Magnesium is to be used in a casting operation. Determine the mass (in kg) of the molten...
Magnesium is to be used in a casting operation. Determine the
mass (in kg) of the molten magnesium that should be used
to cast a cubic part that has a side length of 350 mm.
Magnesium has the following properties: density of 1740 kg/m3,
solidification shrinkage of 6%, linear thermal contraction of 2%,
and machining allowance of 5 mm per dimension.
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Magnesium is to be used in a casting operation. Determine the
mass (in kg) of the molten...
(Metal-Casting Processes) (Groups) 10.47 A round casting is 0.2 m in diameter and 0.75 m in...
(Metal-Casting Processes) (Groups) 10.47 A round casting is 0.2 m in diameter and 0.75 m in length. Another casting of the same metal is elliptical in cross-section, with a major-to-minor axis ratio of 2, and has the same length and cross-sectional area as the round casting. Both pieces are cast under the same conditions. What is the difference in the solidification times of the two castings? 10.48 A cylinder with a diameter of 50 mm and a height of 75...
. In casting experiments performed using a certain alloy and type of sand mold, it took...
. In casting experiments performed using a certain alloy and type of sand mold, it took 170 sec for a cube-shaped casting to solidify. The cube was 50 mm on a side. (a) Determine the value of the mold constant in Chvorinov's rule. (b) If the same alloy and mold type were used, find the total solidification time for a cylindrical casting in which the diameter 50 mm and length- 50 mm. Page 6 of 12 1.13. The housing for...
An uninflated balloon of mass 6.00 x 10 kg has a volume of 7.10 x 10-2 m3 when fully inflated with a mixture of heli...
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i need answer of questions from 11 to 30 1. Define manufacturing and list major manufacturing processes that are emp...
i need answer of questions from 11 to 30
1. Define manufacturing and list major manufacturing processes that are employed to manufacture the engineering materials 2. Why it is important to provide venting system for the escape of gases from the mold cavity? 3. What type of problems/defects can occur if mold material provides too much restraint to a solidifying and cooling liquid? 4. Sketch a gating system that is employed to manufacture metallic castings? 5. What is a draft...
Cold water with properties as shown in Table 4 flows at rate of 4 kg/s is...
Cold water with properties as shown in Table 4 flows at rate of
4 kg/s is heated from 28 oC to 54 oC in a shell-and-tube heat
exchanger as shown in Figure 4.The cold water inters the tubes
through thin-walled tubes, each tube has diameter of 19 mm, and the
average velocity inside each tube is 0.355 m /s. The shell side,
one pass is used with hot water as the heating fluid 1.8 kg/s
entering the exchanger at 93...
Carbon dioxide (CO2) is used for the gas cooled reactor in shell and tube heat exchanger...
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1. A jet airplane in level flight has a mass of 8.65 ✕ 104 kg, and...
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PROBLEM #3 (30 points) A shell-and (N 20) is used to heat vegetable oil on the shell side using hot water on tethat side. is Lp- 3.0 m). Each copper tube has dimensions of 15.56-mm ID and 19.05-...
PROBLEM #3 (30 points) A shell-and (N 20) is used to heat vegetable oil on the shell side using hot water on tethat side. is Lp- 3.0 m). Each copper tube has dimensions of 15.56-mm ID and 19.05-mm OD and thermal conductivity of copper is 390 W/m-K. Water at a total flow rate of 3.33 kg/s enters the tubes of the heat exchanger at 360 K and leaves at 300 K The inlet and outlet temperatures of oil are 290...
Question 1 A turning operation is carried out on aluminum. Based on the specific energy values...
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Design the cooling system used to manufacture the leg of a table, shown in Fig.2. You...
Design the cooling system used to manufacture the leg of a table, shown in Fig.2. You will have to determine the required diameter D so that the leg can withstand 100 kg of axial loading. Once the diameter has been determined, you will need to determine the Revolutions per Minute (RPMs) of the fan needed to cool down the leg to 90-C in less than 2 minutes before it starts deforming after being 3D printed. Consider the leg of the...
