Moving arc electrical discharge machining of polycrystalline diamond.
Saved in:
| Title: | Moving arc electrical discharge machining of polycrystalline diamond. |
|---|---|
| Authors: | Wang, Xiangzhi1,2 (AUTHOR), Li, Chaojiang3 (AUTHOR), Guo, Hun2 (AUTHOR), Li, Guangxian1 (AUTHOR), Ding, Songlin1 (AUTHOR) songlin.ding@rmit.edu.au |
| Source: | Materials & Manufacturing Processes. 2020, Vol. 35 Issue 4, p449-459. 11p. |
| Subjects: | Diamond turning, Electric arc, Rotating disk electrodes, Machining, Electric metal-cutting, Electric conductivity, Material erosion |
| Abstract: | Polycrystalline diamond (PCD) is a type of ultra-hard material that is widely used in the industry. However, the high manufacturing costs caused by low machining efficiency impede the affordability and application of products made of PCD. Electrical discharge machining (EDM) is a thermal erosion process using recurring electrical sparks to machine materials unrestricted by their physical properties such as hardness and is suitable for the fabrication of PCD products. However, as the electrical conductivity of PCD is poor, its machining efficiency is still very low. This paper proposed a novel high-efficiency machining method using moving arcs generated by a rotating disk electrode to enlarge the material erosion range of a single discharge. The principle and mechanism of the new method were introduced, and the theoretical analysis of the temperature field was performed. Experiments of single-pulse discharging were conducted together with comparative experiments to validate the results of theoretical analysis and investigate the machining performance of the new approach. The results show that moving arcs can increase the discharge probability and improve the stability of the machining process. Material removal rate could be increased by five times and surface roughness be reduced by 16.7%. [ABSTRACT FROM AUTHOR] |
| Copyright of Materials & Manufacturing Processes is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| FullText | Links: – Type: pdflink Text: Availability: 1 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 142313084 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Moving arc electrical discharge machining of polycrystalline diamond. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Wang%2C+Xiangzhi%22">Wang, Xiangzhi</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Chaojiang%22">Li, Chaojiang</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guo%2C+Hun%22">Guo, Hun</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Guangxian%22">Li, Guangxian</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ding%2C+Songlin%22">Ding, Songlin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> songlin.ding@rmit.edu.au</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Materials+%26+Manufacturing+Processes%22">Materials & Manufacturing Processes</searchLink>. 2020, Vol. 35 Issue 4, p449-459. 11p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Diamond+turning%22">Diamond turning</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+arc%22">Electric arc</searchLink><br /><searchLink fieldCode="DE" term="%22Rotating+disk+electrodes%22">Rotating disk electrodes</searchLink><br /><searchLink fieldCode="DE" term="%22Machining%22">Machining</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+metal-cutting%22">Electric metal-cutting</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+conductivity%22">Electric conductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Material+erosion%22">Material erosion</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Polycrystalline diamond (PCD) is a type of ultra-hard material that is widely used in the industry. However, the high manufacturing costs caused by low machining efficiency impede the affordability and application of products made of PCD. Electrical discharge machining (EDM) is a thermal erosion process using recurring electrical sparks to machine materials unrestricted by their physical properties such as hardness and is suitable for the fabrication of PCD products. However, as the electrical conductivity of PCD is poor, its machining efficiency is still very low. This paper proposed a novel high-efficiency machining method using moving arcs generated by a rotating disk electrode to enlarge the material erosion range of a single discharge. The principle and mechanism of the new method were introduced, and the theoretical analysis of the temperature field was performed. Experiments of single-pulse discharging were conducted together with comparative experiments to validate the results of theoretical analysis and investigate the machining performance of the new approach. The results show that moving arcs can increase the discharge probability and improve the stability of the machining process. Material removal rate could be increased by five times and surface roughness be reduced by 16.7%. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Materials & Manufacturing Processes is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=142313084 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/10426914.2020.1732413 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 449 Subjects: – SubjectFull: Diamond turning Type: general – SubjectFull: Electric arc Type: general – SubjectFull: Rotating disk electrodes Type: general – SubjectFull: Machining Type: general – SubjectFull: Electric metal-cutting Type: general – SubjectFull: Electric conductivity Type: general – SubjectFull: Material erosion Type: general Titles: – TitleFull: Moving arc electrical discharge machining of polycrystalline diamond. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Wang, Xiangzhi – PersonEntity: Name: NameFull: Li, Chaojiang – PersonEntity: Name: NameFull: Guo, Hun – PersonEntity: Name: NameFull: Li, Guangxian – PersonEntity: Name: NameFull: Ding, Songlin IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: 2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 10426914 Numbering: – Type: volume Value: 35 – Type: issue Value: 4 Titles: – TitleFull: Materials & Manufacturing Processes Type: main |
| ResultId | 1 |
