6. You have been consulted to design a draw die system for a wire production facility.The starting diameter is 3.0 mm and velocity is 5 m/s. The final diameter is 1.55 mm.Area reduction in drawing (r) is guided by the formulaA, – AfAowhere A,=original area of work and AFfinal area.The upper limits for r are 0.50 for single-draft bar drawing and 0.30 for multiple-draftwire drawing respectively. Sketch the draw die system with all applicable systemvalues/measurements incorporated. Assume no changes in volume due to forming.

Answered: Image /qna-images/answer/1797481c-05e3-44c2-8e7e-bc35a596b72e.jpg

6. You have been consulted to design a draw die system for a wire production facility. The starting diameter is 3.0 mm and velocity is 5 m/s. The final diameter is 1.55 mm. Area reduction in drawing (r) is guided by the formula Ao – Af A. where A,=original area of work and Afinal area. The upper limits for r are 0.50 for single-draft bar drawing and 0.30 for multiple-draft wire drawing respectively. Sketch the draw die system with all applicable system values/measurements incorporated. Assume no changes in volume due to forming.

6. You have been consulted to design a draw die system for a wire production facility. The starting diameter is 3.0 mm and velocity is 5 m/s. The final diameter is 1.55 mm. Area reduction in drawing (r) is guided by the formula Ao – Af A. where A,=original area of work and Afinal area. The upper limits for r are 0.50 for single-draft bar drawing and 0.30 for multiple-draft wire drawing respectively. Sketch the draw die system with all applicable system values/measurements incorporated. Assume no changes in volume due to forming.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Similar questions

Q#1: (a) Explain the advantage of corner radii of punch and die in Sheet Metal Drawing Process. (b) Explain the disadvantages of Tube Drawing process in which mandrel is not used.
1. Derive an expression for the reduction r in drawing as a function of drawing ratio DR.2. A cup is to be drawn in a deep drawing operation. The height of the cup is 75 mm and its insidediameter = 100 mm. The sheet-metal thickness = 2 mm. If the blank diameter = 225 mm, determine(a) drawing ratio, (b) reduction, and (c) thickness-to-diameter ratio. (d) Does the operation seem feasible?3. A drawing operation is used to form a cylindrical cup with inside diameter = 65 mm and height =50mm. The starting blank size = 140 mm and the stock thickness = 2.8mm. determine (a) drawing forceand (b) holding force, given that the tensile strength of the sheet metal (low-carbon steel) = 350 MPa andyield strength = 190 MPa. The die corner radius = 6 mm. Based on these data, is the operation feasible?
Q#4:(a) Explainthe advantage of corner radii of punch and die in Sheet Metal Drawing Process.
A drawing operation is used to form a cylindrical cup with inside diameter of 75 mm and height of 50 mm. The starting blank size is 140 mm and the stock thickness is 2.4 mm. Based on the data, is the operation feasible?
In a wire drawing operation diameter of a steel wire is reduced from 10 mm to 8 mm. The mean flow stress of the material is 400 MPa.what is the ideal force required for drawing (ignoring friction and redundant work).?
Forging procedures may be classified in part by how much room there is for movement in the die. Please identify the three primary classes that this system generates.
The maximum possible draft in rolling which is the difference between initial and final thickness of the sheet metal, depends on A. Rolling force B. Roll radius C. Roll width D. Yield shear stress of the material
A solid cylindrical work piece is reduced in height by an open die forging process using flat dies on a mechanical press, powered by a 20 kW motor which operates at 35 strokes per minute with a stroke length of 160 mm. The work piece is 60 mm high and 100 mm in diameter and is to be reduced in height by 15%. The coefficient of friction during the operation is 0,18. Calculate the flow stress of work piece material if the press is set to operate at 90% of its maximum capacity.
In your own words, state and justify your assumptions and comment on your working.Marks will be assigned for the quality of the presentation of the working and od the comments.
Repeat the above exercise for basic sheet metal working operations.
Q#4: (b) Explain the disadvantages of Tube Drawing process in which mandrel is not used.
In a rolling operation using rolls of diameter 500 mm, if a 25 mm thick plate cannot be reduced to less than 20 mm in one Pass, Estimate the coefficient of friction between the roll and the plate.