Search

Metal Additive Manufacturing has grown from 3D metal printing; this technology leads to manufacturing parts using various metallic materials. Additive Manufacturing technology uses the same principle of slicing a solid model into multiple layers and creating a tool path for each layer, then uploading this data to the printing machine and building the part up layer by layer following the sliced model data using a heat source (laser, electron beam, electric arc, or ultrasonic energy, etc.) and feedstock (metal powder, wire or thin metal sheet, etc.). The Additive Manufacturing process starts with designing the prototype, continues with printer pre-processing, then with printing the prototype, and finally with post-processing to get the final part, followed by testing. This sequence has to be repeated till achieving the desired prototype. This method costs money and time. In this paper, the Simufact Additive Manufacturing software makes a virtual simulation to save time and money. In this virtual modelling, different types of materials can be used. Different approaches can be tested, such as building orientations with various parameters, changing supporting structures, and cutting and support removal to achieve a usable process, which is free from damaging effects on the first time that goes through the build. This paper deals with three types of metal alloys (TiAl6V4, AlSi10Mg, and 316L). Different types of machines, thermal analysis, mechanical calibration, thermal and thermomechanical calibration, were applied to find the set parameters such as laser power, inherent strains, exposure energy fraction, and volumetric expansion factor. [ABSTRACT FROM AUTHOR]

Additive manufacturing is becoming increasingly widespread in many areas of life. One of the main reasons for this is that the machines, raw materials and manufacturing are becoming cheaper. The cheaper the technology, the more widespread it is. The cost of production is influenced by many factors. One of these shows the impact of the part's production positioning (placement in the working space) on costs in the following study. On this basis, we can simplify the traditional pricing strategy. From the results, we can determine how economically it is worth to place the parts in the work area of the machine. [ABSTRACT FROM AUTHOR]

Fused Filament Fabrication (FFF) is an additive manufacturing technology that is used to create a wide range of parts and applications. Along with its benefits, there are some challenges regarding the printed parts' mechanical properties, which are associated with printing parameters like layer thickness, infill density, print speed, and nozzle temperature. Experimentally investigation of these pamperers is costly and time-consuming. Some simulations are available to use the numerical solution in the investigation. This work used Digimat-AM simulation to investigate the effect of layer thickness on the residual stress and warping deformation of printed ABS parts. [ABSTRACT FROM AUTHOR]

In the recent years 3D printing became a hot topic, however it’s hard to design parts without a deep understanding of the material properties. The usage of these materials in vehicles assumes the knowledge of the behavior in dynamical environment. The aim of this study is to estimate the modal parameters and the damping properties via experimental dynamic analysis of a part made from PLA. With the results we can provide data for the FEM softwares’ input. After the numerical simulations the simulated results were compared to the measured data. [ABSTRACT FROM AUTHOR]