Wear mechanisms of coated tools in high-speed hard turning of high strength steel

2017 ◽  
Vol 94 (9-12) ◽  
pp. 4553-4563 ◽  
Author(s):  
Guangming Zheng ◽  
Li Li ◽  
Zhiyong Li ◽  
Jun Gao ◽  
Zongwei Niu
Keyword(s):  
Wear Mechanisms ◽  
High Strength Steel ◽  
High Speed ◽  
Hard Turning ◽  
High Strength ◽  
Coated Tools

Cutting force, tool wear and surface roughness in high-speed milling of high-strength steel with coated tools

2019 ◽  
Vol 33 (11) ◽  
pp. 5393-5398 ◽  
Author(s):  
Yuan Li ◽  
Guangming Zheng ◽  
Xu Zhang ◽  
Xiang Cheng ◽  
Xianhai Yang ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Tool Wear ◽  
Cutting Force ◽  
High Strength Steel ◽  
High Speed ◽  
High Strength ◽  
High Speed Milling ◽  
Coated Tools

Study on the hybrid laser-arc welding of 3 mm thick high-strength steel with high speed

2018 ◽  
Vol 6 (2) ◽  
pp. 026546 ◽  
Author(s):  
Zhang Peilei ◽  
Gu Siyuan ◽  
Liu Zhengjun ◽  
Yu Zhishui
Keyword(s):  
High Strength Steel ◽  
Arc Welding ◽  
High Speed ◽  
High Strength ◽  
Hybrid Laser Arc Welding

Study on the Coated Tool Wear Mechanism of High Speed Milling Ni-Base Superalloy GH625

2012 ◽  
Vol 723 ◽  
pp. 311-316
Author(s):  
Wei Wang ◽  
Ming Hai Wang ◽  
Xiao Peng Li
Keyword(s):  
Wear Mechanisms ◽  
High Speed ◽  
High Speed Milling ◽  
Coated Tools ◽  
Coated Tool ◽  
Tool Wear Mechanism ◽  
Cemented Carbide Tools ◽  
Tools Wear ◽  
Coated Cemented Carbide ◽  
Base Superalloy

The experiments of high speed milling Ni-base superalloy GH625 by using two types of the coated cemented carbide tools at home and abroad, using the scanning electron microscopy (SEM) to observe the tools wear morphology, analyzing the worn surface elements distribution by energy spectrum analysis (EDS) and the main wear mechanisms of the tools. The results show that adhesion, oxidation and diffusion are the main wear mechanisms in initiative wearing stage of the domestic coated tools. And the main wear mechanisms of the imported coated tools are adhesion, oxidation, diffusion and coating spallation.

scholarly journals Evaluation of Notch Tensile Strength for High Strength Steel with Inclusions : In Case of Casting High Speed Steel

2009 ◽  
Vol 75 (760) ◽  
pp. 1764-1770
Author(s):  
Shigeru HAMADA ◽  
Suguru KASHIWAGI ◽  
Akio SONODA ◽  
Naoshi IZUMI ◽  
Hiroshi NOGUCHI
Keyword(s):  
Tensile Strength ◽  
High Strength Steel ◽  
High Speed ◽  
High Speed Steel ◽  
High Strength ◽  
Notch Tensile Strength

Study on Impact Crushing Properties of High Strength Steel Sheets

2011 ◽  
Vol 473 ◽  
pp. 376-381 ◽  
Author(s):  
Keiko Natori ◽  
Kenichi Watanabe ◽  
Tatsuya Tanaka ◽  
Yutaka Imaida
Keyword(s):  
High Strength Steel ◽  
High Speed ◽  
High Strength ◽  
Elastic Buckling ◽  
Effective Width ◽  
Steel Sheets ◽  
Impact Crushing ◽  
Deformation Strain Rate ◽  
High Possibility ◽  
Impact Absorption

The purpose of this study is to verify the validity of sheet buckling design based on the effective width theory investigation of impact crushing properties in high strength steel sheets. We clarify the need to make full sections effectively without elastic buckling occurring and consider the application of the effective width theory under high speed deformation. We report our findings of our investigation into the sheet buckling phenomenon with numerical simulation by varying deformation strain rate, mechanical property of material and member configuration. The results demonstrate that, with increasing crush speed, the cross section of a steel sheet become effective, while there is a high possibility of the buckling phenomenon that does not function as efficient impact absorption and is not evaluated with the existing theory.

scholarly journals Surface Integrity and Corrosion Resistance of 42CrMo4 High-Strength Steel Strengthened by Hard Turning

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6995
Author(s):  
Qingzhong Xu ◽  
Yan Liu ◽  
Haiyang Lu ◽  
Jichen Liu ◽  
Gangjun Cai
Keyword(s):  
Surface Roughness ◽  
Corrosion Resistance ◽  
Compressive Stress ◽  
Surface Integrity ◽  
High Strength Steel ◽  
Hard Turning ◽  
High Strength ◽  
Residual Compressive Stress ◽  
Surface Microhardness ◽  
Surface Corrosion

To improve the surface corrosion resistance of 42CrMo4 high-strength steel used in a marine environment, this article studied the effects of hard turning on the surface integrity and corrosion resistance of 42CrMo4 high-strength steel through the single factor experimental method, namely hard turning, polarization corrosion, electrochemical impedance spectroscopy, potentiodynamic polarization curve, and salt spray tests. The results indicated that the surface integrity was modified by the hard turning, with a surface roughness lower than Ra 0.8 μm, decreased surface microhardness, fine and uniform surface microstructure, and dominant surface residual compressive stress. The hard turning process was feasible to strengthen the surface corrosion resistance of 42CrMo4 high-strength steel. The better corrosion resistance of the surface layer than that of the substrate material can be ascribed to the uniform carbides and compact microstructure. The corrosion resistance varied with cutting speeds as a result of the changed surface microhardness and residual compressive stress, varied with feed rates as a result of the changed surface roughness, and varied with cutting depths as a result of the changed surface residual compressive stress, respectively. The surface integrity with smaller surface roughness and microhardness and bigger surface residual compressive stress was beneficial for corrosion resistance.

Tool Wear in High-Speed Turning Ultra-High Strength Steel Under Dry and CMQL Conditions

2020 ◽  
Vol 206 (1) ◽  
pp. 122-131
Author(s):  
Hui-Ping Zhang ◽  
Zhong-Shi Zhang ◽  
Zhi-Yun Zheng ◽  
Er-Liang Liu
Keyword(s):  
Tool Wear ◽  
High Strength Steel ◽  
High Speed ◽  
High Strength ◽  
High Speed Turning ◽  
Ultra High Strength Steel
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