Which of the following problems may happen due to hot working in extrusion? i. Oxidation of the billet ii. Hardening of the die and tools iii. Difficult to provide adequate lubrication
Q: What is the Pure Rolling Bodies in The Mechanical Systems and what its application?
A: Pure rolling refers to the rolling process in which no slide occurs. Pure rolling is a mix of…
Q: A 3in long and 1in diameter billet is extruded in a direct extrusion operation with an rx = 4.0. The…
A: Write the extrusion ratio. rx=4 Write the length and diameter of the billet. L=3 inD=1 in…
Q: Show that the true strain rate in extruding a round billet of radius r, as a function of distance x…
A:
Q: iagram
A: In Production process, hot extrusion is the process which is used to form special steel profiles…
Q: In the illustration of direct extrusion below, the extrusion force changes as the ram advances in…
A: Extrusion is the process used for creating objects with a fixed cross-sectional profile. The…
Q: Application of Indirect Extrusion more force is required than direct Extrusion O F
A: In direct extrusion process, force needed for the extrusion of billet is more than force needed for…
Q: If it is desired to reduce the power required for the rolling operation of part (b), what…
A: Given : Roller operation for a workpiece To find : To reduce the power required
Q: what effects does extrusion have on material properties
A: Extrusion is used for enhancing the value of modulus of elastic and it increases the tensile…
Q: Write a detailed note on "Hydrostatic Extrusion". Also draw diagrams to explain the process of…
A: "Hydrostatic Extrusion" is a form of "direct hot extrusion process". It is done at a temperature…
Q: 9) Which of the following type of stresses is/are primarily involved in the rolling operation?…
A: Explanation: In the rolling operation, the primary type of stresses acts due to compressive force of…
Q: Illustrate the advantages of direct extrusion on indirect extrusion
A: The direct extrusion process is the most well-known extrusion used in the expulsion business. It…
Q: 9) In hydrostatic extrusion, the billet is smaller than the chamber is used, Why? 10) Earing is a…
A: Question - 9: During extrusion process, the billet is inserted into the extrusion chamber where…
Q: Explain the function of a dummy block in the Direct Extrusion Process. (b) Explain the…
A: (a) The functions of the dummy block in direct extrusion process are: 1. It transfers the power of…
Q: A cylindrical working part is subjected to a forging landfall operation. The blank is 3.0 in. high…
A: volume of workpiece=π4×22×3=9.4247 in3
Q: With a neat diagram differentiate the direct and indirect extrusion process. Write any two…
A: Extrusion process is defined as the process in which material (billet) is passed though a set of…
Q: Clarify aspect of economically and technically grounds the preference of fine reductions rather than…
A: The fine reduction is much better than thick reduction due to following reasons : Technically : Due…
Q: 1) Which of the following problems may happen due to hot working in extrusion? i. Oxidation of the…
A: Hot working in extrusion is a process which done above the material's crystallization temperature so…
Q: What is the old and most recent technology of forging Process? How it evolved?
A: Given :- What is the old and most recent technology of forging Process.....
Q: Question: 2 a. Distinguish between roll bending and roll forming. b. What are some of the simple…
A: This above all process are used for manufacturing purpose in mechanical industry.
Q: A hot rolling operation is being carried out on 250 mm wide and 25mm thick low carbon steel…
A: Calculate the final thickness. hf=1-0.2ho =0.8×25 =20 mm Calculate the strain. Strain ε=lnhohf…
Q: What are the advantages of a counterblow or impact forging machine? What are some of the properties…
A: The counterblow hammers are used in the process of forging for better forging energy levels. The…
Q: What are the advantages and limitations of extrusion process?
A: To find : Advantages and limitations of extrusion process
Q: Clarify aspect of economically and technically grounds the preference of fine reductions rather than…
A: The fine reduction is much better than thick reduction due to following reasons : Technically : Due…
Q: Write down what you know about extrusion defects or rolling defects
A: Let us discuss about defects in rolling or extrusion processes.
