A vertical gating system has a sprue height of 250 mm, one ingate located 150 mm below the mould top and the second ingate 200 mm below mould top. What should be the ratio of cross-sections of the two ingates to ensure equal flow rate from both.

A vertical gating system has a sprue height of 250 mm, one ingate located 150 mm below the mould top and the second ingate 200 mm below mould top. What should be the ratio of cross-sections of the two ingates to ensure equal flow rate from both.

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

See similar textbooks

Related questions

Q: 2. 3. State two reasons why moisture is required in moulding sand

A: Q.2 The blow holes is the casting defect due to excessive moisture in the mould . In blow holes the…

Q: i need the answer quickly

Q: The height of the down sprue is 175 mm and its CS are at the base is 200 mm² The CS area of the…

A: Given:Height of the down sprue, h=175 mmCross section area at the base, A=200 mm2CS area of the…

Q: Moulds for blow moulding can be made using aluminium whereas moulds for injection moulding are…

A: Blow molding may be a molding process utilized within the fabricating industry to form hollow…

Q: What is the operation of parting?

A: Parting operation

Q: In sand moulding and casting process, which of the following is the purpose of a chill? a. To…

A: In the Sand casting chills and padding are used to create directional solidification. In the casting…

Q: A sprue is 250 mm long. The velocity of the molten metal at the top of the sprue is 0.15 m/s. The…

A: The amount of time it takes for the die casting mould to be filled with melt. The requirement that…

Q: g) .................. is used in the production of very indented-protruding parts by forging in…

A: g) .................. is used in the production of very indented-protruding parts by forging in…

Q: Pure aluminium is poured into a sand mold. The metal level in the pouring basin is 203.2 mm above…

A: Given, Height of the pouring basin , h = 203.2 mm Diameter of the runner , d =7.62 mm Density of…

Q: a) What is the velocity of the molten metal at the bottom of the sprue in [mm/s]? b) What is the…

Q: Explain the disadvantages of Tube Drawing process in which mandrel is not used.

A: Given Data⇒Tube drawing ProcessNo use of mandrelProblem definition⇒Problem says Explain the…

Q: The freezing ratio of the mould is

A: Given ,cast steel slab=30×20×5 cmModulus,Mc=VAMc=VA=30×20×52×20×20+2×30×5+2×20×5=3017Mc=1.76

Q: explain how we can made cranckshaft from die casting in steps (with pictures)

A: Crankshaft is a very important part of the engine. The crankshaft in the engine is responsible for…

Q: The flow rate of liquid metal into the downsprue of a mold = 1 liter/sec. The cross-sectional area…

A: GIVEN DATA - Q=1 lit/sec h=175mm A1=800mm2 WE HAVE TO CALCULATE BOTTOM AREA OF SPRUE

Q: A slab of size 300 x 300 x 50 mm is reguire to be cast from a molten steel using a top riser of 170…

A: The freezing ratio is calculated by dividing the total surface area of the casting by the total…

Q: An extrusion operation is used to produce a parison whose mean diameter = 27 mm. The inside and…

A: Given data: Dp=27 mmd0=22 mmdi=18 mmtm=0.4 mm Need to determine the maximum possible diameter of the…

Q: A mould having dimensions 100 mm x 90 mm x 20 mm is filled with molten metal through a gate with…

A: Given:Mould dimensions =100 mm x 90 mm x 20 mm

Q: In the direct extrusion method, the heated metal billet is placed into th die chamber and the…

A: Ans: In the direct extrusion method, the heated billet metal is placed into the die chamber, and…

Q: The height of the down sprue is 175 mm and its CS are at the base is 200 mm2. The CS area of the…

A: Given:Height of down sprue, H=175 mmarea of the base=200 mm2g=10 m/s2

Q: What is the difference between casting and forging process? Explain the three stages in casting…

A: Diff between casting and forging process

Q: A sprue in a sand mould has a top diameter of 20 mm and height of 200 mm. The velocity of the molten…

