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Chapter14ba

Chapter14ba - ©2003 Bil Young 1 Materials& Processes in...

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Unformatted text preview: ©2003 Bil Young 1 Materials & Processes in Manufacturing ME 151 Chapter 14 Expendable Mold Casting Processes ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ©2003 Bil Young 2 Introduction Introduction Casting processes can be classified into 3 categories: • Single use molds with multiple use patterns • Single use molds with single use patterns • Multiple use molds (Chapter 15) Expendable molds are made by combining binders with: • Sand • Plaster Most frequently cast metals: • _______ • Steel • ___________ • Brass • Ceramics • Other refractory materials • Bronze • Magnesium • Zinc Alloys • Nickel Based Superalloys ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ©2003 Bil Young 3 Sand Casting Sand Casting • Most popular of the casting processes • Wide range of casting sizes (oz. to tons) • Inexpensive and simple process • Ordinary sand mixed with clay and water • _______ is the most common means of filling the mold ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ©2003 Bil Young 4 Patterns Patterns Designing and making a ______ is the first step in making a sand casting Consideration must be given to: • Type of casting process used • Metal being cast • Molding technique used Pattern materials can be: • Wood • Metal • Plastics Types of patterns: • One Piece or Solid Patterns • Split Patterns • Match-Plate Patterns • Styrofoam • Wax • Cope & Drag Patterns • Loose-Piece Patterns ___________________________________...
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  • Spring '08
  • AlanT.Male
  • Sand casting, Expendable Mold Casting, Bill Young, mold casting processes, ___________________________________ ___________________________________

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Chapter14ba - ©2003 Bil Young 1 Materials& Processes in...

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