Q: Both extrusion and bar drawing processes can be used to reduce the cross section. What can be the…
A: EXTRUSION BAR DRAWING A compressive load is applied at the entry end. A tensile load is applied at…
Q: 10)The maximum draft in a rolling operation is (R= radius of roll and p=coefficient of friction) is…
A: Rolling is a type of metal deformation that is commonly utilised in the metal forming process. It is…
Q: Describes the typical defects in flat rolling by providing the schematic illustration for each of…
A: In spite of the fact that stretching decreases the thickness of materials, there are a few…
Q: Write a Brief Application of Pure Rolling Bodies in The Mechanical Systems?
A: Pure rolling refers to the rolling process in which no slide is seen. Pure rolling is a motion…
Q: Show that the true strain rate in extruding a round billet of radius r, as a function of distance x…
A:
Q: 18.21 (SI units) **Do not use commas in your answer.** A cylindrical billet is 200 mm long and 100…
A:
Q: A billet 100 mm long and 30 mm in diameter is to be extruded in a direct extrusion operation with…
A: We are suppose to solve only 3 subparts. Please post other parts as a separate question.
Q: Which factors affect chevron cracking in extrusion? O Die angle; O Friction; O Extrusion ratio; O…
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Q: Products produced by precision forging require Select one: O a. no additional finishing operations…
A: To choose: The correct option. Given: The product is produced by the Precision forging. Concept…
Q: Which of the following is true for extrusion process? A: In indirect extrusion, direction of the ram…
A: Metal forming is a manufacturing process in which the raw material is deformed plastically to obtain…
Q: Which of the matches is correct? |- Open die forging- barreling is seen. II - Extrusion- high…
A: 1.Open die forging Open die forging is the process of deforming a piece metal between multiple dies…
Q: What is the working principles of Sheet Metal Rolling Machine?
A: This process is used to reduce the cross sectional area of the metal sheets. Thickness is reduced…
Q: How long does the extrusion process take?
A: The time required for the Extrusion process depends on
Q: A hot upset forging operation is performed in an open die. The initial size of the workpart is: Do =…
A:
Q: 1. What types of drawing process? 2. What are the Defects in cold drawn products? 3. What advantages…
A: As per guideline we can only do one question at time. But we can do the first three question
Q: 27(B). Distinguish the Open die and closed die forging process with its benefits and limitations.
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Q: Example 10.3 A cylindrical billet of 40 mm diameter and 100 mm length is reduced by indirect…
A:
Q: Which of the followings is not the property of hot extrusion die? Hardness at high temperature B…
A: Property which doesn't belongs to Hot extrusion Die.
Q: 2) Which of the following statement(s) is/are correct for extrusion process? i. The center of the…
A: Extrusion: It is a manufacturing process in which material is pushed through a die in order to…
Q: What is the difference between drawing and extrusion?
A: Extrusion It is a Process where a billet is forced through a die parts have constant cross-section…
Q: 1. What types of Forming processes? 2. What are the factors affecting of the extrusion process?
