Experimental Study on Efficient Short Electric Arc Turning of Titanium Alloy

This study investigates a novel short electric arc vertical turning method for machining titanium alloy shafts. The method was successfully applied to titanium alloy rods, and its effects on material removal rate (MRR), surface roughness, roundness, and cross-sectional morphology were analyzed at va...

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Main Authors: Guoyu Hu, Haotian Jiao, Wei Gao, Junfeng Zhang
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/15/2/122
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author Guoyu Hu
Haotian Jiao
Wei Gao
Junfeng Zhang
author_facet Guoyu Hu
Haotian Jiao
Wei Gao
Junfeng Zhang
author_sort Guoyu Hu
collection DOAJ
description This study investigates a novel short electric arc vertical turning method for machining titanium alloy shafts. The method was successfully applied to titanium alloy rods, and its effects on material removal rate (MRR), surface roughness, roundness, and cross-sectional morphology were analyzed at varying processing voltages. The results indicate that the MRR and surface quality improve with increased voltage, reaching a maximum of 231 mm<sup>3</sup>/min and 26 μm surface roughness at 32 V. However, surface roughness deteriorates with higher duty cycles and voltages due to unstable discharges. Roundness deviations are minimized with higher rotational speeds, which enhance uniform material removal and arc stability. Metallographic analysis revealed an increased heat-affected zone and recast layer thickness at higher voltages. This method demonstrates high machining efficiency and improved surface quality, making it suitable for titanium alloy shaft manufacturing in advanced engineering applications.
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publishDate 2025-01-01
publisher MDPI AG
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series Metals
spelling doaj-art-6c5bcd2d163543f082365321dd6b600a2025-08-20T02:44:39ZengMDPI AGMetals2075-47012025-01-0115212210.3390/met15020122Experimental Study on Efficient Short Electric Arc Turning of Titanium AlloyGuoyu Hu0Haotian Jiao1Wei Gao2Junfeng Zhang3Intelligent Manufacturing and Industrialization, Xinjiang University, Urumqi 830017, ChinaIntelligent Manufacturing and Industrialization, Xinjiang University, Urumqi 830017, ChinaIntelligent Manufacturing and Industrialization, Xinjiang University, Urumqi 830017, ChinaIntelligent Manufacturing and Industrialization, Xinjiang University, Urumqi 830017, ChinaThis study investigates a novel short electric arc vertical turning method for machining titanium alloy shafts. The method was successfully applied to titanium alloy rods, and its effects on material removal rate (MRR), surface roughness, roundness, and cross-sectional morphology were analyzed at varying processing voltages. The results indicate that the MRR and surface quality improve with increased voltage, reaching a maximum of 231 mm<sup>3</sup>/min and 26 μm surface roughness at 32 V. However, surface roughness deteriorates with higher duty cycles and voltages due to unstable discharges. Roundness deviations are minimized with higher rotational speeds, which enhance uniform material removal and arc stability. Metallographic analysis revealed an increased heat-affected zone and recast layer thickness at higher voltages. This method demonstrates high machining efficiency and improved surface quality, making it suitable for titanium alloy shaft manufacturing in advanced engineering applications.https://www.mdpi.com/2075-4701/15/2/122short electric arc turningtitanium alloymachining efficiencysurface roughnessroundness
spellingShingle Guoyu Hu
Haotian Jiao
Wei Gao
Junfeng Zhang
Experimental Study on Efficient Short Electric Arc Turning of Titanium Alloy
Metals
short electric arc turning
titanium alloy
machining efficiency
surface roughness
roundness
title Experimental Study on Efficient Short Electric Arc Turning of Titanium Alloy
title_full Experimental Study on Efficient Short Electric Arc Turning of Titanium Alloy
title_fullStr Experimental Study on Efficient Short Electric Arc Turning of Titanium Alloy
title_full_unstemmed Experimental Study on Efficient Short Electric Arc Turning of Titanium Alloy
title_short Experimental Study on Efficient Short Electric Arc Turning of Titanium Alloy
title_sort experimental study on efficient short electric arc turning of titanium alloy
topic short electric arc turning
titanium alloy
machining efficiency
surface roughness
roundness
url https://www.mdpi.com/2075-4701/15/2/122
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AT haotianjiao experimentalstudyonefficientshortelectricarcturningoftitaniumalloy
AT weigao experimentalstudyonefficientshortelectricarcturningoftitaniumalloy
AT junfengzhang experimentalstudyonefficientshortelectricarcturningoftitaniumalloy