Results 51 to 60 of about 2,739,050 (267)

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Analysis of machining performance of Inconel 718 printed by PBF-LM (powder bed fusion laser melting)

, 2021
Additive manufacturing based on powder bed fusion laser melting (PBF-LM) is receiving increased attention in nickel-base superalloys manufacturing, due to the difficulty of removal processes of superalloys.
Miguelez, M, Gunputh, U, Diaz-Alvarez, A, Diaz-Alvarez, J, Rusinek, A, Wood, P   +5 more
core  

Characterisation of 17-4PH metallic powder recycling to optimise the performance of the selective laser melting process

Journal of Materials Research and Technology, 2020
The advantages of Additive Manufacturing (AM) processes are well known. Particularly, those AM techniques which are used to manufacture metallic parts are of great interest to industry due to the good mechanical behaviour of metallic alloys. Despite this,
Pablo Zapico, Sara Giganto, Joaquín Barreiro, Susana Martínez-Pellitero   +3 more
doaj   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Laser assisted powder bed fusion of hypereutectic Al-Si using ultra-short laser pulses at different pulse durations (Conference Presentation)

, 2022
Paper 112710MLaser assisted powder bed fusion of pure Aluminum and hypereutectic Al-Si using ultra-short laser pulses at different pulse lengths is presented. The experiments were carried out with a fiber laser system delivering pulses from 500 fs to 600
Rettenmayr, M., Seyfarth, B., Kaden, L., Ullsperger, T., Nolte, S., Liu, D., Matthäus, G.   +6 more
core   +1 more source

In situ measurements of layer roughness during laser powder bed fusion additive manufacturing using low coherence scanning interferometry

Materials & Design, 2018
Layer-to-layer height measurements of additively manufactured 316L stainless steel using high speed spectral-domain optical coherence tomography (SD-OCT) are presented.
Philip J. DePond, Gabe Guss, Sonny Ly, Nicholas P. Calta, Dave Deane, Saad Khairallah, Manyalibo J. Matthews   +6 more
doaj   +1 more source

Experimental Analysis and Spatial Component Impact of the Inert Cross Flow in Open-Architecture Laser Powder Bed Fusion

Journal of Manufacturing and Materials Processing, 2023
Laser-based powder bed fusion is an additive manufacturing process in which a high-power laser melts a thin layer of metal powder layer by layer to yield a three-dimensional object.
Magnus Bolt Kjer, Zhihao Pan, Venkata Karthik Nadimpalli, David Bue Pedersen   +3 more
doaj   +1 more source

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

Absorbance determination of a powder bed by high resolution coaxial multispectral imaging in laser powder bed fusion

, 2023
This study presents an approach for in-situ monitoring of laser powder bed fusion. Using standard laser optics, coaxial high-resolution multispectral images of powder beds are acquired in a pre-objective scanning configuration.
Brandau, Benedikt, Brueckner, Frank, Frank Brueckner, Alexander F.H. Kaplan, Kaplan, Alexander F.H., Benedikt Brandau, Kaplan, Alexander F. H., Kaplan, Alexander F. H.,, Brandau, Benedikt,, Brückner, Frank, Brueckner, Frank,   +10 more
core   +1 more source

Personalized Artificial Tibia Bone Structure Design and Processing Based on Laser Powder Bed Fusion

Machines, 2022
Bone defects caused by bone diseases and bone trauma need to be implanted or replaced by surgery. Therefore, it is of great significance to design and prepare a tibial implant with good biocompatibility and excellent comprehensive mechanical properties ...
Nan Yang, Youping Gong, Honghao Chen, Wenxin Li, Chuanping Zhou, Rougang Zhou, Huifeng Shao   +6 more
doaj   +1 more source