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Q: Describe the method of improving the forging die life and the advantages of improving the forging…
A: Dietary Restrictions Forging is a forging technique in which dies move near each other and…
Q: Explain the differences between Forward Extrusion and Reverse Extrusion processes
A: Forward Extrusion. The movement of ram and stock is in the same direction, so it is known as forward…
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- Choose the correct answer for the following: than hinh e to 4. In rolling operation, large diameter roll induces.. on the surface of the rolled part. a. compression stress. 5. the preheating treatment is not necessary if the carbon equivalent in the steel part is .. a. 0.3 b. tension stress. c. no residual stress b. 0.6 c. 0.8o 1:0Y 1 %VE .J • UU -> • من تعليقات الفئة Q1- What are the main advantages of using the bulk deformation processes? Q2- Explain when the engineering can use hot, cold and warm working during the manufacturing processes? 13- Classify the rolling processes according to the part geometry, and give your opinion about the best method can be used to produce a thick walled tubes? Q4- What are the main features of shape rolling? Q5- What are the main equipment that used in the forging processes? Q6- Explain the main advantages of using the flash in the close die? Q7- What are the types of the forging machine? "lää all موعد التسليم اليوم، . عملك + إضافة عمل2) Which of the following statement(s) is/are correct for extrusion process? i. The center of the billet moves faster than the periphery due to inhomogeneous deformation in the direct extrusion of a billet. ii. Center burst, or chevron cracking can occur at low extrusion ratios. i only ii only Both i and ii None of the above
- Which would you recommed based on your understanding and explain on it each of isa. hot forging and heat treating a workpiece orb. cold forging it and relying upon strain hardening for strengthening? Manufacturing Process5 Hot rolling of mild steel is carried out. a. Between recrystallization temperature b. Above recrystallization temperature c. Between 100⁰C to 150⁰C d. At recrystallization temperatureWhich of the following is true about open die forging process? O Forged pieces have accurate dimensions therefore there is usually no need for additional finishing operations such as heat treatment or machining. O Forged pieces have outstanding grain structure and the best combination of mechanical properties. O Forging is carried out at temperature above re-crystallization temperature Forged pieces are small in size since the forging process is incapable of doing large components such as turbine shafts.
- Answer by true (T) or false (F) for the folling sentences 1. tdi meane shot ha melina d salis Dy a. 3. apave n wadis ponas pr 4. Hot working leads to eliminating the porosity in the metal and increasing the strength and hardness. 5. Work hardening is a characteristic induced in the processing part because of the heat treatment.Choose the correct answer for the following: 1. In the bulk deformation process, there is a change in the thickness of the wokpiece. Thus, the ratio of the surface area to the volume is... c. small. a. equal. 2. In the metal forming process, if the temperature increases, the metal working becomes easier due to reducing in .. a. n and K. 3. The true tensile strain can be calculated from the following relation... B. very high. b. melting temperature. C. hardness a. e =In (1+e). b. e =In). C. e = In() e =In(; 4. In rolling operation, large diameter roll induces.. on the surface of the rolled part. b. tension stress. a. compression stress. c. no residual stress 5. the preheating treatment is not necessary if the carbon equivalent in the steel part is ... b. 0.6 a. 0.3 c. 0.86) Which of the following method(s) reduce the roll separating force in a rolling process? i. Reducing the roller diameter ii. Increasing friction between the rolls and the metal iii. Decreasing friction between the rolls and the metal i & iii only ii & iii only i only i,ii & i
- Hot rolling is used for simple parts only. Select one: True FalseQuestions: 1. Two thick slabs of 300mm each, the first one is used in cold rolling where u=0.08 while the second is used in cold rolling where u-0.5. The mill roll diameter in each case is the same as 600mm. Determine the max draft (reduction) in both cases. Discuss the wide difference in results. = 2. A tensile specimen of the metal of 100 mm is length stretched to a length 157 mm during the rolling process. If the metal has a flow curve with parameters: K = 850 MPa and strain hardening exponent n = 0.30. Determine the average flow stress that the metal has been subjected to during the deformation.38 - A blanking operation is to be performed on 8.0 mm thick soft cold rolled steel. The part is circular with diameter% D 90.0 mm. Determine the appropriate punch size for this operation (Punch diameter = Db - 2c) %3D Clearance allowance value for Metal Group 1100S and 5052S aluminum alloys, all tempers Ac 0.045 2024ST and 6061 ST aluminum 0.060 alloys; brass, all tempers; soft cold- rolled steel, soft stainless steel Cold-rolled steel, half hard; stainless steel, half-hard and full- hard 0.075 a) 98,20 b) 89.04 88,80 82.70 e) 74,76