Johnson Centrifugal Technology: The Wise Choice Over Forgings



By solidifying uniformly under high pressure, centrifugals combine the chemical and mechanical property capability of forgings with the cost efficiency of traditional castings. Furthermore, the defect-free tight grain structure of centrifugal castings makes them well suited for pressure containing and anodized applications. JBM optimizes this technology with custom chemistry, versatile casting and complete machining capabilities.

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FORGING, ETC.
CENTRIFUGAL
 
Single Source Capabilities  
No
 
YES
 
Provide Customized Alloys  
No
 
YES
 
Cost competitive on both small quantity and large  
Only at several ton order weights
 
Both small and large order sizes
 
Raw material cost  
Higher
 
Lower
 
Processing to usable form  
No
 
YES
 
Capabiliites to machine to final size or near form size  
No
 
YES
 
Testing and certification  
In-house
 
In-house
 
Delivery of product  
Typically 10-12 weeks
 
Typically 4-6 weeks
 
Cost Advantage  
None
 
 


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Centrifugal forming is also far superior to a sand casting!

  • The centrifugal process directional solidification avoids porosity and inclusions associated with centerline shrinkage defects in sand castings.
  • The material used to riser the centrifugal process is fed to the casting at 60 times the force used to feed a sand casting.
  • The solidification is fed by a huge surface area of high pressure molten metal rather than through a complex network of narrow gates and risers.
  • Our centrifugal process uses solid, high chill rate mold materials rather than pressed and glued particulate molds.
  • Surface examination of a machined centrifugal can completely qualify a part contrasted with expensive radiographic, ultrasonic or magnetic particle inspection required to determine the soundness of a sand casting.


 
     

©2006 Johnson Brass & Machine Foundry, Inc.
270 N. Mill Street
P.O. Box 219 - Saukville, WI 53080
Phone: 262-377-9440 Fax: 262-284-7066