The team is extruding a billet that is 80 mm long with diameter of 40 mm is directly to a diameter of 20 mm. The extrusion die has a die angle of 75°, see Figure 1. For the work metal, K = 600 MPa and n = 0.25. In the Johnson extrusion strain equation, a = 0.8 and b = 1.4. Remaining billet length 75 Ram pressure, p Do Figure 1: Extrusion process. Determine the following design parameters: (a) Extrusion strain (b) Ram pressure at L = 80, 40, and 10 mm. (c) Draw the relationship between the ram pressure and billet length and discuss the results. What are your recommendations to decrease the required ram pressure?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The team is extruding a billet that is 80 mm long with diameter of 40 mm is directly to a diameter of 20
mm. The extrusion die has a die angle of 75°, see Figure 1. For the work metal, K = 600 MPa and n =
0.25. In the Johnson extrusion strain equation, a = 0.8 and b = 1.4.
Remaining billet length
75
Ram pressure, p
Do
Figure 1: Extrusion process.
Determine the following design parameters:
(a) Extrusion strain
(b) Ram pressure at L = 80, 40, and 10 mm.
(c) Draw the relationship between the ram pressure and billet length and discuss the results. What are
your recommendations to decrease the required ram pressure?
Transcribed Image Text:The team is extruding a billet that is 80 mm long with diameter of 40 mm is directly to a diameter of 20 mm. The extrusion die has a die angle of 75°, see Figure 1. For the work metal, K = 600 MPa and n = 0.25. In the Johnson extrusion strain equation, a = 0.8 and b = 1.4. Remaining billet length 75 Ram pressure, p Do Figure 1: Extrusion process. Determine the following design parameters: (a) Extrusion strain (b) Ram pressure at L = 80, 40, and 10 mm. (c) Draw the relationship between the ram pressure and billet length and discuss the results. What are your recommendations to decrease the required ram pressure?
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