Specify How to improve the structure of steel after hot rolling?
Q: When deforming metal at room temperature, what kind of forging will you prefer?
A: Cold forging Cold forging is preferred for deforming objects near room temperature.
Q: An austenitic stainless steel plate with a width of 100 mm, a length of 150 mm and a thickness of 50…
A: Given: The width of the plate, w = 100 mm The length of the plate, L = 150 mm The height of the…
Q: c) A flat rolling operation is being carried out where the roll radius is 200 mm and the roll…
A: A rolling force is applied by rollers to the workpiece so as to reduce its thickness Maximum…
Q: Explain the connection between notch strengthening and material ductility; which is more likely to…
A: Notch strengthing occurs in the case of ductile material .stress concentration increases by creating…
Q: Explain the difference between M-series and T-series high-speed steels.
A: Difference between the M-series high speed steels and T-Series high speed steels M-series- 1. The…
Q: To what thickness can a solid cylinder of 6061-0 aluminium, that is 20 mm in diameter and 50 mm…
A:
Q: Estimate power for an healed low carbon steel strip 200 mm wide and 10 mm thick, rolled to a…
A: Rolling is a metal forming process in which a material is plastically deformed by passing it between…
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: Why may ultimate strength be greater than rupture strength?
A: The given problem is for ductile materials because for brittle materials there is no plastic…
Q: Using the rolling process significant improvement is accomplished in rolled parts in their various…
A: There are two types of rolling processes one is hot rolling and other one is cold rolling but the…
Q: To what thickness can a solid cylinder of C38500 bronze, that is 30 me 60 mm high, be forged in a…
A: Given:Diameter, d=30 mmradius, r1=15 mmhieght, h=60 mmforging force, F=450 kNTaking flow stress for…
Q: What is the general equation for bending?
A: The general equation of bending is basically used in all the bending cases, i.e., for symmetrical…
Q: Name the four basic bulk deformation processes.
A: Given:
Q: Question-2 If it takes 12.0 min to 50% recrystallize a piece of high-purity copper sheet at 140°C…
A: We have to find time for recrystallize
Q: A. What is the amount of cyclic acceptable for 1045 steel and 2014 T6 Aluminum alloy material if a…
A: given; A. What is the amount of cyclic acceptable for 1045 steel and 2014 T6 Aluminum alloy material…
Q: What is sheet metal working process and its parameters? Diagrams?
A: Definition:- The process in which force is applied to a piece of sheet metal so as to modify its…
Q: A spool of copper wire has a starting diameter of 2.5 mm. It is drawn through a die with an opening…
A:
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: Which metal often does not have a well-defined yield point and which procedure is suitable to yield…
A: Answer : Yield point : It is defined as that point after which material does not regain its original…
Q: Which would you recommed based on your understanding and explain on it each of is a. hot forging and…
A: Hot forging Hot forging is the forming process which take place above recrystallization temperature…
Q: What is isothermal forming?
A: Isothermal Forming :-
Q: Why the metal acts more plasticity and high ductility with increase the temperature during forming?
A: Let us discuss about plasticity and ductility of metals.
Q: List as many problems encountered with water-hardening steels as you can think of.
A: given; problem of water hardening steel?
Q: xplain the basic operation of closed-die forging. Use sketches to assist the explanation.
A: Given Data : Closed die forging
Q: A flat-rolling operation of 250 mm wide alloy stee Calculate roll torque
A: GIVEN: **Width (Wt)=250mm **Diameter of rollers (D)=600mm **Height before rolling (ho)=30mm**Height…
Q: What property of a metal describes its ability to be easily drawn into a wire but not rolled into a…
A: Engg. materials are used as per their properties for the various engg. works. Each material have…
Q: Q16. A mug is to be made from alumina. Which forming method would be most suitable?
A:
Q: An open die forging operation is performed to produce a steel cylinder with a diameter o 9.7mm and a…
A:
Q: What is the influence of chromium and silicon on forged irons?
A: Chromium increases the hardenability of the steel. It enhance the corrosion resistance of the…
Q: Which material is stronger? 250 maraging steel at room temperature (RT) or 6061 T6 aluminum sheet at…
A: Aluminium is around one-third the weight of stainless steel, which is why it's employed in…
Q: A cold heading operation is performed to produce the head on a steel nail. The strength coefficient…
A:
Q: a) Draw a stress-strain curve for a low carbon, medium carbon, high carbon steels (use only one…
A: (a) The stress strain curve of the low, high and medium carbon steel is given below: The point 1…
Q: What are the advantages of forging process?
A: Advantages of forging 1. Parts manufactured are stronger. 2. Forging offers high ductility. 3.…
Q: A 1-in diameter hole is to be punched through a 1/8-in thick annealed titanium-alloy Ti-6Al-4V…
A:
Q: List factors affecting metal forming performance
A: The factors affecting metal forming performance are: 1. Temperature All metals re hard and strong.…
Q: Comparison factor Volumetric deformation Sheet metal work Surface area/volume ratio: High, Low Basic…
A: comparison factor volume deformation sheet metal work surface area/volume ratio; the area of…
Q: Materials, properties and testing Describe the effect bend testing have on the mechanical properties…
A: A bend test is a technique for measure stiffness and yield properties of certain materials. Bend…
Q: 3. The following shape of part is desired to be punching/piercing from a sheet metal of 4mm,…
A: Note that the values are different in the text and the image given. The solution given below is…
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: 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: In a blanking operation to produce steel washer, the maximum punch load used is 3 x 105 N. The plate…
A: Given, Maximum push load = F = 3 x 105 N Plate thickness = t = 5 mm = 5 x 10-3 m Penetration = p =…
Q: Rolling direction of cold rolled carbon steel has direct effect on tensile, yield strength and the…
A: the rolling direction of cold-rolled carbon steel is moved in the opposite direction of the roller…
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…
Q: Compare the differences between hot and cold rolled steel in terms of their processing and…
A: we have to evaluate differnces between cold rolled and hot rlled steel
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- What happens to the shear stress as flexural capacity increases?What other properties can a metal's hardness reveal?1. Please draw a typical tensile test curve for low carbon steels and mark the four stages and list their names (use critical points on the curve to help you identify the start and end points of the four stages). 2. Show the yield, ultimate tensile strength and fracture points, as well as yield and ultimate tensile strength on the curve. 3. Please draw the load and unload curve for a stress level causing the low carbon steels to experience elastic deformation only. 4. Please draw the load and unload curve for a stress level causing the low carbon steel to experience permerment deformation, and identify both elastic and plastic strain on the drawing after unloading.
- What is true stress and true strain?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 ProcessWhat property of a metal describes its ability to be easily drawn into a wire but not rolled into a sheet without splitting?
- What is period of deformation?How can the ductility of material be specified?Anisotropy in a metal O increases residual stresses. O properties vary with direction. increase the amount of toughness. increase the amount of springback. explosive forming increase the degree of ductility. O increases the strain hardening exponent. Vacuum line in the die is found in forging Tolling wire drawing deep drawing explosive forming Bending extrusion bar drawing