(Metal-Casting Processes) (Groups) 10.47 A round casting is 0.2 m in diameter and 0.75 m in length. Another casting of the same metal is elliptical in cross-section, with a major-to-minor axis ratio of 2, and has the same length and cross-sectional area as the round casting. Both pieces are cast under the same conditions. What is the difference in the solidification times of the two castings? 10.48 A cylinder with a diameter of 50 mm and a height of 75...
. In casting experiments performed using a certain alloy and type of sand mold, it took 170 sec for a cube-shaped casting to solidify. The cube was 50 mm on a side. (a) Determine the value of the mold constant in Chvorinov's rule. (b) If the same alloy and mold type were used, find the total solidification time for a cylindrical casting in which the diameter 50 mm and length- 50 mm. Page 6 of 12 1.13. The housing for...
An uninflated balloon of mass 6.00 x 10 kg has a volume of 7.10 x 10-2 m3 when fully inflated with a mixture of helium and hydrogen gas. You tie a long, heavy cord to the balloon and allow the balloon to float above a table. The length of cord lifted off the table is 283 mm, and the linear mass density of the cord is 0.260 kg/m. The mass densities are 1.286 kg/m3 for air, 0.179 kg/m3 for helium...
i need answer of questions from 11 to 30
1. Define manufacturing and list major manufacturing processes that are employed to manufacture the engineering materials 2. Why it is important to provide venting system for the escape of gases from the mold cavity? 3. What type of problems/defects can occur if mold material provides too much restraint to a solidifying and cooling liquid? 4. Sketch a gating system that is employed to manufacture metallic castings? 5. What is a draft...
Cold water with properties as shown in Table 4 flows at rate of
4 kg/s is heated from 28 oC to 54 oC in a shell-and-tube heat
exchanger as shown in Figure 4.The cold water inters the tubes
through thin-walled tubes, each tube has diameter of 19 mm, and the
average velocity inside each tube is 0.355 m /s. The shell side,
one pass is used with hot water as the heating fluid 1.8 kg/s
entering the exchanger at 93...
Carbon dioxide (CO2) is used for the gas cooled reactor in shell and tube heat exchanger type steam generator (shown in Figure 2). 90000 kg/h entered to the exchanger under pressure and temperature of 4 bar and 500 OC respectively. The steam saturation temperature is 250 oC when the carbon dioxide leave the generator at 3300C. Presume the formed steam is saturated and dry. Using 25 mm inner diameter and 2 mm wall thickness, a copper tube is designed for...
PROBLEM #3 (30 points) A shell-and (N 20) is used to heat vegetable oil on the shell side using hot water on tethat side. is Lp- 3.0 m). Each copper tube has dimensions of 15.56-mm ID and 19.05-mm OD and thermal conductivity of copper is 390 W/m-K. Water at a total flow rate of 3.33 kg/s enters the tubes of the heat exchanger at 360 K and leaves at 300 K The inlet and outlet temperatures of oil are 290...
Question 1 A turning operation is carried out on aluminum. Based on the specific energy values in Table 20.2, determine material removal rate and cutting power in the operation under the following sets of cutting conditions: (a) Cutting speed 5.6 m/s, feed 0.25 mm/rev, and depth of cut 2.0 mm; and (b) cutting speed- 1.3 m/s, feed 0.75 mm/rev, and depth 4.0 mm. Question 2 Consider a turning operation performed on steel whose hardness 225 HB at a cutting speed...
Design the cooling system used to manufacture the leg of a table, shown in Fig.2. You will have to determine the required diameter D so that the leg can withstand 100 kg of axial loading. Once the diameter has been determined, you will need to determine the Revolutions per Minute (RPMs) of the fan needed to cool down the leg to 90-C in less than 2 minutes before it starts deforming after being 3D printed. Consider the leg of the...
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