26-05-2012, 02:47 PM
Casting Processes
Casting Processes.pdf (Size: 3.15 MB / Downloads: 244)
Types of Parts Made
Engine blocks
•Pipes
•Jewelry
•Fire hydrants
Complex, 3-D shapes
Near net shape
•Low scrap
•Relatively quick process
•Intricate shapes
•Large hollow shapes
•No limit to size
•Reasonable to good surface finish
Processes
Sand
•Shell
•Plaster
•Ceramic
•Investment
•Lost foam
•Pressure
•Vacuum
•Die
•Centrifugal
•Squeeze
•Semi-solid
•Single crystal
• Directional solidification
•Slush
•Continuous
Metals processed by casting
•Sand casting – 60%
•Investment casting – 7%
•Die casting – 9%
•Permanent mold casting – 11%
•Centrifugal casting – 7%
•Shell mold casting – 6%
Capabilities
•Dimensions
–sand casting - as large as you like
–small - 1 mm or so
•Tolerances
–0.005 in to 0.1 in
•Surface finish
–die casting 8-16 micro-inches (1-3 mm)
–sand casting - 500 micro-inches (10-25 mm)
Casting Processes.pdf (Size: 3.15 MB / Downloads: 244)
Types of Parts Made
Engine blocks
•Pipes
•Jewelry
•Fire hydrants
Complex, 3-D shapes
Near net shape
•Low scrap
•Relatively quick process
•Intricate shapes
•Large hollow shapes
•No limit to size
•Reasonable to good surface finish
Processes
Sand
•Shell
•Plaster
•Ceramic
•Investment
•Lost foam
•Pressure
•Vacuum
•Die
•Centrifugal
•Squeeze
•Semi-solid
•Single crystal
• Directional solidification
•Slush
•Continuous
Metals processed by casting
•Sand casting – 60%
•Investment casting – 7%
•Die casting – 9%
•Permanent mold casting – 11%
•Centrifugal casting – 7%
•Shell mold casting – 6%
Capabilities
•Dimensions
–sand casting - as large as you like
–small - 1 mm or so
•Tolerances
–0.005 in to 0.1 in
•Surface finish
–die casting 8-16 micro-inches (1-3 mm)
–sand casting - 500 micro-inches (10-25 mm)