STUDY ON THE EFFECT OF ROLLING STRENGTHENING ON THE SURFACE INTEGRITY OF 45 STEEL THREAD ROOT
The self-made thread root rolling strengthening device based on common lathe CA6140 was used to perform rolling strengthening process on 45 steel thread samples. The surface integrity parameters such as surface roughness, surface microhardness, residual stress and surface microstructure of thread ro...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Strength
2022-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.05.09 |
| _version_ | 1797767601069228032 |
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| author | WANG Dong LU XinXi ZHAO JingWen LIN HongXu ZHANG Meng |
| author_facet | WANG Dong LU XinXi ZHAO JingWen LIN HongXu ZHANG Meng |
| author_sort | WANG Dong |
| collection | DOAJ |
| description | The self-made thread root rolling strengthening device based on common lathe CA6140 was used to perform rolling strengthening process on 45 steel thread samples. The surface integrity parameters such as surface roughness, surface microhardness, residual stress and surface microstructure of thread root after rolling were measured by using three-dimensional topography measurement instrument, microhardness tester, X-ray residual stress detector and ultra-depth of field microscope. The effect of rolling strengthening parameters on the surface integrity of thread root was investigated by single factor test. After the 45 steel thread sample underwent the rolling strengthening process, the surface roughness S<sub>a</sub> of the thread root is reduced from 1.71 μm to 0.874 μm; the thread root forms an obvious grain refinement layer with a depth of 120 μm; the microhardness increases from 199.3 HV to 379.5 HV, and the hardening degree N=90.4%; the residual stress of the surface layer is distributed in a spoon shape, and the residual stress reaches a peak value of-542 MPa at 105 μm from the surface, and the depth of the residual compressive stress layer can reach 700 μm. The results show that the rolling strengthening process can significantly improve the surface integrity of the thread root, and the rolling depth has the most significant effect. |
| first_indexed | 2024-03-12T20:42:09Z |
| format | Article |
| id | doaj.art-6dd8790ad0004750be00d80796f9e474 |
| institution | Directory Open Access Journal |
| issn | 1001-9669 |
| language | zho |
| last_indexed | 2024-03-12T20:42:09Z |
| publishDate | 2022-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj.art-6dd8790ad0004750be00d80796f9e4742023-08-01T07:54:29ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692022-01-01441075108131951214STUDY ON THE EFFECT OF ROLLING STRENGTHENING ON THE SURFACE INTEGRITY OF 45 STEEL THREAD ROOTWANG DongLU XinXiZHAO JingWenLIN HongXuZHANG MengThe self-made thread root rolling strengthening device based on common lathe CA6140 was used to perform rolling strengthening process on 45 steel thread samples. The surface integrity parameters such as surface roughness, surface microhardness, residual stress and surface microstructure of thread root after rolling were measured by using three-dimensional topography measurement instrument, microhardness tester, X-ray residual stress detector and ultra-depth of field microscope. The effect of rolling strengthening parameters on the surface integrity of thread root was investigated by single factor test. After the 45 steel thread sample underwent the rolling strengthening process, the surface roughness S<sub>a</sub> of the thread root is reduced from 1.71 μm to 0.874 μm; the thread root forms an obvious grain refinement layer with a depth of 120 μm; the microhardness increases from 199.3 HV to 379.5 HV, and the hardening degree N=90.4%; the residual stress of the surface layer is distributed in a spoon shape, and the residual stress reaches a peak value of-542 MPa at 105 μm from the surface, and the depth of the residual compressive stress layer can reach 700 μm. The results show that the rolling strengthening process can significantly improve the surface integrity of the thread root, and the rolling depth has the most significant effect.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.05.09Rolling strengthening;Thread root;Surface roughness;Microhardness;Residual stress |
| spellingShingle | WANG Dong LU XinXi ZHAO JingWen LIN HongXu ZHANG Meng STUDY ON THE EFFECT OF ROLLING STRENGTHENING ON THE SURFACE INTEGRITY OF 45 STEEL THREAD ROOT Jixie qiangdu Rolling strengthening;Thread root;Surface roughness;Microhardness;Residual stress |
| title | STUDY ON THE EFFECT OF ROLLING STRENGTHENING ON THE SURFACE INTEGRITY OF 45 STEEL THREAD ROOT |
| title_full | STUDY ON THE EFFECT OF ROLLING STRENGTHENING ON THE SURFACE INTEGRITY OF 45 STEEL THREAD ROOT |
| title_fullStr | STUDY ON THE EFFECT OF ROLLING STRENGTHENING ON THE SURFACE INTEGRITY OF 45 STEEL THREAD ROOT |
| title_full_unstemmed | STUDY ON THE EFFECT OF ROLLING STRENGTHENING ON THE SURFACE INTEGRITY OF 45 STEEL THREAD ROOT |
| title_short | STUDY ON THE EFFECT OF ROLLING STRENGTHENING ON THE SURFACE INTEGRITY OF 45 STEEL THREAD ROOT |
| title_sort | study on the effect of rolling strengthening on the surface integrity of 45 steel thread root |
| topic | Rolling strengthening;Thread root;Surface roughness;Microhardness;Residual stress |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.05.09 |
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