: +0usãoالعنوانontoA vertical true centrifugal casting process is used to produce bushings that are 250 mmlong and 200 mm in outside diameter. If the rotational speed during solidification is 500rev/min, determine the inside radii at the top and bottom of the bushing if R-2R. Take:-9.81 mis۲/۱ostrar

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Answered: : +0 usão العنوان on to A vertical true…

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 250 mm long and 200 mm in outside diameter. If the rotational speed during solidification is 500 rev/min, determine the inside radii at the top and bottom of the bushing if R-2Rb. Take: 8-9.81 m/s
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.
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.
a riser in the shape of a sphere is to be designed for a sand casting mold. the casting is a rectangular plate, with length 200mm, width 100mm, and thickness 18mm. if the total solidification time of the casting itself is known to be 3.5 mm, determine the diameter of the riser so that it will take 25% longer for the riser to solidify. assume a value of 2 for ‘n’ m( the exponent in chvorinov’s rule). know the volume and surface area of a sphere.
(9,00 Puanlar) A riser in the shape of a sphere is to be designed for a sand casting mold. The casting is a rectangular plate, with 8- length 50 cm, width = 35 cm, and thickness = 4 cm. If the total solidification time of the casting itself is known to be 7,5 min, determine the diameter of the riser so that it will take 30% longer for the riser to solidify. %3D Riser volume: V3(TD3)/6(D%3Ddiameter) Riser area: A=TD2 Casting volume: V-L-Wt (L-Length, W=width, t-thickness) a) 8,41 cm b) O 7,34 cm c) 6.62 cm 11,46 cm Boş bırak KÖnceki 8/43 Sonraki> Каpat
Only answer question 4
25. A riser in the shape of a sphere is to be designed for a sand casting mold. The casting is a rectangular plate, with length = 200 mm, width = 100 mm, and thickness = 22 mm. If the total solidification time of the casting itself is known to be 3.5 min, determine the diameter of the riser so that it will take 25% longer for the riser to solidify.
Plzz help
Parvinbhai
Ratio of solidification time of a cylindrical casting (height = radius) to the cubic casting of side two times the height of cylindrical casting is %3D
A riser in the shape of a sphere is to be designed for a sand casting mould at Simon Castings. The casting is a rectangular plate, with length = 400 mm, width = 250 mm, and thickness = 15 mm. If the total solidification time of the casting itself is known to be 7 min, determine the diameter of the riser so that it will take 30% longer for the riser to solidify.
2. A 10-inch x 10-inch x 0.75-inch plate casting is produced with a steel alloy with p = 0.28 lb/in³ (= 7.75 g/cm³). Two third of the steel plate casting volume should be added more into the original one, and all molten metal should be poured in 10 seconds. The cylindrical, tapered sprue height is 4 inches. The sprue has a cylindrical base and is connected to two runners. Each runner with a square vertical cross-section is connected to two gates. The gate has a rectangular vertical cross-section, and its width is three times the height. 0.75 inch Cylindrical Square Rectangular sprue base gate runner Steel alloy casting Note that drawings are not to actual scale or ratios. Area of a sprue base's horizontal cross-section The ratio of the cylindrical sprue base's horizontal cross-sectional area to the sum of two runners' vertical cross-sectional areas to the sum of four gates' vertical cross-sectional areas is 1:2:3. The sum of areas of two runners' vertical cross-sections 1 2 Note that…

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