Your company makes aluminum-magnesium profiles by extrusion. In an attempt to design a new product using the new alloy, your team performs a study on maximum loading of extrusion and maximum temperature at the surface of the billet at different extrusion conditions. Data are provided in the table above.
As shown in the table, extrusion velocity ranges from 5 (mm/s) to 50 (mm/s). R stands for the extrusion ratio. MN stands for
mega newton. Temperature listed after the load (MN) represents billet surface temperature.
• Plot extrusion limit diagram using maximum extrusion force vs. extrusion temperature.
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V (mml s)
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T (°C)
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250
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300
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350
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400
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450
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50
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R = 10
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2.4 MN, 415 °C
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2.25 MN, 435 °C
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1.75 MN, 470 °C
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1.46 MN, 515 °C
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1.17 MN, 525 °C
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R = 25
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3.2 MN, 475 °C
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3.1 MN, 490 °C
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2.35 MN, 510 °C
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1.90 MN, 530 °C
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R = 50
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3.9 MN, 530 °C
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3.75 MN, 550 9C
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2.82 MN, 570 °C
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13
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R = 10
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2.05 MN, 375 °C
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1.95 MN, 405 °C
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1.56 MN, 435 °C
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1.21 MN, 470 °C
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0.99 MN, 505 °C
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R = 25
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2.7 MN, 440 °C
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2.63 MN, 460 °C
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1.98 MN, 485 °C
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1.57 MN, 510 °C
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1.28 MN, 540 °C
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R = 50
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3.28 MN, 490 °C
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3.24 MN, 505 °C
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1.91 MN, 540 °C
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°C
2.38 MN, 525
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5
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R = 10
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1.82 MN, 350 °C
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1.75 MN, 380 °C
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1 ',A MN, A 1C 415°C
1 .34 1VIIN , 13
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1.05 MN, 455 °C
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0.88 MN, 495 °C
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R = 25
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2.38 MN, 410 °C
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2.35 MN, 435 °C
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1.75 MN, 460 °C
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1.37 MN, 490 °C
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1.14 MN, 525 °C
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R = 50
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2.9 MN, 470 °C
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2.84 MN, 485 DC
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2.1 MN, 500 °C
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1.65 MN, 515 °C
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1.35 MN, 545 °C
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