EBK MANUFACTURING PROCESSES FOR ENGINEE
6th Edition
ISBN: 9780134425115
Author: Schmid
Publisher: YUZU
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Chapter 5, Problem 5.114D
To determine
The appropriate casting process.
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Q3)) Answer the following briefly:
A) What are the main advantages and disadvantages of Sand Casting and Die Casting?
B) What is the different between the sand casting open mold and sand casting closed
mold.
C) What is the mean of the Gating system and what its parts, explain with drawing?
D) What is the benift of Riser in sand casting?
E) How can evacuated the hot gases formed by reactions of the molten metal in sand
casting?
F) How can evacuated the hot gases formed by reactions of the molten metal in die
casting?
G) What is the cooling curve, expain with drawing the curve?
H) Explain briefly the mechanism of hot-chamber machine in die casting process?
I) Explain briefly the mechanism of Cold-chamber machine in die casting process?
O
Question 2:
Calculate the required percentage form the following scrap, which would satisfy the
following composition for the production of casting billet-MS 70 (70% Cu- 30% Zn)
%Cu
-90
58
Charge
Red brass scrap
MS 58
%Zn
10
42
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.
Chapter 5 Solutions
EBK MANUFACTURING PROCESSES FOR ENGINEE
Ch. 5 - Prob. 5.1QCh. 5 - Prob. 5.2QCh. 5 - Prob. 5.3QCh. 5 - Prob. 5.4QCh. 5 - Prob. 5.5QCh. 5 - Prob. 5.6QCh. 5 - Prob. 5.7QCh. 5 - Prob. 5.8QCh. 5 - Prob. 5.9QCh. 5 - Prob. 5.10Q
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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
- Write down the Experiment “Introduction to Casting Processes and study various stages of casting processes. Give examples of casting productsarrow_forward(b) In casting experiments performed using a certain alloy and type of sand mould, for which n can be approximately taken as 2, it took 155 sec for a cube-shaped casting to solidify. The cube was 50 mm per side. (i) Determine the value of the mould constant in Chvorinov's rule. (ii) When the same alloy and mould type are used to make a cylindrical casting of diameter 30 mm, what is the maximum length of the cylinder if the maximum solidification time is limited to 1 minute?arrow_forward2. What are the general defects found in casting processes? Name and briefly describe two.arrow_forward
- (1) In sand casting, the volumetric size of the pattern is: (a) bigger than, (b) the same as, or (c) smaller than the cast part (2) Machining processes include which of the following (two correct answers): (a) casting, (b) drilling, (c) extrusion, (d) forging, (e) shaping, (f), and painting? (3) Aluminum sections used for making metal doors and windows are made by which process: (a) Rolling, (b) welding, (c) extrusion, (d) turning. (4) The average flow stress is the flow stress multiplied by which of the following factors: (a) n, (b) (1-n), (c) 1/n, or (d) 1/(1+n), where n is the strain hardening exponent? (5) The strength of a brazed joint is typically (a) equal to, (b) stronger than, or (c) weaker than soldered joint? (6) Thread cutting operation is normally performed on which one of the following machine tools: (a) drill press, (b) lathe, (c) milling machine, (d) planer, or (e shaper?arrow_forward(9,00 Puanlar) 36 - 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 = 25 cm, width = 15 cm, and thickness = 2,5 cm. If the total solidification time of the casting itself is known to be 4,5 min, determine the diameter of the riser so that it will take 2596 longer for the riser to solidify. Riser volume: V-(nD³/6 (D=diameter) Riser area: A-TD2 Casting volume: V-L-W-t (L-Length, W=width, t=thickness)arrow_forwardState the steps that must be taken to correct the following casting defects: 1. Formation of discontinuity in the casting.- 2. Cast surface consisting of a mixture of sand and metal. 3. Casting with balloon-shaped gas cavity near the surface. 4. Formation of hot tearing in expandable and permanent mold casungs. 5. Metal splatters during pouring and solid globules form and become entrapped in casting.arrow_forward
- Don't waste my question please, thank you god bless. I will vote it up if you give the solution.arrow_forwardEX.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.arrow_forward6) Horizontal centrifugal casting is used to make aluminum rings with length L= 5 cm, outside diameter do = 65 cm, and inside diameter d; = 60 cm. The density of aluminum is p = 2.7 cm3 cm³ a) Determine the rotational speed that will provide a G-factor = 60. b) Determine the centrifugal force when the cast is operating at the rotational speed.arrow_forward
- Describe the die casting process in detail. Use neat sketches for clarity. Differentiate clearly between hot-chamber die casting and cold-chamber die casting processes. What is the difference between true centrifugal and semi-centrifugal casting? Describe the centrifugal casting process in detail. Use neat sketches to elaborate your description.arrow_forwardYou were required to make 1000 simple small parts in aluminum. Would using a permanent mold be less expensive per part then preparing 1000 sand molds explain?arrow_forwardq1 What is the difference between casting and forging process? Explain the three stages in casting process and its applicationsarrow_forward
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