Laser peening produces deep compressive residual stresses that extend component service lifetimes and improve performance. The key to laser peening’s effectiveness is the generation of a powerful shockwave – but how does this process enhance the metal surface?
LSPT Senior Engineer Stan Bovid explains the mechanics in this excerpt from a recent live webinar. Click here to sign up for our next live training event, or contact us to arrange a private presentation for your team.
Laser Bond Inspection Detects Critical Flaws in Bonded Structures
Kissing bonds present a serious defect in bonded structures. Kissing bonds occur when bonded surfaces are in intimate contact but possess no mechanical strength. This typically results from manufacturing faults surrounding surface and adhesive preparation, and these flaws can lead to premature failure. Kissing bonds are notoriously difficult to detect, and can’t be identified through most nondestructive inspection methods.
LSPT’s Laser Bond Inspection (LBI) technology is the only known nondestructive method for evaluating bond strength and detecting kissing bonds. LBI performs real-time detection using a laser-generated stress wave and an EMAT or VISAR signal. This live webinar highlight explains how LBI is used in conjunction with VISAR to detect kissing bonds.
Contact LSPT to learn more about Laser Bond Inspection technology.
LSP Technologies has developed an innovative method for evaluating adhesive bond strength in bonded composite structures. Laser Bond Inspection (LBI) uses a pulsed laser to generate a controlled stress wave which interrogates the adhesive bond line. The strength of the stress wave is selected by adjusting laser parameters, and the nondestructive process detects weak bonds while leaving strong bonds unaffected.
This live webinar highlight from May 2017 outlines basic principles and applications of this revolutionary technology.
THE AIR FORCE STUDY THAT GAVE RISE TO LASER PEENING FOR FOD
Mitigating foreign object damage (FOD) in turbine engine blades was one of the first commercial applications of laser peening. In the early 1990s, the U.S. Air Force needed a powerful surface enhancement solution to address fatigue cracking in the F101 engines on the B-1 bomber.