A: Draw a diagram showing the sprue. Here, 1, 2 and 3 indicate the points as shown in the figure, h2…

Q: q1 What is the difference between casting and forging process? Explain the three stages in casting…

A: In the casting process, metal is heated until molten. Then it is poured into a mold or vessel to…

Q: mould has downsprue whose length is 20 cm and the cross sectional area at the base of the downsprue…

A: Given:Length of sprue, L=20 cm or 0.2 mArea of down sprue, A=1 cm2 or 10-4 m2Volume of mould, V=1000…

Q: Suggest the optimum parameter setting or methods to obtain high quality moulded parts.

Q: The process of removing flash from the forged product is called In blanking operation, if the final…

A: In manufacturing, Trimming process is used as a finishing operation for forged parts to remove burr…

Q: -_are small openings made into the mould through which liquid metal enters the cavity.

A: The mould cavity is given to find the entrance point of cavity

Q: A mould has downsprue whose length is 20 cm and the cross sectional area at the base of the…

A: Length of the sprue, h=20 cm or 0.2 mCross sectional area at the base of the downsprue, A=1 cm² or…

Q: (b) In casting experiments performed using a certain alloy and type of sand mould, for which n can…

Q: Explain the open and closed mold forging processes with figures. Draw the force-stroke diagram in…

A: Open mold forging Better fatigue resistance and improved microstructure Continuous grain flow and…

Q: What is the advantage in casting turbine blades that have either highly aligned grain boundaries or…

A: Turbine blades are manufactured by casting by containing superalloys in them. These superalloys have…

Q: The problem of lubrication in the extrusion gets compounded at higher operating temperatures. O T O…

A: At higher temperature the problem of lubrication gets compounded, we generally use molten glass at…

Q: Highlighting the positive pattern making allowances, explain in detail with a neat sketch and…

A: In positive allowance the pattern is made slightly higher than the actual size. This is done to…

Q: A component is sand casted in pure aluminum. The level of the metal inside a pouring basin is 215 mm…

A: The gating system in casting is a metal pouring mechanism that directs molten metal into the mould…

Q: The flow rate of liquid metal into the downsprue of a mold = 1 liter/sec. The cross-sectional area…

Q: A component is sand casted in pure aluminum. The level of the metal inside a pouring basin is 215 mm…

Q: Q10- Can we consider plaster mold casting as precision casting? Why Q11- What is called the initial…

A: Plaster mold Plaster mold casting is a method by which molds are made from enhanced Paris plaster.…

Q: For a sand casting a steel rectangular plate with dimensions 80mm x 120mm x 20mm. Calculate…

A: GIVEN: Shrinkage of material 0.1%

Q: A mould has downsprue whose length is 20 cm and the cross sectional area at the base of the…

A: Given:Length of the downsprue, L=20 cm or 0.2 mCross-sectional area at the base, A=1 cm2 or 10-4…

Q: A typical plastic shopping bag made by blown film has a lateral dimension (width) of 550 mm. Assume…

A: Given:- Width=550mm Expanded from 1.5 to 2.5 times To find:- Die diameter size

Q: A riser in the shape of a sphere is to be designed for a sand casting mould at Simon Castings. The…

Q: h, is placed on the top of the mold cavity of a closed type sand mould as shown in the figure. of…

Q: 3) What are the means of elastic and plastic deformations? List the passageway (gating system)…

Q: Mention all the features of centrifugal casting.

A: Centrifugal casting- it is casting process in which product are form by applying centrifugal force…

Q: A bearing of simple geometry is to be pressed out of bronze powders, using a compacting pressure of…

Q: For sand-casting a steel rectangular plate with dimensions 80mm×120mm×20mm, a cylindrical riser has…

A: Given data; The length of the casting is L = 80 mm. The width of the casting is B = 120 mm. The…

Concept explainers

Stress transformation

The term stress indicates the measure of internal forces that develop due to an external force's application on an object. When a specific external force is applied to an object, internal stress generates in the material. The value of stress can obtain by taking the ratio of the externally applied force and cross-sectional area of the object. There are different types of stress depending on the type of external force.

