Markus Merkel
70 Papers
256 Citations
Markus Merkel is an academic researcher. The author has contributed to research in topics: Selective laser melting & Finite element method. The author has an hindex of 14, co-authored 63 publications.
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Papers
A deep learning-based model for defect detection in laser-powder bed fusion using in-situ thermographic monitoring
Hermann Baumgartl,Josef Tomas,Ricardo Buettner,Markus Merkel +3 more
- 01 Sep 2020
TL;DR: In this article, a combination of thermographic off-axis imaging as data source and deep learning-based neural network architectures was used to detect printing defects such as delamination and splatter with an accuracy of 96.80%.
Direction and location dependency of selective laser melted AlSi10Mg specimens
Leonhard Hitzler,Christoph Janousch,Jochen Schanz,Markus Merkel,B. Heine,Florian Mack,Wayne Hall,Andreas Öchsner +7 more
TL;DR: In this article, a precipitation-hardenable AlSi10Mg alloy with the main focus on the positioning and inclination effects was studied on six characteristic orientations, and the superimposed effects based on the surface condition and thermal post-treatment were taken into account.
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A Review of Metal Fabricated with Laser‐ and Powder‐Bed Based Additive Manufacturing Techniques: Process, Nomenclature, Materials, Achievable Properties, and its Utilization in the Medical Sector
TL;DR: In this paper, the main properties (surface hardness, tensile, and compression strength, as well as fracture toughness) and their anisotropicand inhomogeneous nature are addressed.
163
Additive Manufacturing of Cobalt-Based Dental Alloys: Analysis of Microstructure and Physicomechanical Properties
Leonhard Hitzler,Frank Alifui-Segbaya,Philipp Williams,B. Heine,Michael T. Heitzmann,Wayne Hall,Markus Merkel,Andreas Öchsner +7 more
TL;DR: In this paper, the microstructure of ternary cobalt-chromium-molybdenum (Co-Cr-Mo) and cobalt chromium-tungsten (CoCr-W) alloys built with direct metal printing and selective laser melting (SLM) was evaluated at 0°, 30°, 60°, and 90° inclinations in as-built (AB) and heat-treated (HT) conditions.
Laser Polishing of Additive Manufactured AlSi10Mg Parts with an Oscillating Laser Beam
Jochen Schanz,Markus Hofele,Leonhard Hitzler,Markus Merkel,Harald Riegel +4 more
- 01 Jan 2016
TL;DR: In this paper, a disk laser with a maximum power of 4 kW in combination with a 1D scanner system was used to reduce the surface roughness by up to 92 %.
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