Using the rolling process significant improvement is accomplished in rolled parts in their various mechanical properties such as toughness, ductility, strength and shock resistance. O F O T
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: 8) Which one of the operation is not a part different stages of drop forging process?
A: Explanation Nibbling is the method of punching overlapping hole in the sheet metal operation. While…
Q: Major metal forming processes include ______ a rolling to reduce the thickness for making…
A: Metal forming is a manufacturing process used to change the shape of the metal work piece. Metal…
Q: Products possess (shows) better reproducibility in metal forming at forming temperature condition.…
A: Product posses better reproducibility in metal forming at cold forming temperature conditions. Cold…
Q: omproper heating of the metal at high temperature in Forging or for a long time causing Brunt and…
A: Heating of the metal at high temperature in forging or for a long time causing Brunt and overheated…
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: Why the cupping test may not predict well the formability of sheet metals in actual forming…
A: option b is the correct answer
Q: Identify the type of forming process in which the material is required to pass repeatedly through…
A: Option c is correct.
Q: Why are hot-rolled products generally limited to standard shapes and sizes?
A: Hot rolled products have a scaly surface with slightly rounded edges and corners. It requires a high…
Q: Extrusion and drawing have numerous application in manufacturing continuous as well as discrete…
A: Extrusion: It is a metal forming process in which a material under high pressure is forced through…
Q: A blanking operation is to be performed on 3.0 mm thick cold-rolled steel (half hard). The part is…
A:
Q: How to study rolling process and its parameters?
A: In metalworking, rolling is a metal forming process in which metal stock is passed through one or…
Q: Strain hardening is more visible in _______ process. a. Hot rolling b. Hot drawing c. Tube forming…
A: Option d is correct (Cold rolling )
Q: Conservation of matter is preserved in rolling process. Explain this statement.
A:
Q: Derive a heat balance equation for a twin screw extrusion process
A: Write the expression for thermal penetration thickness. δt=4αt Write the circumferential width of…
Q: ndrical workpiece is forged in an open die. The workpiece The height after forging is 15 mm. The…
A:
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: ock 3.2 mm thick. The outside diameter of the washer is 25.0 mm, and the inside diameter is 12.0 m.…
A: from table Ac=0.06,so c=0.06(3.2)c=0.192mm
Q: 3) Which of the below statements is/are correct regarding deep drawing process? i. If the clearance…
A: In deep drawing process,the clearance is set to be 10% more than the sheet thickness. When the…
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: What is isothermal forming?
A: Isothermal Forming :-
Q: WHAT ARE THE 5 USES/APPLICATIONS OF ROLLING CONES AND ROLLING CYLINDERS?
A: The answer is given below:
Q: Explain steps of rolling process in forming process?
A: Steps in rolling process
Q: 1) Which of the following statement(s) is/are correct? i. Cold-rolling is used to produce sheet and…
A: Explanation1)Due to low temperature in cold-rolling operation no scale formation takes place. so it…
Q: 18.21 (SI units) **Do not use commas in your answer.** A cylindrical billet is 200 mm long and 100…
A:
Q: What is rolling process and its parameters? Diagrams?
A: Rolling is a process where metal work pieces are plastically deformed by passing them between…
Q: A 200 mm wide and 42.0 mm thick plate made of low carbon steel is to be reduced in one pass in a…
A: Given: The width of the plate, b1 = 200 mm The thickness of plate initially, t1 = 42 mm The increase…
Q: (USCS units) A part is hot forged in an impression die. The projected area of the part, including…
A: Given data as per the question The projected area of the part, =17.3 in2 . After trimming, the part…
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: 5) Chapter 18: (USCS units) Aluminium rod stick with a starting diameter = 0.50 in %3D is drawn…
A:
Q: What are the advantages of forging process?
A: Advantages of forging 1. Parts manufactured are stronger. 2. Forging offers high ductility. 3.…
Q: How long does the extrusion process take?
