FRACTURE ANALYSIS AND IMPROVEMENT OF BALL SCREW STEPPED SHAFT

The stepped shaft of ball screw was breakaway after loading test of transmission mechanism. To solve this problem,analysis and calculations were carried out from higher hardness,material defect,machining process and experimental loading. The results show that electro discharge machining( EDM) causes...

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Main Authors: NIE QingFeng, YU DongHui, LI HaiHong
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Strength 2018-01-01
Series:Jixie qiangdu
Subjects:
Online Access:http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.03.038
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author NIE QingFeng
YU DongHui
LI HaiHong
author_facet NIE QingFeng
YU DongHui
LI HaiHong
author_sort NIE QingFeng
collection DOAJ
description The stepped shaft of ball screw was breakaway after loading test of transmission mechanism. To solve this problem,analysis and calculations were carried out from higher hardness,material defect,machining process and experimental loading. The results show that electro discharge machining( EDM) causes tensile stress and microcosmic cracks on the surface microstructure. Meanwhile,thread corrosion of stepped shaft reduces the loaded area. As a result,torsional fracture of the stepped shaft happened. According to the result,improvement measures including process criterion of EDM control,grinding and polishing are proposed.
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spelling doaj.art-608ac707ae7d40e982e250a0d7601d432025-01-15T02:32:02ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692018-01-014074574830601753FRACTURE ANALYSIS AND IMPROVEMENT OF BALL SCREW STEPPED SHAFTNIE QingFengYU DongHuiLI HaiHongThe stepped shaft of ball screw was breakaway after loading test of transmission mechanism. To solve this problem,analysis and calculations were carried out from higher hardness,material defect,machining process and experimental loading. The results show that electro discharge machining( EDM) causes tensile stress and microcosmic cracks on the surface microstructure. Meanwhile,thread corrosion of stepped shaft reduces the loaded area. As a result,torsional fracture of the stepped shaft happened. According to the result,improvement measures including process criterion of EDM control,grinding and polishing are proposed.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.03.038Ball ScrewStepped shaftFracture
spellingShingle NIE QingFeng
YU DongHui
LI HaiHong
FRACTURE ANALYSIS AND IMPROVEMENT OF BALL SCREW STEPPED SHAFT
Jixie qiangdu
Ball Screw
Stepped shaft
Fracture
title FRACTURE ANALYSIS AND IMPROVEMENT OF BALL SCREW STEPPED SHAFT
title_full FRACTURE ANALYSIS AND IMPROVEMENT OF BALL SCREW STEPPED SHAFT
title_fullStr FRACTURE ANALYSIS AND IMPROVEMENT OF BALL SCREW STEPPED SHAFT
title_full_unstemmed FRACTURE ANALYSIS AND IMPROVEMENT OF BALL SCREW STEPPED SHAFT
title_short FRACTURE ANALYSIS AND IMPROVEMENT OF BALL SCREW STEPPED SHAFT
title_sort fracture analysis and improvement of ball screw stepped shaft
topic Ball Screw
Stepped shaft
Fracture
url http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.03.038
work_keys_str_mv AT nieqingfeng fractureanalysisandimprovementofballscrewsteppedshaft
AT yudonghui fractureanalysisandimprovementofballscrewsteppedshaft
AT lihaihong fractureanalysisandimprovementofballscrewsteppedshaft