% 11.+சالعنوان9:27>ہر개onlyJonShow that the critical speed of horizontal mold in true centrifugal casting can begiven as:30N₂ =√g/R۱/۱incluseostion|||[A]OI =T☑M

at critical speed of horizontal casting weight of casting (liquid metal ) = centrifugal force…

Answered: % 11. + ச العنوان 9:27 > ہر 개 only Jon…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A vertical true centrifugal casting process is used to produce bushings that are 200 mm long and 200 mm in outside diameter. If the rotational speed during solidification is 500 rev/min, determine the inside diameter at the top of the bushing if the inside diameter at the bottom is 150 mm? Ans. Dt = 167.98 mm.
Volume flow rate ?? Solve in 10min please
EX.3//A cylindrical riser must be designed for a sand-casting mold. The casting itself is a steel rectangular plate with dimensions 7.5 cm x 12.5 cm x 2.0 cm. Previous observations have indicated that the total solidification time (TTs) for this casting =1.6 min. The cylinder for the riser will have a diameter-to-height ratio=1.0. Determine the dimensions of the riser so that its TTS = 2.0 min.
: True centrifugal casting is performed horizontally to make large diameter copper tube sections. The tubes have a length= 1.0 m, diameter= 0.25 m, and wall thickness = 15 mm. (a) If the rotational speed of the pipe = 700 rev/min, determine the G-factor on the molten metal. (b) What volume of molten metal must be poured into the mold to make the casting if solidification shrinkage and contraction after solidification are considered? Solidification shrinkage for copper = 4.5%, and solid thermal contraction = 7.5%? %3D
requirement : a good understandable handwriting and answer in step by step procedure with good arrangement
Q no:10
3. (Slow or Fast, which one? – Circle one) cooling rates results in coarse dendritic structures. 4. The higher the viscosity of the melt, the . its fluidity? 5. Name 3 defects in casting: 6. Internal or external are an effective means of reducing shrinkage porosity during solidification. 7. Is green-sand molding expensive? 8. .... are inserts placed in the molds to form the hollow regions in casting. 9. The method of casting turbine blades: Sample A 10. Which one has higher stiffness? Sample A or Sample B Sample B 11. Which one has higher toughness? Sample A or Sample B 12. Which one has higher strength? Sample A or Sample B 13. Which one has higher ductility? Sample A or Sample 14. Higher ......... means more rigidity. Strain 15. Before the no-slip point, the velocity is (higher or lower, which one? - Circle one) 16. In flat-rolling process, using smaller diameter rolls (increases or decreases, which one? - Circle one) the roll force. 17. Balls for ball bearings can be made by rolling…
A vertical centrifugal casting process is used to produce bushings that are 0.2 m outside diameter and 0.2 m in long. If the rotational speed during solidification is 500 rpm, determine the inside diameter at the bottom of the bushing if the diameter at the top is 0.084 m. * Add file
(3):-The suitable type of casting to making tubs and cylinders is by a --- a- Lost wax casting b- Centrifugal casting c- Sand casting d- Continuous casting (4):- The surface of product Extruded by ----- Extrusion process has high smooth a- Hot b- Cold e- Warm (5):- High temperature leads to ----- he metal's ability to form a- Decreases b- Increases c- Non affected on
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identify some of the important advantages of shape-casting process
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% 11. + ச العنوان 9:27 > ہر 개 only Jon Show that the critical speed of horizontal mold in true centrifugal casting can be given as: 30 N₂ = √g/R ۱/۱ incluse ostion ||| [A] O I =T ☑ M