Question

Q no:10

9. What are the different ways of ensuring that only clean metal enters the
casting cavity?
I
10. A vertical gating system has a sprue height of 250 mm, one ingate located
150 mm below the mould top and the second ingate 200 mm below mould top.
What should be the ratio of cross-sections of the two ingates to ensure equal
flow rate from both.
11. What are the different ways of controlling the ingate velocity?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

Which of the following is not counted as mould characteristics? O a. Possession of refractoriness O b. Resist metal penetration in moulds O c. Possession of strength O d. Resist corrosion ENG a US 12
In sand moulding and casting process, which of the following is the purpose of a chill? a. To increase the rate of heat extraction from the casting b. To reduce the possibility of blow holes O c. To increase the surface finishing of the casting d. To decrease the solidification time
Question: 1. The Blank For The Spool Shown In Fig. Below Is To Be Sand Cast Out Of A-319, An... 1. The blank for the spool shown in Fig. below is to be sand cast out of A-319, an aluminum casting alloy. Make a sketch of the wooden pattern for this part, and include all necessary allowances for shrinkage and machining. 12.5 mm 12.0 mm 75.0 mm 100.0 mm -
The height of the down sprue is 175 mm and its CS are at the base is 200 mm² The CS area of the horizontal runner is also 200 mm² Assuming no losses, indicate the correct choice for the time (second) required to fill a mould cavity of volume 106 mm³ (Use g=10 m/s^ 2 )
Question 2 Blitz Precision Engineering Ltd manufactures moulds for injection moulding machines. The moulds are made from hardened tool steel due to its high wear and abrasion resistant properties. When hardened, it will offer a hardness in the range 55-62 HRC, however it is machinable in the annealed condition. The first step to machine one of the components of a particular mould involves a milling operation. Specifically, this consists of a face milling operation which is performed on the top surface of a rectangular tool steel workpiece which is 315 mm long, 70 mm wide and 30 mm thick. To mill this component, the machinist has decided to: use a cemented carbide tool that has 5 teeth and a diameter of 80 mm. set up the machine and workpiece so that the cutter follows a path that is centred over the workpiece with a roughing depth of cut value of 4 mm. In addition, to select the relevant processing parameters, the machinist has to refer to the relevant data provided in a handbook by…
6. In reverse drawing, the shape change is significant enough (e.g., drawing ratio greater than 2.0) that it must be carried out in two drawing steps, probably with an annealing operation between the steps. In redrawing drawing, two draws are accomplished on the part, one in one direction, the second in the opposite direction (a) true or (b) false 7. In semicentrifugal casting, a tubular mold is used and a tubular part is produced. In true centrifugal casting, the shape is solid; an example is a railway wheel. The mold is rotated so that centrifugal force is used to distribute the molten metal to the exterior of the mold so that the density of the final metal is greater at the outer sections (a) true or (b) false
Converging passage is used for feeding the liquid molten metal into the mould to (a) increase the rate of feeding (b) quickly break off the protruding portion of the casting (c) decrease wastage of cast metal (d) avoid aspiration of air
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…
1. Write the requirements of good pattern.2. What is core venting? 3. Which process is called lost waxing method? Why? answer all the 3 parts
The primary function of a riser is to (a) feed molten metal to casting as it solidifies (b) prevent atmospheric air from contaminating the metal in the mould (c) allow gases to easily escape from mould cavity D)allow molten metal to rise above the mould cavity
What is the typical industrial reduction ratio for an ingot while being processed into a forging? Group of answer choices 7:2 3:1 2:1 10:1 How are oxides removed from the melt pool during a casting process? Group of answer choices Machined after solidification Collected in slag Allowed to diffuse out into the air Vacuum degassing
2. Define mould.