The Influence of Different Assist Gases on Ductile Cast Iron Cutting by CO2 Laser
This article deals with the technology and principles of the laser cutting of ductile cast iron. The properties of the CO2 laser beam, input parameters of the laser cutting, assist gases, the interaction of cut material and the stability of cutting process are described. The commonly used material (...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2017-12-01
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| Series: | Archives of Foundry Engineering |
| Subjects: | |
| Online Access: | http://www.degruyter.com/view/j/afe.2017.17.issue-4/afe-2017-0139/afe-2017-0139.xml?format=INT |
| _version_ | 1797707603294289920 |
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| author | Meško J. Nigrovič R. Zrak A. |
| author_facet | Meško J. Nigrovič R. Zrak A. |
| author_sort | Meško J. |
| collection | DOAJ |
| description | This article deals with the technology and principles of the laser cutting of ductile cast iron. The properties of the CO2 laser beam, input parameters of the laser cutting, assist gases, the interaction of cut material and the stability of cutting process are described. The commonly used material (nodular cast iron - share of about 25% of all castings on the market) and the method of the laser cutting of that material, including the technological parameters that influence the cutting edge, are characterized. Next, the application and use of this method in mechanical engineering practice is described, focusing on fixing and renovation of mechanical components such as removing the inflow gate from castings with the desired quality of the cut, without the further using of the chip machining technology. Experimental samples from the nodular cast iron were created by using different technological parameters of laser cutting. The heat affected zone (HAZ), its width, microstructure and roughness parameter Pt was monitored on the experimental samples (of thickness t = 13 mm). The technological parameters that were varied during the experiments included the type of assist gases (N2 and O2), to be more specific the ratio of gases, and the cutting speed, which ranged from 1.6 m/min to 0.32 m/min. Both parameters were changed until the desired properties were achieved. |
| first_indexed | 2024-03-12T06:08:48Z |
| format | Article |
| id | doaj.art-9d4e33bca3564820948ad50818c3b4c8 |
| institution | Directory Open Access Journal |
| issn | 2299-2944 |
| language | English |
| last_indexed | 2024-03-12T06:08:48Z |
| publishDate | 2017-12-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Foundry Engineering |
| spelling | doaj.art-9d4e33bca3564820948ad50818c3b4c82023-09-03T03:20:28ZengPolish Academy of SciencesArchives of Foundry Engineering2299-29442017-12-0117410911410.1515/afe-2017-0139afe-2017-0139The Influence of Different Assist Gases on Ductile Cast Iron Cutting by CO2 LaserMeško J.0Nigrovič R.1Zrak A.2Department of Technological Engineering, University of Zilina, Univerzitna 1, 010 26 Zilina, SlovakiaDepartment of Technological Engineering, University of Zilina, Univerzitna 1, 010 26 Zilina, SlovakiaDepartment of Technological Engineering, University of Zilina, Univerzitna 1, 010 26 Zilina, SlovakiaThis article deals with the technology and principles of the laser cutting of ductile cast iron. The properties of the CO2 laser beam, input parameters of the laser cutting, assist gases, the interaction of cut material and the stability of cutting process are described. The commonly used material (nodular cast iron - share of about 25% of all castings on the market) and the method of the laser cutting of that material, including the technological parameters that influence the cutting edge, are characterized. Next, the application and use of this method in mechanical engineering practice is described, focusing on fixing and renovation of mechanical components such as removing the inflow gate from castings with the desired quality of the cut, without the further using of the chip machining technology. Experimental samples from the nodular cast iron were created by using different technological parameters of laser cutting. The heat affected zone (HAZ), its width, microstructure and roughness parameter Pt was monitored on the experimental samples (of thickness t = 13 mm). The technological parameters that were varied during the experiments included the type of assist gases (N2 and O2), to be more specific the ratio of gases, and the cutting speed, which ranged from 1.6 m/min to 0.32 m/min. Both parameters were changed until the desired properties were achieved.http://www.degruyter.com/view/j/afe.2017.17.issue-4/afe-2017-0139/afe-2017-0139.xml?format=INTDuctile cast ironLaser cuttingMicrostructureHAZAssist gas |
| spellingShingle | Meško J. Nigrovič R. Zrak A. The Influence of Different Assist Gases on Ductile Cast Iron Cutting by CO2 Laser Archives of Foundry Engineering Ductile cast iron Laser cutting Microstructure HAZ Assist gas |
| title | The Influence of Different Assist Gases on Ductile Cast Iron Cutting by CO2 Laser |
| title_full | The Influence of Different Assist Gases on Ductile Cast Iron Cutting by CO2 Laser |
| title_fullStr | The Influence of Different Assist Gases on Ductile Cast Iron Cutting by CO2 Laser |
| title_full_unstemmed | The Influence of Different Assist Gases on Ductile Cast Iron Cutting by CO2 Laser |
| title_short | The Influence of Different Assist Gases on Ductile Cast Iron Cutting by CO2 Laser |
| title_sort | influence of different assist gases on ductile cast iron cutting by co2 laser |
| topic | Ductile cast iron Laser cutting Microstructure HAZ Assist gas |
| url | http://www.degruyter.com/view/j/afe.2017.17.issue-4/afe-2017-0139/afe-2017-0139.xml?format=INT |
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