A tube of 12 mm external diameter and 1mm thickness is to be reduced to 16 mm external diameter and 0.5 mm thickness. The die angle is 24º and plug angle is 16º. The coefficients of friction at die and tube interface and tube and plug (mandrel) interface is 0.5. The flow stress of tube material is 340 N/mm2 . The tube drawing is carried at a speed of 0.4 m/s. Calculate the fixed plug

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A: Write the extrusion ratio.   rx=4   Write the length and diameter of the billet.   L=3 inD=1 in…

Q: ♦ Wire of starting diameter = 3.0 mm is drawn to 2.5 mm in a die with entrance angle = 15° degrees.…

A: Step 1:Step 2:

Q: required at the moment of reaching the yield point (ℇ = 0.002) b) Force required when you have a…

A:

Q: * A cylindrical workpiece made of 1100-0 Aluminum that is 18 in high and 16 in in diameter and is to…

A: The forging force for open die forging is 1.3 MN.

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: A cold rolling operation is to be used to reduce a 50 mm thick and 200 mm wide copper plate. The…

A: given; initial thickness(h1)=50mminitial width(w1)=200mmentry velocity(v1)=15m/minexi…

Q: A sheet 300mm wide 25mm thick with two drives, each with a radius of 250mm it is passed through a…

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Q: Less of 3-0 mm is to be reduced n and wall thickness 2-0 mm. D = 0-1 and draft = 3.1. Compare t…

A:

Q: find the die shape factor in an extrusion process, if the diameter of the extruded cross-section is…

A: Given data Diameter of extruded cross section = 15 cm Diameter of circle cross section = 10 cm Find…

Q: Calculate the ram pressure during indirect extrusion process when a cylindrical billet is 300 mm…

A: Stress is defined as the intensity of force exerted over a unit cross sectional area. The normal…

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.