. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DESIGN DETAILS
Cosmetic secondary fi nishes give castings appeal. • Aluminum castings offer various fi nal sur- face fi nishing options using a combination of secondary fi nishing processes, such as powder coating, epoxy paint, alodine, an- odizing (color and clear), plating and hard metalized coatings.
Light weight, smooth transitions and aesthetically pleasing design meet structural requirements. • Smooth transitions and three-dimensional com- plex confi gurations can be produced consistently piece to piece only in the metalcasting process.
• Aluminum 356 T6 alloy provides a better strength- to-weight ratio over the fabricated steel sub- assemblies.
• The one-piece casting design offers drastic lead time and overall cost reductions.
• A thick section at the parting line provides the connections for the in-gates required for smooth liquid metal entry into the mold cavity.
• The one-piece casting is tortionally rigid, lighter in weight and more precise in shape and form than the steel fabrication.
Jiten Shah is president of Product Development & Analysis (PDA) LLC, Naperville, Ill., and a 25-year casting design and manufacturing veteran.
JANUARY/FEBRUARY 2010 METAL CASTING DESIGN & PURCHASING 23
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