Results 71 to 80 of about 66,021 (260)

Femtosecond laser cutting of paper

Optics Express
Femtosecond laser processing of paper materials was performed to identify effective laser parameters of the pulse energy and the number of irradiation pulses in laser cutting experiments using a confocal optical microscope observation of the processed structures.
Yoshio Hayasaki, Daisuke Shimizu
openaire   +2 more sources

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Cutting Edge Height Measurement of a Rotary Cutting Tool by a Laser Displacement Sensor

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
This paper proposed a high speed and a high accuracy measurement method for the cutting edge height of a rotary cutting tool with respect to the reference surface on the tool by using a laser triangulation displacement sensor.
Shinichi OSAWA, So ITO, Yuki SHIMIZU, SungHo JANG, Wei GAO, Tsutomu FUKUDA, Akira KATO, Kouji KUBOTA   +7 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +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

Effectiveness of Cutting Speed ​​of SS 316 L Material on Surface Roughness in Laser Cutting Process

Dinamika Rekayasa
Cutting metal materials using Laser Cutting can determine the quality of the cutting material. This is because laser cutting uses high speed, so it can improve the quality of the cut material.
Sigit Arrohman, Andri Sulistyo, Catur Harsito   +2 more
doaj   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Quality Analysis of Cutting Steel Using Laser

Mokslas: Lietuvos Ateitis, 2012
The article explores the quality dependence of the edge surface of steel C45 LST EN 10083-1 obtained cutting the material using laser on different cutting regimes and variations in the thickness of trial steel.
Vladislav Markovič
doaj  

Optimizing Laser Cutting Parameters for Enhanced Surface Quality in Mild and Stainless Steel: An Experimental Study

Engineering Reports
One of the main problems experienced when using laser cutting equipment is the wrong selection of cutting parameters. This incorrect selection decreases the cut surface quality, which is hardly re‐established, injuring the overall process quality.
Rita de Cássia Mendonça Sales‐Contini, Ivo Amaral, Rafael Resende Lucas, Arnaldo Manuel Guedes Pinto, Raul Duarte Salgueiral Gomes Campilho, Luís L. Magalhães, Francisco José Gomes da Silva   +6 more
doaj   +1 more source