Results 41 to 50 of about 8,497 (257)

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

Weld formation and porosity in TC4 joint by oscillating laser beam welding with circle trajectory model

Journal of Materials Research and Technology
The pores problem is a challenging problem in laser beam welding titanium alloy TC4. Oscillating laser beam welding, as a new welding process, can effectively control the behavior of the molten pool, and is beneficial to the escape of pores, which holds ...
Tianqing Li, Yongjie Wan, Zhiwei Bi, Siyu Yang, Daoliang Wu, Yucheng Lei   +5 more
doaj   +1 more source

In-Process Analysis of Melt Pool Fluctuations with Scanning Optical Coherence Tomography for Laser Welding of Copper for Quality Monitoring

Micromachines, 2022
Optical coherence tomography (OCT) is an inline process monitoring technology for laser welding with various applications in the pre-, in-, and post-process.
Thomas Will, Tobias Jeron, Claudio Hoelbling, Lars Müller, Michael Schmidt   +4 more
doaj   +1 more source

Laser welding by focusing multi-laser beams

Optics Express
This paper presents a multi-laser beam focusing on laser welding based on a reflective splitting mirror, aiming to improve the stability of the laser welding process and reduce welding defects. By validating the laser welding process on Q235 mild steel using a newly developed multi-focused laser beam, the results show that by increasing the number of ...
Da Li, Zhigang Han, Pengfei Zhao, Zhiyong Dong, Shushen Zhao, Rihong Zhu, Fangxin Li, Yingying Yang, Xuechun Lin   +8 more
openaire   +2 more sources

Laser beam welding of any metal [PDF]

ICALEO '98: Proceedings of the Laser Materials Processing Conference, 1998
The effect of a metal’s thermophysical properties on its weldability are examined. The thermal conductivity, melting point, absorptivity and thermal diffusivity of the metal and the laser beam focused diameter and welding speed influence the minimum beam irradiance required for melting and welding.
K. H. Leong, H. K. Geyer
openaire   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

Research of temperature and microstructure in friction stir welding of Q235 steel with laser-assisted heating

Results in Physics, 2018
In this paper, a three dimension heat source is developed in laser heated friction stir welding. The model was calculated by CFD software FLUENT, and the temperature field and flow field of the welding are obtained.
Xinjiang Fei, Zhifeng Wu
doaj   +1 more source

Laser Beam Welding with High-Frequency Beam Oscillation: Welding of Dissimilar Materials with Brilliant Fiber Lasers

Physics Procedia, 2011
Brilliant laser beam sources in connection with a high frequent beam oscillation make it now possible to join metallic material combinations, which have been conventionally non-laser weldable up to now. It concerns especially such combinations like Al-Cu, where brittle intermetallic phases occur.
Kraetzsch, Mathias, Standfuss, Jens, Klotzbach, Annett, Kaspar, Joerg, Brenner, Berndt, Beyer, Eckhard   +5 more
openaire   +1 more source

Atomized Oxidative Polymerization as a 3D Printing Platform for Binder‐Free, Bulk Conductive Polymer Architectures

Advanced Functional Materials, EarlyView.
Co‐delivery of electrosprayed EDOT and oxidant enables bulk oxidative polymerization during layer‐by‐layer fabrication, creating stable, highly conductive 3D PEDOT structures. This Atomized Oxidative Polymerization (AOP) overcomes the surface deposition‐only and matrix‐limited conductivity of conventional Vapor Phase Polymerization (VPP) and PEDOT:PSS ...
Tazdik Patwary Plateau, Hiep Pham, Jonghyun Park   +2 more
wiley   +1 more source

Study of fundamental parameters in hybrid laser welding [PDF]

, 2011
This thesis undertakes a study of laser welding in terms of basic laser material interaction parameters. This includes power density, interaction time and specific point energy.
Suder, Wojciech
core