The performance of molybdenum toughened alumina cutting tools in turning a particulate metal matrix composite
In this paper, a study of the tool wear mechanism in turning aluminium alloy reinforced with alumina using molybdenum-toughened alumina tools is presented. Alumina tools with three different amounts (15, 20 and 25 vol.%) of molybdenum were prepared and tested. The wear type was identified and its ev...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2003-09, Vol.357 (1), p.369-375 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Lucchini, E. Lo Casto, S. Sbaizero, O. |
| description | In this paper, a study of the tool wear mechanism in turning aluminium alloy reinforced with alumina using molybdenum-toughened alumina tools is presented. Alumina tools with three different amounts (15, 20 and 25 vol.%) of molybdenum were prepared and tested. The wear type was identified and its evolution with cutting time was measured. The results show that the main mechanism of tool wear is abrasion and not heat. The best overall performance was achieved, as far as flank wear is concerned, using the tool with 20 vol.% of molybdenum added. This has been explained using some of the composites intrinsic properties. SEM examination revealed that molybdenum particles are easily torn from the matrix by flowing chips. Under these conditions the molybdenum particles are not able to carry out their toughening action and they are responsible for the flank wear. Some ideas have been proposed as to engineer the alumina/molybdenum interface in order to increase their adhesion and the composite toughness. |
| doi_str_mv | 10.1016/S0921-5093(03)00227-2 |
| format | Article |
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Alumina tools with three different amounts (15, 20 and 25 vol.%) of molybdenum were prepared and tested. The wear type was identified and its evolution with cutting time was measured. The results show that the main mechanism of tool wear is abrasion and not heat. The best overall performance was achieved, as far as flank wear is concerned, using the tool with 20 vol.% of molybdenum added. This has been explained using some of the composites intrinsic properties. SEM examination revealed that molybdenum particles are easily torn from the matrix by flowing chips. Under these conditions the molybdenum particles are not able to carry out their toughening action and they are responsible for the flank wear. Some ideas have been proposed as to engineer the alumina/molybdenum interface in order to increase their adhesion and the composite toughness.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/S0921-5093(03)00227-2</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Alumina ; Aluminum ; Applied sciences ; Composites ; Cutting ; Exact sciences and technology ; Machining. Machinability ; Metals. Metallurgy ; Production techniques ; Turning ; Wear</subject><ispartof>Materials science & engineering. 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A, Structural materials : properties, microstructure and processing</title><description>In this paper, a study of the tool wear mechanism in turning aluminium alloy reinforced with alumina using molybdenum-toughened alumina tools is presented. Alumina tools with three different amounts (15, 20 and 25 vol.%) of molybdenum were prepared and tested. The wear type was identified and its evolution with cutting time was measured. The results show that the main mechanism of tool wear is abrasion and not heat. The best overall performance was achieved, as far as flank wear is concerned, using the tool with 20 vol.% of molybdenum added. This has been explained using some of the composites intrinsic properties. SEM examination revealed that molybdenum particles are easily torn from the matrix by flowing chips. Under these conditions the molybdenum particles are not able to carry out their toughening action and they are responsible for the flank wear. Some ideas have been proposed as to engineer the alumina/molybdenum interface in order to increase their adhesion and the composite toughness.</description><subject>Alumina</subject><subject>Aluminum</subject><subject>Applied sciences</subject><subject>Composites</subject><subject>Cutting</subject><subject>Exact sciences and technology</subject><subject>Machining. Machinability</subject><subject>Metals. 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Machinability</topic><topic>Metals. Metallurgy</topic><topic>Production techniques</topic><topic>Turning</topic><topic>Wear</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lucchini, E.</creatorcontrib><creatorcontrib>Lo Casto, S.</creatorcontrib><creatorcontrib>Sbaizero, O.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lucchini, E.</au><au>Lo Casto, S.</au><au>Sbaizero, O.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The performance of molybdenum toughened alumina cutting tools in turning a particulate metal matrix composite</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>2003-09-25</date><risdate>2003</risdate><volume>357</volume><issue>1</issue><spage>369</spage><epage>375</epage><pages>369-375</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>In this paper, a study of the tool wear mechanism in turning aluminium alloy reinforced with alumina using molybdenum-toughened alumina tools is presented. Alumina tools with three different amounts (15, 20 and 25 vol.%) of molybdenum were prepared and tested. The wear type was identified and its evolution with cutting time was measured. The results show that the main mechanism of tool wear is abrasion and not heat. The best overall performance was achieved, as far as flank wear is concerned, using the tool with 20 vol.% of molybdenum added. This has been explained using some of the composites intrinsic properties. SEM examination revealed that molybdenum particles are easily torn from the matrix by flowing chips. Under these conditions the molybdenum particles are not able to carry out their toughening action and they are responsible for the flank wear. Some ideas have been proposed as to engineer the alumina/molybdenum interface in order to increase their adhesion and the composite toughness.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/S0921-5093(03)00227-2</doi><tpages>7</tpages></addata></record> |
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| ispartof | Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2003-09, Vol.357 (1), p.369-375 |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Alumina Aluminum Applied sciences Composites Cutting Exact sciences and technology Machining. Machinability Metals. Metallurgy Production techniques Turning Wear |
| title | The performance of molybdenum toughened alumina cutting tools in turning a particulate metal matrix composite |
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