Results 61 to 70 of about 78,185 (291)

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source

Evaluation of Mechanical Properties and Microstructure for Laser Deposition Process and Welding Process [PDF]

, 2006
Laser Aided Manufacturing Process (LAMP) can be applied to repair steel die/molds which are currently repaired using traditional welding process in industry.
Anand, Jambunathan, Bao, Yaxin, Liou, Frank, Newkirk, Joseph, Ruan, Jianzhong, Sparks, Todd E.   +5 more
core   +2 more sources

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

A Comparative Study on the Laser Welding of Ti6Al4V Alloy Sheets in Flat and Horizontal Positions

Applied Sciences, 2017
Laser welding has been increasingly utilized to manufacture a variety of components thanks to its high quality and speed. For components with complex shapes, the welding position needs be continuously adjusted during laser welding, which makes it ...
Baohua Chang, Zhang Yuan, Haitao Pu, Haigang Li, Hao Cheng, Dong Du, Jiguo Shan   +6 more
doaj   +1 more source

Feature Extraction of Laser Welding Pool Image and Application in Welding Quality Identification

IEEE Access, 2021
Most of the existing laser welding quality identification methods are post-weld identification or low-speed identification (Welding speed below 120 m/min).
Yinrui Gao, Ping Zhong, Xin Tang, Haowei Hu, Peng Xu   +4 more
doaj   +1 more source

Ultrafast laser welding of ceramics. [PDF]

, 2019
Welding of ceramics is a key missing component in modern manufacturing. Current methods cannot join ceramics in proximity to temperature-sensitive materials like polymers and electronic components.
Aguilar, G, Cuando-Espitia, N, Devia-Cruz, LF, Garay, JE, Kodera, Y, Kodera, Y, Martinez-Torres, P, Penilla, EH, Sellappan, P, Wieg, AT   +9 more
core  

Nanoscale Processing by Adaptive Laser Pulses

, 2002
We theoretically demonstrate that atomically-precise ``nanoscale processing" can be reproducibly performed by adaptive laser pulses. We present the new approach on the controlled welding of crossed carbon nanotubes, giving various metastable junctions of
A.M. Weiner, A.M. Weiner, A.P. Peirce, B.K.A. Ngoi, D. Meshulach, D.B. Geohegan, D.J. Tannor, E.J. Mele, F. Banhart, F.-R. Tsai, G.G. Samsonidze, H.O. Jeschke, J. Hone, J. Hone, J. Sloan, J.A. Roth, L.C. Qin, M. Irie, M. Terrones, M. Terrones, N.G. Chopra, P. Král, P. Nikolaev, P.M. Ajayan, Petr Král, R. Tenne, S. Berber, S. Iijima, T. Brixner, T. Hertel, Y. Zhao, Y.-G. Yoon, Y.H. Lee   +32 more
core   +1 more source

Metal Laminated Tooling - A Quick and Flexible Tooling Concept [PDF]

, 2004
For the fast manufacturing of complex formed tools Fraunhofer IWS works together with partners from the industry on a constant automation solution for cutting, packaging and adding steel sheet cutouts.
Beyer, Eckhard, Himmer, Thomas, Nowotny, Steffen, Techel, Anja   +3 more
core   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source