FUNDAMENTALS OF METAL CASTING

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n V TST C m A Chvorinov's Rule where TST = total solidification time; V = volume of the casting; A = surface area of casting; n = exponent usually taken to have a value = 2; and C m is mold constant ©2002 John Wiley & Sons, Inc. M. P. Groover, “Fundamentals of Modern Manufacturing 2/e”
Mold Constant in Chvorinov's Rule •C m depends on mold material, thermal properties of casting metal, and pouring temperature relative to melting point •Value of C m for a given casting operation can be based on experimental data from previous operations carried out using same mold material, metal, and pouring temperature, even though the shape of the part may be quite different ©2002 John Wiley & Sons, Inc. M. P. Groover, “Fundamentals of Modern Manufacturing 2/e”
Page 1 and 2: FUNDAMENTALS OF METAL CASTING •Ov
Page 3 and 4: Figure 10.1 - Classification of sol
Page 5 and 6: Capabilities and Advantages of Cast
Page 7 and 8: Parts Made by Casting •Big parts:
Page 9 and 10: The Mold in Casting •Contains cav
Page 11 and 12: Two Categories of Casting Process 1
Page 13 and 14: Figure 10.2 (b) Sand casting mold
Page 15 and 16: Forming the Mold Cavity •Mold cav
Page 17 and 18: Gating System Channel through which
Page 19 and 20: Heating the Metal • Heating furna
Page 21 and 22: Solidification of Metals Transforma
Page 23 and 24: Solidification of Pure Metals •Du
Page 25 and 26: Most alloys freeze over a temperatu
Page 27: •Solidification takes time Solidi
Page 31 and 32: Figure 10.8 - Shrinkage of a cylind
Page 33 and 34: Solidification Shrinkage •Occurs
Page 35 and 36: Directional Solidification •To mi
Page 37 and 38: Figure 10.9 - (a) External chill to

FUNDAMENTALS OF METAL CASTING

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