| PROSNA, INC. GLOBAL SOURCING |
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| We specialize in the global sourcing of custom manufactured metal parts | |
| DIE CASTING PPROCESS |
| Die Castings | Investment Castings | Sand Castings |
| Casting Process Comparison Chart | ||
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| Low Cost - High Quality Die Castings in Aluminum, Brass, Magnesium, Zinc, and related Alloys |
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DIE
CASTING PROCESS Die Casting, Pressure Die Casting, and Vaccum Die Casting are accomplished by pouring, injecting or pulling melted metal into a hardened metal mold, called a die. The advantage of die castings is that you can rapidly create thin wall complex shapes with high dimensional accuracy, sharply defined, and with a smooth or textured surface. The disadvantage to die casting is it's limitation to low melting point non-ferrous alloys. This is becasue high melting point alloys would damage the die. The process begins by making a steel die, which will be capable of making tens of thousands of castings, in at least two sections to permit the removal of the raw castings. These sections are mounted in a machine and are set so that one section is stationary and the other is movable. The casting cycle begins by clamping the two die halves tightly together. Liquid metal is then poured or injected into the die cavity or cavities. When it solidifies, the two die halves are drawn apart and the casting is ejected. Once removed from the die, the castings normally require very few secondary operations, usually just flash trimming, buffing, perhaps holes tapped or machined to a final tolerance, and then anodized, painted,or plated. The complete cycle of the die casting process is the fastest known process for making precision non-ferrous parts. Die cast parts are generally less than 20 Lbs (9 kgs), but can be as large as 50 Lbs (22.73 kgs). Good examples of die cast parts are door handles, hood ornaments, and lamp bases. |
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| Alumimum Die Castings Brass Die Castings Magnesium Die Castings Zinc Die Castings |
| ADVANTAGES | DISADVANTAGES |
| Complex Shapes Possible Thin Wall Sections Possible High Production Rates High Dimensioal Accuracy Surface Finish Normally RMS 20-120 Minimum Surface Treatment Prior to Plating |
Castings Generally
Limited to 20 Lbs or Less Voids & Porosity Possible in Complex Shapes Expensive Machinery & Dies Limited to Metals With Low Melting Points |
| SECONDARY
OPERATIONS Conventional or Precision CNC Machining Heat Treating Surface Finishing - Etching, Vibration, Grinding, and Polishing Plating - Anodizing - Painting - Powder Coating Certified Metallurgical and Non-Destructive Testing |
| Tel 219-924-1252 | PROSNA, INC. | www.prosna.com |
| Fax 219-924-1260 | 530 Superior Avenue | info@prosna.com |
| Munster, Indiana 46321 USA | ||
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