FUNDAMENTALS OF METAL CASTING

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Disadvantages of Casting •Different disadvantages for different casting processes: Limitations on mechanical properties Poor dimensional accuracy and surface finish for some processes; e.g., sand casting Safety hazards to workers due to hot molten metals Environmental problems ©2002 John Wiley & Sons, Inc. M. P. Groover, “Fundamentals of Modern Manufacturing 2/e”
Parts Made by Casting •Big parts: engine blocks and heads for automotive vehicles, wood burning stoves, machine frames, railway wheels, pipes, church bells, big statues, and pump housings •Small parts: dental crowns, jewelry, small statues, and frying pans •All varieties of metals can be cast, ferrous and nonferrous ©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: Capabilities and Advantages of Cast
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 and 28: •Solidification takes time Solidi
Page 29 and 30: Mold Constant in Chvorinov's Rule
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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