By Max Groenendijk Ultrashort pulsed lasers have proven to be excellent tools to fabricate micro and nanotextured surfaces. These surfaces have a high potential for several applications where the tiny surface textures can improve or add a specific functional property. It was at ICALEO® 2006 that we first demonstrated a super hydrophobic surface obtained by […]
Month: April 2013
Advanced Laser Applications & Sources – A National Focus
By Geoff Giordano With photonics-driven manufacturing innovation becoming a hot topic in the nation’s capital, advanced laser applications — particularly in aerospace, automobiles, agriculture and energy production — are getting a bigger share of the spotlight. From gas and steam turbines to pipelines and passenger jets, even underwater welding in nuclear reactors (see LAM 2013 wrap […]
LAM 2013 Presents Groundbreaking Applications in AM
By Geoff Giordano If additive manufacturing is becoming the next big thing as some experts and companies believe, the Laser Institute of America’s fifth-annual Laser Additive Manufacturing (LAM®) Workshop helped pave the way by providing more information on the road map leading to an AM revolution. Situated in its largest venue yet, LAM 2013 featured […]
LIA Aids NPI in Revolutionizing US Manufacturing with Laser Technology
By Geoff Giordano With the US government running a full-court press to foster manufacturing innovation, the Laser Institute of America made the case for laser-based advanced manufacturing processes during a special presentation in the nation’s capital. LIA representatives advocating laser-driven manufacturing joined four other subcommittees discussing the growing usage of lasers in health, defense, energy […]
Electromagnetic Control of the Weld Pool Dynamics in Partial Penetration Laser Beam Welding of Aluminium Alloys
By Vjaceslav Avilov, André Schneider, Marco Lammers, Andrey Gumenyuk, Michael Rethmeier A well-known problem of partial penetration laser beam welding is keyhole-tip instability representing the main source of porosity – gas bubbles leave the keyhole near its tip. The second important problem of keyhole mode laser welding is very intensive thermocapillary (Marangoni) convection in the upper […]