Journal ArticleDOI
Influence of process parameters on surface roughness of aluminum parts produced by DMLS.
TLDR
In this paper, a model based on an L18 orthogonal array of Taguchi design was created to perform experimental planning and the upper surfaces of the samples were analyzed before and after shot peening.Abstract:
Direct metal laser sintering (DMLS) is an additive manufacturing technique for the fabrication of near net-shaped parts directly from computer-aided design data by melting together different layers with the help of a laser source. This paper presents an investigation of the surface roughness of aluminum samples produced by DMLS. A model based on an L18 orthogonal array of Taguchi design was created to perform experimental planning. Some input parameters, namely laser power, scan speed, and hatching distance were selected for the investigation. The upper surfaces of the samples were analyzed before and after shot peening. The morphology was analyzed by means of field emission scanning electron microscope. Scan speed was found to have the greatest influence on the surface roughness. Further, shot peening can effectively reduce the surface roughness.read more
Citations
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A preliminary investigation on hardness performance of LENS-processed 316 stainless steel (SS)
TL;DR: Meka et al. as discussed by the authors investigated the hardness performance of LENS-processed 316 Stainless Steel (SS) and found that hardness performance is affected by porosity, which is a key factor in determining the additive-manufactured samples.
DMLS YÖNTEMİYLE İMAL EDİLEN Ti6Al4V ALAŞIM ÖZELLİKLERİNE İŞLEM PARAMETRELERİNİN ETKİSİ
Sevil Turhan,Abdullah Özsoy +1 more
TL;DR: In this article, the authors present a model of DMLS (dogrudan lazer metal lazer sinterleme) cihazi ile Ti6Al4V toz malzemesi kullanilarak deney numuneleri uretilmistir.
DissertationDOI
Corrosion Performance of Additively Manufactured Alloys and Hot Corrosion
TL;DR: In this paper , the authors focused on the corrosion properties of the parts and coatings fabricated using the laser powder bed fusion based additive manufacturing (AM) method or laser surface processing method, including a comprehensive review.
Journal ArticleDOI
Influence of post-processing and build orientation on the micro-machinability and chip formation during micro-drilling of L-PBF AlSi10Mg
Jino Joshy,Basil Kuriachen +1 more
TL;DR: In this paper , the impact of T6 solution heat treatment and build orientation on microstructure, thrust force, cutting torque, surface roughness, and cutting temperature is analyzed.
References
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Book
Laser Material Processing
TL;DR: In this paper, the effect of reflectivity of the surface, when a pure, monochromatic laser (6) is used, is remedied by the simultaneous application of a relatively shorter wavelength beam (1).
Journal ArticleDOI
Selective laser melting of iron-based powder
Jean-Pierre Kruth,Ludo Froyen,J. Van Vaerenbergh,Peter Mercelis,Marleen Rombouts,Bert Lauwers +5 more
TL;DR: In this paper, a mixture of different types of particles (Fe, Ni, Cu and Fe3P) specially developed for selective laser sintering (SLS) is described.
Journal ArticleDOI
Consolidation phenomena in laser and powder-bed based layered manufacturing
TL;DR: In this article, the authors describe which types of laser-induced consolidation can be applied to what type of material, and demonstrate that although SLS/SLM can process polymers, metals, ceramics and composites, quite some limitations and problems cause the palette of applicable materials still to be limited.
BookDOI
Rapid manufacturing : an industrial revolution for the digital age
TL;DR: In this paper, the authors present a discussion of the potential of rapid manufacturing in the automotive industry and present a case study of how to modify a garden fork handle in order to make it more efficient.