[PDF] Top 20 Optimization Models for Melting Patterns in Powder Bed Fusion Additive Manufacturing.

... thermomechanical models are used to study the relationship between process parameters, build geometry, on cracking, with the assumption that mechanical deformation of surfaces would not lead to changes in thermal ... See full document

... Powder Bed Fusion (PBF) is a promising Additive Manufacturing (AM) technology where polymeric or metallic particles, heated to just below their melting temperature are spread on ... See full document

... metal powder must present specific characteristics of: size, shape, granulometric distribution and physical properties (flowability and ...packing). Powder bed fusion methods can be employed ... See full document

... laser melting a 27 µ m diameter particle at 150 W and 1 m / s speed with increasing model fidelity from left to ...where melting occurred throughout the particle simultaneously generating a flat contact ... See full document

... melting, selective laser sintering is into existence because of advancements starting from the obsolete Photo Glyph Recording. The present day AM techniques are based out of four patents namely: vat photo ... See full document

... laser powder bed additive manufacturing technologies is residual stresses and distortions induced by heating the fine metal powder to the melting point and sudden cooling to the ... See full document

... respirator models are used ...traditional manufacturing methods, AM provides an opportunity to mass-customize individually fitting respirators [5]; however, this would require acquisition and conversion of ... See full document

... Residual stress measurements can be classified into destructive and non-destructive methods [10]. The popular non-destructive methods are X-ray diffraction and Neutron diffraction techniques which are capable of the ... See full document

... in additive manufacturing (Fathi et ...flow models using finite difference method (FDM) are consid- ered in the works of (Jamshidinia et ...the additive manufacturing of products by ... See full document

... industries. Additive manufac- turing of glass has the potential to open new possibilities in design and reduce costs associated with manufacturing complex customized glass structures that are difficult to ... See full document

... Metal additive manufacturing based on three-dimensional computer-aided design (CAD) models is a promising technology for fabricating metal products with arbitrary complex geometries within short ... See full document

... Abstract: Cellular substructure has been widely observed in the sample fabricated by laser powder bed fusion, while its growth direction and the crystallographic orientation have seldom been studied. ... See full document

... digital manufacturing processes like 3D printing, producing micro-lattice structures having dimensions in the range of micro-meters has become ...as Additive manufacturing (3D printing, Selective ... See full document

... Abstract: This paper presents the methodology and results of an extensive benchmarking of laser powder bed fusion (LPBF) machines conducted across five top machine producers and two end users. The ... See full document

... induction melting (VIM) ...spherical powder particles ...atomised powder, the distribution can be influenced by varying the ratio of the gas to melt flow ... See full document

... Within the bounds of the technical considerations for the investigation, a number of factors are present which can, if unaddressed, seriously inhibit the ability of AM to successfully produce parts which are deemed fit ... See full document

... Abstract. Recent advances in X-ray computed tomography (XCT) have allowed for measurement resolutions approaching the point where XCT can be used for measuring surface topography. These advances make XCT appealing for ... See full document

... The limitations of investment casting of cobalt-based alloys are claimed to be less problematic with significant improvements in metal additive manufacturing by selective laser melting (SLM). Despite ... See full document

... of additive manufactured (AM) ...a powder bed process, as an example to investigate these issues and evaluate the capability of the LP technique for improving the surface quality of AM ... See full document

... A crank case cover is a crucial part of the engine which carries most of the load from crank shaft and thermal loads. This paper discusses a method to reduce the weight of the crankcase cover without compromising the ... See full document