Directed light fabrication

Abstract

an affirmativeaction/equal opportunityemployer, is operated by the Universityof California for the U.S. Department of Energy under contract W-7405-ENG-36. By acceptance of this article, the publisherrecognizes that the U.S. Government retains a nonexclusive,royalty-free license_o publishor reproduce the publishedform of this contribution,or to allow others to do so, forU.S. Government purposes. The Los Alamos NationalLaboratory requeststhat the publisher identify this article as work performed under the auspices of the U._. Department o fEnergy..

Direct laser cladding of Co on Ti–6Al–4V with a compositionally graded interface

“…Laser cladding may also be applied to fabricate solid components by applying the clad layer in a layer by layer fashion and thereby, building of the full component from the computer aided design (CAD) which may be termed as direct laser cladding (Steen, 1991 (Laeng et al, 2000;Dutta Majumdar and Manna, 2003). The process has been referred by different names, such as laser engineered net shaping (LENS) (Steen et al, 1997), direct laser fabrication (DLF) (Lewis et al, 1994) and laser metal forming (LMF) (Gaumann et al, 1999). Arcella and Froes (2000) reported on the laser forming of titanium.…”

Real-Time Measuring the Distance between Laser's Mouth and Workpiece

“…International research institutions on the measurement and closed-loop control studies have their own characteristics, research methods and objects are not the same. Some one by temperature measuring device measure the temperature of molten pool to indirect get the laser power [3]. Some one through the CCD device can also access to the laser power by the image of molten pool [4].…”

Optimization of processing parameters for laser powder deposition using finite element method

“…Models of LPD developed so far mainly focused on heat transfer [1][2][3][4][5][6][7][8][9] . Weerasinghe and Steen [10] used a 3-D finite difference model to calculate the temperature.…”