Results 71 to 80 of about 1,468,079 (289)

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

Advanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig, Michael Werner, Christian Rotsch   +2 more
wiley   +1 more source

Laser Tracker

, 1990
In 1987 National Institute of Standards and Technology (NIST) scientist Kam Lau developed the first laser tracking interferometer combined with a servo system that allows the laser to track a moving target and measure the distance and angle of the target.
Lau, Kam
core  

Optimizing Incidence Angle and Range for Single-Shot Laser Scanning Point Clouds to Model Aerospace Fasteners [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
In high-precision manufacturing environments, optical metrology technologies allow on-line checking and validation, offering live digital representations, with the broader potential to create digital manufacturing twins.
K. Pexman, S. Robson
doaj   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

3D‐Printed Titanium Gyroid Scaffold Structure Integrated With Tough Hybrid Materials for Cartilage Replacement

Advanced Engineering Materials, EarlyView.
This study proposes a potential device design for joint cartilage replacement. Silica‐polytetrahydrofuran (SiO2‐PolyTHF) hybrids with customizable mechanical properties were developed to mimic the characteristics of a natural meniscus. These were synthesized through a two‐pot sol–gel hybrid process.
Yu‐Chien Lin, Gloria R. Young, Francesca Tallia, Reece N. Oosterbeek, Shaaz Ghouse, Edward Spiers, Nupur Kohli, Tom Briggs, Marc Masen, Siwei Li, Ren‐Jei Chung, Jonathan R. T. Jeffers, Julian R. Jones   +12 more
wiley   +1 more source

Estimation of Surface Normals of Aerospace Fasteners from 3D Terrestrial Laser Scanner Point Clouds

Metrology
Measurement systems such as laser trackers and 3D imaging systems are being increasingly adopted across the manufacturing industry. These metrology technologies can allow for live, high-precision measurement in a digital system, enabling the spatial ...
Kate Pexman, Stuart Robson, Hannah Corcoran   +2 more
doaj   +1 more source

Articulated Arm Coordinate Measuring Machine Calibration by Laser Tracker Multilateration

The Scientific World Journal, 2014
A new procedure for the calibration of an articulated arm coordinate measuring machine (AACMM) is presented in this paper. First, a self-calibration algorithm of four laser trackers (LTs) is developed. The spatial localization of a retroreflector target,
Jorge Santolaria, Ana C. Majarena, David Samper, Agustín Brau, Jesús Velázquez   +4 more
doaj   +1 more source

Fitness trackers : user experience and motivation

, 2019
Fitness trackers have become a popular technology for the fitness industry within the wearable market. Fitness trackers provide a unique user experience in that they are ubiquitous and provide instantaneous biometric data to users.
Siscoe, Darby R.
core  

Using Passive Measurements to Demystify Online Trackers [PDF]

, 2016
The Internet revolution has led to the rise of trackers—online tracking services that shadow users' browsing activity.
Traverso, Stefano, Mellia, Marco, Metwalley, Hassan   +2 more
core   +1 more source