Results 81 to 90 of about 93,025 (314)

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

Performance evaluation of PCBN, coated carbide and mixed ceramic inserts in finish-turning of AISI D2 steel [PDF]

Jurnal Tribologi, 2017
The present study compares the performance of three different cutting tools, viz., PCBN, mixed ceramic and coated carbide tool in finish turning of hardened D2 tool steel in terms of tool wear, surface roughness, and economic feasibility under dry ...
M. Junaid Mir, M.F. Wani
doaj  

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

MODELING OF CUTTING TOOLS WEAR FOR LATHES

Cutting & Tools in Technological System, 2020
Для визначення періоду стійкості інструменту, а також базових показників процесу його експлуатації, які характеризують зношування інструменту, розроблено математичні залежності зношування різального інструменту по передній та задній поверхням від параметрів його експлуатації на важких верстатах.
Klymenko, G. P., Vasylchenko, Y., Kvashnin, V. V.   +2 more
openaire   +2 more sources

An FEM-based approach for tool wear estimation in machining

, 2016
This study presents an FEM-based approach to predict the rate of flank wear evolution for uncoated cemented carbide tools in longitudinal turning processes. This novel approach combines the concept of experimental design and Response Surface Methodology (
Gruber, Hans, Sadik, Ibrahim,, Nyborg, Lars, Nyborg, Lars,, Malakizadi, Amir,, Sadik, Ibrahim, Gruber, Hans,, Malakizadi, Amir   +7 more
core   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Analytical review of the wear resistance of CBN tools in face milling of hardened steels

Технічна інженерія
The article presents a detailed analytical review of the wear resistance of cubic boron nitride (CBN) tools in face milling of hardened steels. The main factors affecting tool wear, including cutting speed, feed, tool geometry, and thermal regime of ...
V.S. Antonyuk
doaj   +1 more source

Characterization of tool wear in friction drilling [PDF]

Jurnal Tribologi, 2018
Friction drilling is a non-traditional hole-making process, where the rotating conical tool between the thin workpiece produces a heat due to penetration to soften the workpiece and form a hole. It creates a bushing without generates the chip.
Mohd Zurrayen Abdul Mutalib , Mohd Idris Shah Ismail, Nawal Aswan Abdul Jalil, Azizan As’arry   +3 more
doaj  

Tool wear monitoring in turning using fused data sets of calibrated acoustic emission and vibration

, 2001
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The main aim of this research is to develop an on-line tool wear condition monitoring intelligent system for single-point turning operations.
Prateepasen, Asa, Prateepasen, A.
core  

Influence of Surface Finish on the Tribological Performance of AlTiBN Coatings Deposited on Forming Tools

Advanced Engineering Materials, EarlyView.
Aluminum and nitride coatings are used in industry because they are hard, resist wear, and protect against oxidation. Adding boron can improve friction behavior and other properties. This study tests coatings on surfaces with different finishes. Results show smoother surfaces perform better, while rough ones wear faster, although coatings can reduce ...
Adrián Claver, Iker Alfonso, Eneko Barba, Javier León, José Antonio García, Iñaki Zalakain, Iván Fernández Martínez, Arley García‐Carrero, Christian Almeyda, Daniel Salcedo   +9 more
wiley   +1 more source