FOUNDRY CAPABILITIES

Chicago Aluminum Castings Co. provides engineering assistance to help design cost effective cast aluminum parts, or to help turn fabricated parts into castings of greater economy, productivity and end-result efficiency. We assist with pattern design to customer requirements to insure accuracy and proper gating/risering techniques. High engineering standards coupled with scrupulous quality control procedures insure that the quality of our castings meets all technical requirements.

Plant: 14,000 Sq. Ft. foundry
Equipment: 2 jolt-squeeze units
20" x 24" C-Series Hunter automatic molding machines
3 500 lb., gas fired, crucible-type melting furnaces
Molding: loose molding
match plate molding
automatic molding
Capability: from 1 oz. to 120 lbs
Work: loose work
floor work
prototypes
squeezer
Hunter HMP-20C (deep flask)
Inserts: steel inserts
brass inserts
iron inserts
Secondary Operations: heat treating
polishing
anodizing
assembly
impregnating
machining
Surface Treatments: polishing
anodizing
painting
hardcoating
Testing: spectrometer disc (chemical composition)
tensile bars (mechanical properties)
x-ray
dye-penetrant

CAST ALUMINUM ALLOYS:
 
Alloys Tensile
PSI
Yield
PSI
Elong.
%
Brinnell
ALMAG 35 (535)+:
-high tensile strength
-machinability
38,000 20,000 9.0%
70
Tenzalloy (713)*:
-high strength
36,000 26,000 5.0%
74
Alloy 319:
-general low cost uses
27,000 18,000 2.0%
70
Alloy 355*:
-pressure tight applications
27,500 15,500 3.5%
75
Alloy 356*:
-pressure tight applications
25,000 13,000 7.0%
65
Precedent (771)*+:
-replaces malleable iron
-high yield strength
-impact resistance
43,000 33,000 5.0%
93
Alloy A-206 T71*+:
-high fatigue properties
-impact properties
54,000 45,000 3.0%
95
Alloy 443:
-pressure applications
24,000 9,000 8.0%
45
* heat treatable for increased mechanical properties
+ Technical Brochure available upon request