THERMAL SCIENCE

International Scientific Journal

ENERGETIC ANALYSIS OF HARD FACING AND WELD CLADDING OF AN AIR POWERED DROP HAMMER DAMAGED RAM

ABSTRACT
This paper studies problems of hard facing of damaged and initially cracked mechanical engineering heavy parts of complex geometry such as large rams of air powered drop hammers. During long-term exploitation, these parts are subjected to thermal fatigue due to cyclic temperature changes and variable impact compression. Taking into consideration high ram costs and difficulties to purchase ram, the necessity of its reparation becomes obvious. The choices of the most suitable technologies of hard facing and welding of an initially cracked ram are also studied here. Besides the techno-economic analysis, an energetic analysis is performed as an additional criterion in assessment of the proposed technology.
KEYWORDS
PAPER SUBMITTED: 2010-05-01
PAPER REVISED: 2010-06-23
PAPER ACCEPTED: 2010-06-28
DOI REFERENCE: https://doi.org/10.2298/TSCI100501021L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2010, VOLUME 14, ISSUE Supplement 1, PAGES [S269 - S284]
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