IRON-CARBON EQUILIBRIUM DIAGRAM
Fig. 8.6 shows, the Fe-C equilibrium diagram in which various structure (obtained during heating and cooling), phases and microscopic constituents of various kinds of steel and cast iron are depicted.…
SHELL MOLD CASTING
Shell mold casting process is recent invention in casting techniques for mass production and smooth surface finish. It was originated in Germany during Second World War. It is also called…
Comparison Between Permanent Mold Casting And Die Casting
The comparison between permanent mold castings and die casting given as under in Table 13.1 Table 13.1 Comparison between Permanent Mold Castings and Die Casting.
Advantages Of Die Casting Over Sand Casting
1. Die casting requires less floor space in comparison to sand casting. 2. It helps in providing precision dimensional control with a subsequent reduction in machining cost. 3. It provides…
PRESSURE DIE CASTING
Unlike permanent mold or gravity die casting, molten metal is forced into metallic mold or die under pressure in pressure die casting. The pressure is generally created by compressed air…
SLUSH CASTING
Slush casting is an extension of permanent mold casting or metallic mold casting. It is used widely for production of hollow casting without the use of core. The process is…
Plaster Molding
Plaster molding process is depicted through Fig. 12.15. The mould material in plaster molding is gypsum or plaster of paris. To this plaster of paris, additives like talc, fibers, asbestos,…
Shell Molding
Shell mold casting is recent invention in molding techniques for mass production and smooth finish. Shell molding method was invented in Germany during the Second World War. It is also…
Carbon-Dioxide Gas Molding
This process was widely used in Europe for rapid hardening the molds and cores made up of green sand. The mold making process is similar to conventional molding procedure accept…
MOLDING METHODS
Commonly used traditional methods of molding are bench molding, floor molding, pit molding and machine molding. These methods are discussed as under. Bench Molding This type of molding is preferred…
