EBK MANUFACTURING PROCESSES FOR ENGINEE
6th Edition
ISBN: 9780134425115
Author: Schmid
Publisher: YUZU
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Chapter 5, Problem 5.49Q
To determine
Whether the letter protruded from the surface or recess into the surface if it was incorporated on sand casting and if the part were to be made by investment casting.
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For the casting of the part, whose perspective pictures are given below, take into account the surface of the section, the model design, if necessary, the core design, all the molding stages and finally the mold in the most suitable form for casting, and name all the mold elements by showing them on the figure (Note: The hole shown in the figure, full hole.)
For the casting of the part whose perspective pictures are given below, take into account the surface of the section, the model design, if necessary, the core design, all the molding stages and finally, draw the mold in the most suitable form for casting and name all the mold elements by showing them on the figure (Note: The hole shown in the figure is a full hole. .)
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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
Ch. 5 - Prob. 5.11QCh. 5 - Prob. 5.12QCh. 5 - Prob. 5.13QCh. 5 - Prob. 5.14QCh. 5 - Prob. 5.15QCh. 5 - Prob. 5.16QCh. 5 - Prob. 5.17QCh. 5 - Prob. 5.18QCh. 5 - Prob. 5.19QCh. 5 - Prob. 5.20QCh. 5 - Prob. 5.21QCh. 5 - Prob. 5.22QCh. 5 - Prob. 5.23QCh. 5 - Prob. 5.24QCh. 5 - Prob. 5.25QCh. 5 - Prob. 5.26QCh. 5 - Prob. 5.27QCh. 5 - Prob. 5.28QCh. 5 - Prob. 5.29QCh. 5 - Prob. 5.30QCh. 5 - Prob. 5.31QCh. 5 - Prob. 5.32QCh. 5 - Prob. 5.33QCh. 5 - Prob. 5.34QCh. 5 - Prob. 5.35QCh. 5 - Prob. 5.36QCh. 5 - Prob. 5.37QCh. 5 - Prob. 5.38QCh. 5 - Prob. 5.39QCh. 5 - Prob. 5.40QCh. 5 - Prob. 5.41QCh. 5 - Prob. 5.42QCh. 5 - Prob. 5.43QCh. 5 - Prob. 5.44QCh. 5 - Prob. 5.45QCh. 5 - Prob. 5.46QCh. 5 - Prob. 5.47QCh. 5 - Prob. 5.48QCh. 5 - Prob. 5.49QCh. 5 - Prob. 5.50QCh. 5 - Prob. 5.51QCh. 5 - Prob. 5.52QCh. 5 - Prob. 5.53QCh. 5 - Prob. 5.54QCh. 5 - Prob. 5.55QCh. 5 - Prob. 5.56QCh. 5 - Prob. 5.57QCh. 5 - Prob. 5.58QCh. 5 - Prob. 5.59QCh. 5 - Prob. 5.60QCh. 5 - Prob. 5.61PCh. 5 - Prob. 5.62PCh. 5 - Prob. 5.63PCh. 5 - Prob. 5.64PCh. 5 - Prob. 5.65PCh. 5 - Prob. 5.66PCh. 5 - Prob. 5.67PCh. 5 - Prob. 5.68PCh. 5 - Prob. 5.69PCh. 5 - Prob. 5.70PCh. 5 - Prob. 5.71PCh. 5 - Prob. 5.72PCh. 5 - Prob. 5.73PCh. 5 - Prob. 5.74PCh. 5 - Prob. 5.75PCh. 5 - Prob. 5.76PCh. 5 - Prob. 5.77PCh. 5 - Prob. 5.78PCh. 5 - Prob. 5.79PCh. 5 - Prob. 5.80PCh. 5 - Prob. 5.81PCh. 5 - Prob. 5.82PCh. 5 - Prob. 5.83PCh. 5 - Prob. 5.84PCh. 5 - Prob. 5.85PCh. 5 - Prob. 5.86PCh. 5 - Prob. 5.87PCh. 5 - Prob. 5.88PCh. 5 - Prob. 5.89PCh. 5 - Prob. 5.90PCh. 5 - Prob. 5.91PCh. 5 - Prob. 5.92PCh. 5 - Prob. 5.93DCh. 5 - Prob. 5.94DCh. 5 - Prob. 5.95DCh. 5 - Prob. 5.96DCh. 5 - Prob. 5.97DCh. 5 - Prob. 5.98DCh. 5 - Prob. 5.99DCh. 5 - Prob. 5.100DCh. 5 - Prob. 5.101DCh. 5 - Prob. 5.102DCh. 5 - Prob. 5.103DCh. 5 - Prob. 5.104DCh. 5 - Prob. 5.105DCh. 5 - Prob. 5.106DCh. 5 - Prob. 5.107DCh. 5 - Prob. 5.108DCh. 5 - Prob. 5.109DCh. 5 - Prob. 5.110DCh. 5 - Prob. 5.111DCh. 5 - Prob. 5.112DCh. 5 - Prob. 5.113DCh. 5 - Prob. 5.114DCh. 5 - Prob. 5.115D
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- 2. State one casting defect associated with excess moisture content in the mould. 3. State two reasons why moisture is required in moulding sand 4. Knust steel foundry shop is to formulate a moulding sand containing sand, clay and water only, in the sand to clay fraction of and respectively. If the sand obtained is dry but the clay is moist with moisture content of 15%, how much water should be added to formulate 850g moulding sand?arrow_forwardQUESTION 14 Pieces thicker than 5.45mm are considered sheet. O True O False QUESTION 15 In sand casting, natural sands are less economical than synthetic sands. O True O False QUESTION 16 Typical sheet-metal thicknesses are between 0.15 mm and 7 mm. O True Falsearrow_forwardFor casting the part, whose perspective pictures are given below, into sand mold,model design, core design if necessary, all molding stages andFinally, draw the mold in the most suitable form for casting and shape all the mold elements.Name it by showing on it (Note: The hole shown in the figure is a full hole.) !!! Please draw the desired shapes !!arrow_forward
