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2007.
ANALYSIS OF TOOL RADIUS ON VESSEL HEAD QUALITY MADE BY INCREMENTAL PLASTIC DEFORMATION
A experiences show that on vessel head quality the most effect make pressure force, radius of tool and number and order of operations. This paper present results of tool radius effect on pressure vessel heads quality made by numerical and experimental researches. Numerical analysis is performed by calculating critical buckling force. Presumption is, that wrinkling of circular plate after first deformation make the greatest effect on number of operations, and it directly instance on residual stress magnitude and distribution in finally product.