Milling of an Aluminium Matrix Composite Using MCD-Tipped Tools with Adjusted Corner and Minor Cutting Edge Geometries
Aluminium matrix composites (AMCs) represent suitable materials for lightweight design applications. The abrasive ceramic reinforcements typically require diamond cutting materials to prevent excessive tool wear. In milling with diamond cutting materials the influence of cutting parameters was alrea...
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| Format: | Article |
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MDPI AG
2021-09-01
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| Series: | Journal of Composites Science |
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| Online Access: | https://www.mdpi.com/2504-477X/5/9/235 |
| _version_ | 1797518638530428928 |
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| author | Benjamin Clauß Andreas Schubert |
| author_facet | Benjamin Clauß Andreas Schubert |
| author_sort | Benjamin Clauß |
| collection | DOAJ |
| description | Aluminium matrix composites (AMCs) represent suitable materials for lightweight design applications. The abrasive ceramic reinforcements typically require diamond cutting materials to prevent excessive tool wear. In milling with diamond cutting materials the influence of cutting parameters was already examined to a significant extent. Investigations concerning the effect of modified tool geometries are limited and the potentials with regard to the geometrical and physical surface properties are unclear. Accordingly, experimental investigations in milling of a 10 vol.% <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>SiC</mi></semantics></math></inline-formula> particle-reinforced aluminium wrought alloy EN AW-2017 T4 were addressed. The effect of modified corner and minor cutting edge geometries were investigated based on mono crystalline diamond (MCD)-tipped tools to benefit stable process conditions. The results indicated achievable areal roughness values in the range around <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>0.2</mn><mspace width="0.166667em"></mspace><mi mathvariant="sans-serif">μ</mi><mi mathvariant="normal">m</mi></mrow></semantics></math></inline-formula>. Especially the application of the lowest cutting edge angle and a trailing minor cutting edge led to strong fluctuations of the surface parameters. The lowest valley void volumes were achieved with an arched minor cutting edge. Generally, finish machining led to stronger compressive residual stresses compared to the state prior to machining. The strongest increase was achieved using a corner radius combined with a straight minor cutting edge. It is concluded that reduced effective radii generating the surface enable an acceptable surface structure and strong compressive residual stresses and should be addressed in further investigations. |
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| id | doaj.art-0f4e6db7007840a1962e8138e5d4ca10 |
| institution | Directory Open Access Journal |
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| language | English |
| last_indexed | 2024-03-10T07:32:33Z |
| publishDate | 2021-09-01 |
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| series | Journal of Composites Science |
| spelling | doaj.art-0f4e6db7007840a1962e8138e5d4ca102023-11-22T13:42:50ZengMDPI AGJournal of Composites Science2504-477X2021-09-015923510.3390/jcs5090235Milling of an Aluminium Matrix Composite Using MCD-Tipped Tools with Adjusted Corner and Minor Cutting Edge GeometriesBenjamin Clauß0Andreas Schubert1Professorship of Micromanufacturing Technology, Department of Mechanical Engineering, Chemnitz University Technology, Reichenhainer Str. 70, 09126 Chemnitz, GermanyProfessorship of Micromanufacturing Technology, Department of Mechanical Engineering, Chemnitz University Technology, Reichenhainer Str. 70, 09126 Chemnitz, GermanyAluminium matrix composites (AMCs) represent suitable materials for lightweight design applications. The abrasive ceramic reinforcements typically require diamond cutting materials to prevent excessive tool wear. In milling with diamond cutting materials the influence of cutting parameters was already examined to a significant extent. Investigations concerning the effect of modified tool geometries are limited and the potentials with regard to the geometrical and physical surface properties are unclear. Accordingly, experimental investigations in milling of a 10 vol.% <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>SiC</mi></semantics></math></inline-formula> particle-reinforced aluminium wrought alloy EN AW-2017 T4 were addressed. The effect of modified corner and minor cutting edge geometries were investigated based on mono crystalline diamond (MCD)-tipped tools to benefit stable process conditions. The results indicated achievable areal roughness values in the range around <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>0.2</mn><mspace width="0.166667em"></mspace><mi mathvariant="sans-serif">μ</mi><mi mathvariant="normal">m</mi></mrow></semantics></math></inline-formula>. Especially the application of the lowest cutting edge angle and a trailing minor cutting edge led to strong fluctuations of the surface parameters. The lowest valley void volumes were achieved with an arched minor cutting edge. Generally, finish machining led to stronger compressive residual stresses compared to the state prior to machining. The strongest increase was achieved using a corner radius combined with a straight minor cutting edge. It is concluded that reduced effective radii generating the surface enable an acceptable surface structure and strong compressive residual stresses and should be addressed in further investigations.https://www.mdpi.com/2504-477X/5/9/235aluminium matrix compositemono crystalline diamondparticle-reinforcedsilicon carbidewrought alloypowder metallurgical |
| spellingShingle | Benjamin Clauß Andreas Schubert Milling of an Aluminium Matrix Composite Using MCD-Tipped Tools with Adjusted Corner and Minor Cutting Edge Geometries Journal of Composites Science aluminium matrix composite mono crystalline diamond particle-reinforced silicon carbide wrought alloy powder metallurgical |
| title | Milling of an Aluminium Matrix Composite Using MCD-Tipped Tools with Adjusted Corner and Minor Cutting Edge Geometries |
| title_full | Milling of an Aluminium Matrix Composite Using MCD-Tipped Tools with Adjusted Corner and Minor Cutting Edge Geometries |
| title_fullStr | Milling of an Aluminium Matrix Composite Using MCD-Tipped Tools with Adjusted Corner and Minor Cutting Edge Geometries |
| title_full_unstemmed | Milling of an Aluminium Matrix Composite Using MCD-Tipped Tools with Adjusted Corner and Minor Cutting Edge Geometries |
| title_short | Milling of an Aluminium Matrix Composite Using MCD-Tipped Tools with Adjusted Corner and Minor Cutting Edge Geometries |
| title_sort | milling of an aluminium matrix composite using mcd tipped tools with adjusted corner and minor cutting edge geometries |
| topic | aluminium matrix composite mono crystalline diamond particle-reinforced silicon carbide wrought alloy powder metallurgical |
| url | https://www.mdpi.com/2504-477X/5/9/235 |
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