A sheet 300mm wide 25mm thick with two drives, each with a radius of 250mm it is passed through a rolling stand with rollers. Work is thickness in one layer at 50 rpm roll speed 22 reduced to mm. The work material has a yield curve determined by K = 275 MPa and n = 0.15. The friction coefficient between the rollers and the work is considered to be 0.12. Successful rolling of friction Determine if it is sufficient to allow its operation. If it is sufficient; a) Rolling force, b) Moment c) Calculate the power.

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: Rolling: A rolling operation is performed on a 5 mm thick sheet of low carbon steel (K=530, n=0.26…

A: Given:To find:

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: Estimate the power for annealed 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: 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: 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: - 400 mm wide 25 mm thick strip is fed through a rolling mill with two powered olls each of radius…

A:

Q: 1) Drawing: Consider a cylindrical rod fabricated from a linear strain hardening material with a…

A: Given:The constitutive relationship is .The original diameter of the rod is .For completely elastic…

Q: entry angle = 15o. The starting diameter is 0.100 in. And the final diameter = 0.080 in. The…

A: first of all find out tru strain and then mean flow stress from given data.refer below image.

Q: Estimate the power for annealed low carbon steel strip 200 mm wide and 10 mm thick, rolled to a…

A: Given w=200mmti=10mmtf=6mmμ=0.1n=0.26σ=530 MPa

Q: A rolling operation on a 250 mm wide, 8 mm thick, 1112 cold rolled steel takes place using hardened…

A: Since it is not mentioned how many parts in the question are to be solved, the first three subparts…

Q: Calculate (1) die pressure distribution and (2) forging force for plane strain forging (open die…

A:

Q: In a slab rolling operation, the maximum thickness reduction (del hmax) is given by del hmax = μ²R,…

A: Given:∆hmax=μ2 RR= radius of the roll,μ= coefficient of frictionμ=0.1

Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.