Chapter14ba - 2003 Bil Young 1 Materials &...

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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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This note was uploaded on 04/19/2008 for the course ME 151 taught by Professor Alant.male during the Spring '08 term at Kentucky.

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Chapter14ba - 2003 Bil Young 1 Materials &...

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