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Das, Prosenjit
- Microscale Crack Growth Studies in Rheocast A356 (Al-Si-Mg) Alloy Using Extended Finite Element Method
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Authors
Affiliations
1 NIT Durgapur, IN
2 CSIR-CMERI Durgapur, IN
3 Mechanical Engineering Dept., KGEC, Kalyani, IN
4 CSIR-CMERI, Durgapur, IN
1 NIT Durgapur, IN
2 CSIR-CMERI Durgapur, IN
3 Mechanical Engineering Dept., KGEC, Kalyani, IN
4 CSIR-CMERI, Durgapur, IN
Source
Indian Science Cruiser, Vol 34, No 1 (2020), Pagination: 30-38Abstract
Thixocasting [1] and Rheocasting [2] are the two methods available at present to produce semi solid slurry. Rheocasting unlike thixocasting does not require reheating of billet and semi solid slurry is developed from the molten metal produced in a typical die casting furnace. Rheocasting improves microstructure of die cast Al alloys significantly [2,3,4]. In the present work, Rheocasting had been performed employing cooling slope casting technique. With the help of cooling slope spherical primary crystals are produced which leads to better non dendritic microstructure. This offers improved mechanical properties such as good surface finish, net shape and enhanced accuracy [2]. Extended Finite Element Method [5,6,7] is utilized to simulate crack propagation in rheocast alloys to analyse their failure behaviour. In this research work, micro scale crack propagation in the rheocast alloys has been investigated numerically considering tensile loading condition. In this study, XFEM is used to simulate micro scale crack propagation and to study the effects of crack growth on different phases in alloy without the need of remeshing[8].References
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- An Investigation on Machinability during Turning Al-Mg2Si-Si Composite in Dry Condition
Abstract Views :235 |
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consideration with varying cutting tools. Latin square method is applied to find out
the effect of cutting velocity, feed as well as insert type onto force requirement.
Results show that in relatively high cutting velocity range, feed has significant effect
on forces. Under 60 –75 m/min cutting velocity with 0.06-0.08 mm/rev feed, good
machinability is obtained, and hence, these cutting conditions may be recommended
for application in the industry.
Authors
Affiliations
1 Department of Mechanical Engineering, Hooghly Engineering & Technology College, Hooghly- 712103, IN
2 Department of Mechanical Engineering, Kalyani Govt. Engineering College, Kalyani- 741235
3 Department of Mechanical Engineering, Kalyani Govt. Engineering College, Kalyani- 741235, IN
4 Indian Institute of Science Bangalore, Bengaluru- 560012, IN
1 Department of Mechanical Engineering, Hooghly Engineering & Technology College, Hooghly- 712103, IN
2 Department of Mechanical Engineering, Kalyani Govt. Engineering College, Kalyani- 741235
3 Department of Mechanical Engineering, Kalyani Govt. Engineering College, Kalyani- 741235, IN
4 Indian Institute of Science Bangalore, Bengaluru- 560012, IN
Source
Indian Science Cruiser, Vol 36, No 3 (2022), Pagination: 13-21Abstract
In this work, machinability study during turning of Al-Mg2Si-Si is taken intoconsideration with varying cutting tools. Latin square method is applied to find out
the effect of cutting velocity, feed as well as insert type onto force requirement.
Results show that in relatively high cutting velocity range, feed has significant effect
on forces. Under 60 –75 m/min cutting velocity with 0.06-0.08 mm/rev feed, good
machinability is obtained, and hence, these cutting conditions may be recommended
for application in the industry.
Keywords
Machining, turning, Al-Mg2Si-Si, cutting force, machinability, cutting toolReferences
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