Casting_Processes_and_Core_Design_in_Manufacturing.pptx

casting

1. Casting Processes and Core Design in Manufacturing

2. Introduction Casting is a process where molten metal is poured into a mold to form a desired shape after solidification.

3. Objectives • Explain casting principles • Describe sand casting steps • Discuss core design • Identify casting defects and solutions

4. Types of Casting • Sand Casting • Die Casting • Investment Casting • Centrifugal Casting

5. Sand Casting Process 1. Pattern making 2. Mold preparation 3. Core placement 4. Metal pouring 5. Solidification 6. Shakeout and cleaning

6. Cores and Core Prints Cores form hollow sections in castings, while core prints support and locate cores within molds.

7. Core Design • Must withstand thermal and mechanical stress • Provide venting • Easy removal post casting • Accurate alignment

8. Casting Defects • Blow holes • Shrinkage cavities • Cold shuts • Misruns • Sand inclusions

9. Defect Prevention • Control pouring temperature • Good mold design • Proper venting • Dry sand and strong cores

10. Applications Used in manufacturing of engine blocks, pump housings, turbine blades, and machine parts.

11. Conclusion Casting remains essential in modern manufacturing for complex shapes. Core design ensures accuracy and quality.