ANALISA KEGAGALAN PADA SPINDLE MESIN BATCH CENTRIFUGAL
ABSTRACT: Failure analysis was
conducted on the failure shaft of batch centrifugal. In the analysis the stress
analysis was used to know the stress distribution, and in conjuction with
stress analysis the life time of the component can be estimated. In addition,
the fractography anlaysis together with mechanical properties test were carried
out to understand the mechanism of the failure. With respect to the result of
analysis shows that the failure was caused by fatigue crack initated on the
surface of shaft due to the inhomogeneus mechanical properties, in this case,
the hardness is lower than that on sub surface of the shaft. Besides that, the
stress concentration was found take place on the surface of shaft on which the
crack was initated. Further, it was known that during machining process, the
material of shaft was heated on elevated temperature on the surface to ease the
process. The heating reduced the hardness as well as the strength of the
material.
Penulis: Anindito Purnowidodo,
Ari Wahjudi, Riza Prawira
Kode Jurnal: jptmesindd110252