- 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 filearrow_forward6. 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) falsearrow_forward25. 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.arrow_forward
- 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.arrow_forward16- 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 = 30 cm, width = 10 cm, and thickness = 3 cm. If the total solidification time of the casting itself is known to be 2,5 min, determine the diameter of the riser so that it will take 30% longer for the riser to solidify. (n=2) a) O 8,41 cm b) O 11,46 cm C) 6,62 cm d) O 7,34 cm Boş bırakarrow_forwardQUESTIONS 1- Describe with net sketch: a. Pattern b. Riser c. Runners d. Core 2- Compare between open mold and closed mold. 3-Explain the main Procedures of Sand Casting. 4 - What are the important properties which are essential in good molding sand? Explain in details. 5- Mention advantages and disadvantages of casting. 6- Describe types of sand mold. 7- What are the common binders of sand mold and cores? 8- Describe Desirable Mold Properties. 9- Explain two types of patterns and two pattern allowances 10- Describe with sketches shell process casting (i) Composition of sand mixture (ii) Steps in molding (iii) Advantages (iv) Limitations and (v) Applications 11- Explain with Sketch the construction and operation of a hot chamber die casting machine. 12- Compare between hot chamber die casting and hot chamber die casting. 13- What is meant of investment casting? What are the main materials used for making the investment pattern. 14- Describe various kinds of patterns in use. 15- Why…arrow_forward
- Q1.Write down your answer briefly. i) Why is the permeability of shell mold higher as compared to sand mold? ii)What type of die casting process is mostly preferable for higher production rate? Justify your answer. iii) Bauschinger effect can be reduced by the stress aging process. Justify your answer. iv) Why is the sand for foundry practice called green sand? Can it be used for the core making process? v) What is moldability? How do you determine moldability of molding sand? vi) Which casting process is usually preferred for producing long tubular objects? Is it possible to manufacture a solid and parallelepiped object having different dimensions in a centrifugal casting process? Justify your answer. vii) What is directional solidification? How does a riser promote directional solidification?arrow_forwardflו. 3D) امتحان شهري.pdf 1. A square section riser be designed for a sand-casting mold. The casting itself is a quarter-cylinder with a diameter of 12cm and a length 20cm. The total solidification time for this casting = 0.9 min. The square for the riser will have a height-to-width ratio of 2.0. Determine the dimensions of the riser so that it is total solidification time = 1.2 2. A mold sprue is 180 mm long, the cross-sectional area at its base is 2.4 cm?. The sprue feeds a horizontal runner leading into a mold cavity whose volume is 1600 cm?. Determine, volume rate of flow and time to fill the mold.arrow_forward* نقطة واحدة Investment casting is also known by :which one of the following names full-mold process O fast-payback molding O lost-pattern process O lost-foam process lost-wax processarrow_forward
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