quality assurance as critical parts are being processed.  Advancement of laser peening systems will enable new and unexpected applications. 

Dr. Clauer will present a paper he co-authored with Peter Gaydos entitled, “The Effect of Surface Treatments on Fatigue of Carburized X2M Steel.”   Here is the abstract for his paper.

“Carburized X2M specimens were tested in 3-point bending fatigue after having their surface treated with four different treatments both individually and in combination. The bend specimens were 102 mm x 34 x 8.5 mm, with the longitudinal edges of the tensile surface tapered. The surface treatments were Isotropic Surface Finishing (ISF), Low Stress Grinding (LSG), Shot Peening (SP) and Laser Shock Peening (LSP). The first three were also applied in combination with a follow-up LSP treatment, and also a combined ISF/SP/LSP treatment.
The results show that the fatigue strength increased with the type of surface treatment in the order of ISF, LSG, SP, LSP. The combination treatments produced fatigue strength equivalent to or slightly better than the LSP treatment alone.

These results will be discussed in the context of residual stress profiles and scanning electron microscopy of the surfaces and fracture surfaces. The observed modifications of the surfaces and compressive residual stresses lead to observable changes in crack initiation behavior.”

Other committee members from Ohio include:

Ramana V. Grandhi: Wright State University, USA

Kristina Langer: Wright-Patterson AFB, USA

S. R. Mannava: University of Cincinnati, USA

Visit the conference website to learn more

http://www.mapse.eng.osaka-u.ac.jp/3rdLP/

21st Summer PEWG Technical Working Group

June 13-16,  2011
The Buttes Marriott
Tempe, AZ

Monday, June 13, David Lahrman presented a briefing on LSP Technologies sucessful demonstration of the use of laser peen lasers to remove material coatings titled, “Hard Face Coating Removal from Thin Substrates.”  

Tuesday, June 14, Peter Gaydos presented a briefing entitled, “Laser Shock Peening Process for Repair of Aerospace Components.”  This briefing was directed toward the implemetation of laser peening equipment and processes in the repair depot setting. 

The PEWG Technical Working Group is an excellent forum to encourage new technologies and create collaboration and cooperation between government, academia, and industry.  By working together, we can improve propulsion system repair efficiency and maintainability while addressing common environmental, safety, and health problems. 

http://www.pewg.com/events.html

LSP Technologies, Inc. has been named a co-recipient of the 2010 Award for Excellence in Technology Transfer by the Department of Energy’s Federal Laboratory Consortium (FLC). LSP Technologies was recognized for their contribution toward transferring “Laser Shock Peening for Pilger Dies” to the commercial marketplace in collaboration with Battelle’s Pacific Northwest Laboratory (PNNL) and Sandvik Special Metals (SSM).  LSP Technologies pioneered the commercial development of a metal surface treatment called laser shock peening in the late 1990s, which was first invented in the 1970s by Battelle researchers in Columbus, Ohio.

Special metalforming tools called pilger dies are used to reduce the circumference and wall thickness of metal tubes. The high operational stresses exerted on the dies during the cold pilgering process can result in frequent die failures, which results in costly downtime.   LSP Technologies, PNNL, and Sandvik teamed to develop and apply laser shock peening techniques to extend steel die life.  Dies treated by LSP Technologies can last up to six times longer than untreated dies. Laser shock peening deters die failures by using high-energy laser pulses to create deep, compressive residual stresses in the die’s surface.  LSP Technologies, Sandvik, and PNNL researchers are studying how the automotive, aerospace, and nuclear industries can benefit from this development. To read more about Laser Shock Peening of Pilger Dies, please click on the following link:
LSP of Pilger Dies – PNNL Sandvik LSPT

The first international conference on laser peening will be held in Houston-Texas, USA 15-17 December 2008.  It is an honor to have Dr. Allan Clauer of LSP Technologies, Inc. kicking off the conference with the first of two keynote presentations at 9:15 am on 15 December.  Dr. Clauer has been involved with laser peening from its inception in the early 1970s, back when it was called laser shock processing.

 The conference was established by Dr. Omar Hatamleh of NASA-Johnson Space Center.  Dr. Hatamleh is the Conference Chairman.

 Topics will include:

• Laser peening effects on residual stress distribution
• Modeling of residual stresses from laser peening
• Laser peening effects on fatigue life, and crack growth rates in base and welded components
• Laser peening effects on microstructure, mechanical properties, and surface roughness
• General aspects of laser peening – process parameters, potential applications, commercialization
• Additional topics within the field of laser peening are welcome

 Contributions will be made by attendees from around the world, including presentations by Dr. Todd Rockstroh (General Electric Aviation – USA) on “Laser Shock Processing of Aircraft Engine Components”, Dr. Brent Dane (Metal Improvement Company) on “Recent Developments in Large Scale Industrial Laser Peening”, Dr. Yuji Sano (Toshiba-Japan) on Development and Applications of Laser Peening Systems for Field Operations”, Mr. Brad Cowles (Pratt & Whitney-USA) on “Applications, Benefits, and Challenges of Advanced Surface Treatments”, and Dr. Takafumi Adachi (Fuji Heavy Industry-Japan) on “Effects of Laser Peening on Fatigue Properties for Aerospace Aluminum Alloys”.

 For more information about the conference, presentations, and presenters, visit the conference website at http://mmptdpublic.jsc.nasa.gov/laser-peening/