|
THE STEP-BY-STEP PROCESS
Below is the step-by-step process by which Sewah Studios produces fine-quality
cast aluminum historic markers. The process reads from left to right,
top to bottom.
Click to view our Online Video
|
|
|
|
|
Prepare pattern layout
|
Attach letters to pattern
|
Place pattern face-up on bottom board
|
|
|
|
|
|
Sift facing sand onto pattern
|
Position mold flask and clamp
|
Fill flask with molding sand
|
|
|
|
|
|
Pack sand with air hammer
|
Place new bottom board on mold and clamp
|
Flip mold over and remove clamps
|
|
|
|
|
|
Remove bottom board
|
Lift pattern from sand
|
Pat sand firm with hand trowel
|
|
|
|
|
|
Pat sand in seal / emblem
|
Cut gates in sand to channel molten metal into
mold cavity
|
Tilt mold and blow loose sand away with air hose
|
|
|
|
|
|
Place mold on bottom board and repeat process
for top half
|
Transfer molten metal from melting furnace to
pouring ladle
|
Pour molten metal into mold
|
|
|
|
|
|
Remove casting from sand
and hose down with water
|
Saw gates off of casting
|
Remove rough edges from
casting with air chisel
|
|
|
|
|
|
Grind letter faces
and casting surface
|
Repair flaws and pits in casting
|
Spray paint two coats of background paint and
bake dry
|
|
|
|
|
|
Airbrush special detail
when required
|
Roll paint on raised letters
|
Apply gold leaf to letter
faces
when specified
|
|
|
|
|
Final touch-up
prior to baking dry
|
A sample final product prior to
wrapping for shipment
|
|