types of casting pdf

Special Casting Process 1. Permanent mould casting A permanent mold casting makes use of a mold or metallic die which is permanent.molten metal is poured Sand casting-Conventional mould-Core making-Need for special casting process- e) The ability to use the techniques, skills, and modern engineering tools However, not all alloys can be cast by all processes. The most common metal casting processes are sand casting, investment casting, and die casting. These are Pouring technique. ▫ Molten metal is poured into the mold at a proper rate to ensure that erosion and or defects are minimizedSpecial Casting Processes 1. Shell Casting 2. Investment Casting 3. Centrifugal Casting 4. 1.Shell Molding • A heated (200 ºC to 300 ºC ) metal pattern. Shell Sand castings are produced in specialized factories called foundries. Over 70% of all metal castings are produced via a sand casting process. Permanent-mold Casting Processes. □. Casting Techniques for Single-crystal Components. □. Rapid Solidification. □. Inspection of Castings. INTRODUCTION: Introduction to special casting techniques. (2). SHELL MOULDING: Shell moulding machines - pattern equipments - sands, resins and other materials