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1 MAHARASHTRA INSTITUTE OF TECHNOLOGY , PUNE
Seminar on SQUEEZE CASTING PROCESS
Seminar byDIPANSHU KAWLE(308030)
Guided byProf. G.P.BORIKAR
MIT Pune
2 Contents
1. Introduction
2. Squeeze casting
3. Working
4. Process parameters
5. Case study
6. Advantages & Disadvantages
7. Applications
8. Conclusion
9. References
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3SQUEEZE CASTING
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4 Introduction Also known as liquid-metal forging.
Near net shape process - the initial production of the item is very close to the final (net) shape, reducing the need for surface finishing.
Combination of casting and forging.
Squeeze casting is simple and economical, efficient in its use of raw material.
The process generates the highest mechanical properties attainable in a cast product .
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5Squeeze casting process working
Squeeze casting consists of entering liquid metal into a preheated, lubricated die and forging the metal while it solidifies
The load is applied shortly after the metal begins to freeze and is maintained until the entire casting has solidified
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6 Casting parameters Casting temperatures depend on the alloy and the part geometry. The starting
point is normally 6 to 55°C above the liquidus temperature.
Tooling temperatures ranging from 190 to 315°C are normally used
Pressure levels of 50 to 140 MPa are normally used
Lubrication For aluminum, magnesium, and copper alloys, a good grade of colloidal graphite spray lubricant has proved satisfactory when sprayed on the warm dies prior to casting
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7 Case Study Effects Of Squeeze Casting Process Parameters On Density Of
Lm20 AlloyThe experiment are carried out at different squeeze casting condition to know the effect of process parameters such as squeeze pressure,Pressure duration,,Time delay & Die temperature.
Experiments were conducted by varying one parameter at a time and keeping the rest of other process parameters constant.
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8 Effects of Process Parameters Effects Of Time Delay
Effects Of Pressure Duration
Effects Of Squeeze Pressure
Effects of Pouring temperature
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10 Advantages
Little or no machining required post casting process
Low levels of porosity
Good surface texture
Fine micro-structures with higher strength components
No waste material, 100% utilization
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11 Disadvantages Costs are very high due to complex tooling
No flexibility as tooling is dedicated to specific components
Process needs to be accurately controlled which slows the cycle time down and increases process costs.
High costs mean high production volumes are necessary to justify equipment investment
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12 Applications of Squeeze Casting The squeeze casting has been commercially succeeded in
manufacturing parts include an Aluminium dome , ductile Iron mortar shell, and a Steel bevel gear.
Aluminium automotive wheels and pistons, and gear blanks made of brass and bronze.
Compared with the HPDC, the squeeze casting process with high applied pressure is a promising solution for thick magnesium castings
Other parts that have been Squeeze cast include stainless steel blades, super alloy discs,
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13 Conclusion In conclusion, squeeze casting technology can greatly improve the
performance of aluminum alloys and other light alloys;
promote the utilization of aluminum alloys instead of steel;
reduce the weight of automobile, machinery equipment and military equipment;
promote energy conservation and environmental protection.
Finally, squeeze casting technology can greatly lessen the impurity restriction in raw material.
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14 REFERENCES Najib Souissi ,Slim Souissi , Christophe Le Niniven , Mohamed Ben Amar , Chedly Bradai
and Foued Elhalouani “ Optimization of Squeeze Casting Parameters for 2017 A Wrought Al
Alloy Using Taguchi Method “
Maleki, A.; Shafyei, A.; Niroumand, B. Effects of squeeze casting parameters on the microstructure of LM13 alloy. J. Mater. Process. Technol. 2009, 209, 3790–3797.
Manjunath Patel G. C1, Robins Mathew, and Prasad Krishna, “Effects of Squeeze Casting
Process Parameters on Density” Department of Mechanical Engineering, National Institute of
Technology Karnataka , Elsevier, 2013
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15
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