Experimental Investigation on Drilling of AA2219-TiB2/ZrB2 In-situ Metal Matrix Composites
| Autor: | A. Mahamani |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Materials science
Flex assisted synthesis Drilling Alloy Composite number Delamination Stiffness General Medicine engineering.material Surface roughness Machining Hybrid in-situ reinforcements visual_art engineering visual_art.visual_art_medium medicine Drill bit Ceramic Composite material medicine.symptom |
| Zdroj: | Procedia Materials Science. 6:950-960 |
| ISSN: | 2211-8128 |
| DOI: | 10.1016/j.mspro.2014.07.165 |
| Popis: | Composite material is a development of high performance materials system, which posses the metallic and ceramic material characteristics. Aluminum matrix composites are attracted many researchers due to its improved mechanical properties and wear resistance with minimal weight. Among the various processing route, flex assisted synthesis is a highly potential and low cost method to produce in-situ composites. In-situ aluminum matrix composite has superior performance than the ex-situ composite because of the chemically dispersed reinforcements. The reinforcement phase created by this route is thermodynamically stable and chemically pure. These composites offer many advantages, including more bonding strength, fine, lack of agglomeration and uniform distribution of reinforcements. As a result, the mechanical properties, such as strength and stiffness, increase significantly. In the present work, flex assisted synthesis process is used to produce AA2219 - TiB2/ZrB2 in-situ aluminum matrix composite with the different reinforcement ratio. The present paper is aimed to study the effect of speed, feed rate, drill bit diameter and point angle on surface roughness and delamination in drilling the AA2219 - TiB2/ZrB2 in-situ aluminum matrix composite with the different reinforcement ratio. The experimental investigation was carried out to study effect of one machining parameter, other parameters are kept constant. The major contribution of this work was to study the effect of hybrid TiB2 and ZrB2 reinforcements in AA2219 alloy in drilling the composites. |
| Databáze: | OpenAIRE |
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