A: The time required for the Extrusion process depends on
Q: The hot rolling process is being widely used in the production of ,., structural sections plates…
A: Hot rolling: It is a type of manufacturing process in which metal is heated above its…
Q: A mild steel plate has to be rolled in one pass such that the final plate thickness is 2/3rd of the…
A: Given data: Final plate thickness = (2/3) of the initial plate thickness Entrance speed = 10 m/min…
Q: In extruded products piping defect is usually associated with indirect extrusion. От F
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: A hot/cold rolling setup is shown right. The operation first hot rolls a 3/8” thick plate, 12” wide…
A: Given: The thickness of plate in first roll, to = 3/8 in = 9.52 mm The width of plate, b = 12 in The…
Q: When is the shear formula?
A: The simplest formula is the ratio of Shear Force and the Area on which it is acting. That is, S =…
Q: Bulk deformation processes, when performed as hot working operations, they can achieve significant…
A: bulk deformation process :- here the workpice is undergoes large deformation process where it is…
Q: 1. What types of Forming processes? 2. What are the factors affecting of the extrusion process?
A:
Q: Q1- What are the main advantages of using the bulk deformation processes? Q2- Explain when the…
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Q: 3) Collapsible tubes are made by Drawing Spinning Rolling Impact extrusion
A:
Q: Question 1 Choose corect statements related to the cold rolling process O Require greater loads O…
A: Cold rolling process requires greater loads due to strain hardening or work hardening of material by…
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- o 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 عملA hot/cold rolling setup is shown right. The operation first hot rolls a 3/8” thick plate, 12” wide (w), of6061 Aluminum, to an intermediate thickness, then finally through cold rolling, down to 1/4” thick plate.The friction factor μ is assumed to be constant at 0.15 for the hot roll, 0.12 for the cold rolling stage. Thefirst set of rolls operate at 50 RPM. Also ignore any width increase during rolling. CW=13% or .13 What is the plate thickness (mm) prior to the last rolls, t1, if the last set of rollers perform cold work reduction listed below at .13 or 13% Note that 9.52 mm is equal to 3/8 of an inch.Questions: 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.
- Hot rolling is used for simple parts only. Select one: True FalseHow to study rolling process and its parameters?View Help RCM -EEE A Paragraph ¶ AaBbCcDc AaBbCcDc AaBbC AaBbcct AaB AaBbCct AaBbCCDA AaB 1 Normal 1 No Spac... Heading 1 Heading 2 Title Subtitle Subtle Em.... Emp Styles A cup-drawing operation is performed in which the cup's inside diameter = 80 mm and its height = 50 mm. Stock thickness = 3.0 mm, and blank diameter = 150 mm. Punch and die radii = 4 mm. Tensile strength = 400 MPa and yield strength = 180 MPa for this metal. Determine (a) drawing ratio (b) reduction, (c) drawing force, and (d) blankholder force? (Ctrl) I=
- A round disk of 200-mm diameter is blanked from a strip of 3.0-mm, half-hard cold-rolled steel whose shear strength = 300 MPa, and clearance allowance = 0.075. Determine a. the appropriate punch and die diameters, and b. blanking force Equation to use Clearance allowance value for three sheet metal groups. Compiled from [3]. Metal Group Ac 0.045 1100S and 5052S aluminum alloys, all tempers. 2024ST and 6061ST aluminum alloys; brass, all tempers; soft cold-rolled steel, soft stainless steel. 0.060 Cold-rolled steel, half hard; stainless steel, half-hard and full-hard. 0.075Hot rolling is carried at temperature lower than melting temperature of materials YER Select one O True O FalseManufacturer process A compound die will be used to blank and punch a large rectangle (90x150mm blank dimensions) out of 6061ST aluminum alloy sheet stock 3.5 mm thick. The diameter of inside hole is 25 mm. The aluminum sheet metal has a tensile strength = 310 MPa. Determine the minimum tonnage press (force) to perform the blanking and punching operation (1) assume that blanking and punching occur simultaneously and (2) assume that punching occurs first, then blanking. Take: Ac=0.06
- Q/ A plate of 270 mm wide and 25 mm thick from carbon steel. A two-high rolling mill is used to reduce the thickness to 20 mm. Roll radius = 600 mm, and roll speed = 8 rpm. Strength coefficient = 500 MPa, and strain hardening exponent = 0.25. Determine (a) roll force, (b) roll torque, and (c) power required to perform the operation.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) 74,76Why are hot-rolled products generally limited to standardshapes and sizes?