Engineer's
Handbook
 
Reference Tables
 
Rapid
Prototyping
 
Manufacturing
Methods
 
Engineering
Materials
 
Engineering
Software
 
Reference Books
 
Mechanical
Components
 

Reference Tables -- Sand-Mold Casting Tolerances


Sand-Mold Casting Tolerances

Sand-mold casting tolerances may vary considerably depending upon the type of metal used. A general comparison of casting tolerances is given in the following table.

Sand-Mold Casting Tolerances
Metal
Tolerance
±in./ft*
Aluminum Alloys 1/32
Cast Iron 3/64
Cu-Base Alloys 3/32
Cast Steels 1/16
Magnesium Alloys 1/32
Malleable Iron 1/32
* Note on parting line influence: When parting lines are considered, very close tolerances are difficult to obtain. A parting line absorbs fractions of inches per inch. A foundry is doing well to hold a parting line to 0.015 in. Additional measurement is added to the casting tolerance.


 

 

 

 

 

 

 


Copyright © 2004 - 2006 -- EngineersHandbook.com

All Rights Reserved - Contact Information
Privacy Policy
Disclaimer