Results 21 to 30 of about 1,265 (179)

Tool Wear and Surface Integrity of γ-TiAl Cryogenic Coolant Machining at Various Cutting Speed Levels

open access: yesLubricants, 2023
High-speed machining of γ-TiAl alloy is a significant challenge due to high cutting temperatures. From the perspective of environmental protection and improving tool life, appropriate cooling strategies should be adopted.
Xiangyu Wang   +5 more
doaj   +1 more source

Crater wear of TiN-coated hob.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1990
It is well known that the life of TiN-coated hob becomes tremendously longer than that of non-coated hob. But even a TiN-coated hob, its rake surface must be resharpend when it was worn out. And then TiN-coating on rake surface is removed but only on flank surface. And TiN-coating on flank surface is still effective to decrease the flank wear.
NAGANO, Kisaburo, AINOURA, Masato
openaire   +2 more sources

Experimental Study on Wear Characteristics of PCBN Tool with Variable Chamfered Edge

open access: yesChinese Journal of Mechanical Engineering, 2019
Owing to heavy dynamic and thermal loads, PCBN tools are seriously worn during hard cutting, which largely constrains the improvement of their machining performance.
Tao Chen   +3 more
doaj   +1 more source

Manufacturing and Wear Properties of SiC Coating Layer on Zr alloyFabricated by Vacuum Kinetic Spray Process [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
This study manufactured a SiC coating layer using the vacuum kinetic spray process and investigated its microstructure and wear properties. SiC powder feedstock with a angular shape and average particle size of 37.4 μm was used to manufacture an SiC ...
Gi-Su Ham, Kyu-Sik Kim, Kee-Ahn Lee
doaj   +1 more source

A study on the crater wear mechanism of cermet tools.

open access: yesJournal of the Japan Society of Powder and Powder Metallurgy, 1986
The purpose of this paper is to clarify the wear mechanism at high cutting speed where mutual diffusion at interface comes to active.The relation between the crater wear rate and the condition of diffusion layer by cutting test and dynamic diffusion test, for reference, was investigated and discussed.
Sentoku, Eiichi   +2 more
openaire   +2 more sources

Development and implementation of crater and flank tool wear model for hard turning simulations [PDF]

open access: yesThe International Journal of Advanced Manufacturing Technology, 2021
Abstract This paper concerns the tool wear in hard turning of AISI 52100 hardened steel by means of PCBN tools. The purposes of this work are the development of a tool wear model and its implementation in a FEM-based procedure for predicting crater and flank wear progression during machining operations for studying the influence of ...
cappellini, cristian, abeni, andrea
openaire   +2 more sources

Fundamental research on wear behavior of various coated tools in dry hobbing (Influence of hardness of work material)

open access: yesNihon Kikai Gakkai ronbunshu, 2019
In recent hobbing, the technologies of dry cutting have been developed in an attempt to improve the working environmental and prevent global environmental pollution.
Hironori MATSUOKA   +4 more
doaj   +1 more source

The Effect of MQL on Tool Wear Progression in Low-Frequency Vibration-Assisted Drilling of CFRP/Ti6Al4V Stack Material

open access: yesJournal of Manufacturing and Materials Processing, 2021
In this paper, the tool wear mechanisms for low-frequency vibration-assisted drilling (LF-VAD) of carbon fiber-reinforced polymer (CFRP)/Ti6Al4V stacks are investigated at various machining parameters.
Ramy Hussein   +3 more
doaj   +1 more source

High Entropy–Driven Performance Enhancement in Perovskite Oxides for Energy Conversion and Storage Systems

open access: yesCarbon Energy, EarlyView.
High‐entropy perovskite oxides enable tunable structures and properties through multi‐cation disorder and entropy stabilization. This review summarizes advances in synthesis, structural and defect engineering, and their applications in OER/ORR, CO2RR, and electrochemical energy storage, highlighting in situ characterization and modeling that clarify ...
Obeylaw Moyo   +8 more
wiley   +1 more source

Mekanisme Aus Pahat Putar pada Pemesinan Magnesium AZ31

open access: yesRekayasa Mesin, 2020
Magnesium alloy is one of the most popular light material which was used in biomedical. Magnesium alloy is very light, resistant to corrosion and good biocompatible. However, magnesium alloy is  flammable, so it is effortless to burn.
Gusri Akhyar Ibrahim, Suryadiwansa Harun
doaj   +1 more source

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