Factors Affecting Tensile Properties of Castings 2004-01-1021
The basic data on the mechanical properties of a casting are frequently obtained from a tensile test, in which a suitable specimen machined from the casting is subjected to increasing axial load until it fractures. The engineering tension test is widely used by casting manufacturers as an acceptance test for customer specifications. However, tensile bars machined from castings often provide undesirable information, thereby leading one to question the part integrity.
This paper, therefore, discusses the various factors that affect tensile properties obtained from specimens machined from actual castings. These factors include:
1
Type of casting process
2
Wall thickness of castings
3
Microstructure
4
Size and distribution of inclusions in a tensile bar
5
Type and distribution of porosity in a tensile bar
6
Size and shape of tensile bar
7
Location of tensile bar in a casting
Results from this investigation indicate that achieving undesirable tensile properties do not necessarily indicate that a part would not perform its intended function satisfactorily.
Author(s):
Rathindra DasGupta, Sumantra DasGupta, Craig Brown
Affiliated:
SPX Corporation, CONTECH Division
Pages: 9
Event:
SAE 2004 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Developments in Lightweight Aluminum Alloys for Automotive Applications: 2001-2005-PT-130, Advances in Lightweight Automotive Castings and Wrought Aluminum Alloys-SP-1838
Related Topics:
Tensile strength
Casting
Suppliers
Logistics
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