It is important that the green strength properties of powder compacts be accurately determined if advanced manufacturing techniques, such as green machining, are to be exploited successfully. In this study, the green strength of Distaloy AE Densmix, a powder mix designed for such applications, was measured using several test methods. Fracture statistics were correlated with compact density and test method employed, and the Weibull modulus calculated for each case. It was found that Weibull analysis accurately predicted the green strength dependence on the test configuration utilised.
Get full access to this article
View all access options for this article.
References
1.
JamesW. B.: Int J. Powder Metall., 1994, 30, (2), 157–162.
EngstromU.: ‘PM'98: world congress on powder metallurgy’, paper 6; 1998, Shrewsbury, EPMA.
4.
WiebullW.: J. Appl. Mech., 1951, 18, 293–297.
5.
DarvelB. W.: J. Mater. Sci., 1990, 25, 757–780.
6.
BergerA., SUPANICICP. and DANZERR.: in ‘Ceramic materials and components for engines’, (eds. G J. G. and AldingerF.), 211–216; 2001, Weinheim, Wiley-V CH.
7.
PoquillonD., V. BACO—CARLES, PH. TAILHADES and E. ANDRIEU: Powder Technology, 2002, 126, 75–84
8.
TimoshenkoS. P. and GOODIERJ. N.: ‘Theory of Elasticity’, 3rd edn, 99; 1970, New York, McGraw—Hill.
9.
NeergaardL. J., NEERGAARDD. A. and NEERGARDM. S.: J. Mater. Sci., 1997, 32, 2529-2533
10.
VardarO. and FINNIEJ.: Int. J. Fract., 1975, 11, 3, 495–508
