Influence of eccentricity of double eccentricity sleeves on the movements of swing head in rotary forging press
2019
Abstract. Rotary forging is an innovative incremental metal forming
process, In a rotary forging press with double eccentricity sleeves, the
eccentricity of double eccentricity sleeves has significant effects on the
movements of swing head. The internal and external eccentricity of the
existing rotary forging machine is equal, except circular path, the rotation
speed of internal and external eccentric sleeves for the rose curve, spirals
curve and straight line is not equal, which will produce the oscillation
centrifugal force during the forming process and cause the violent shaking
on the machine. The shaking of the machine has an important influence on the
life of the equipment parts machining accuracy and surface profile of
parts, reducing the production efficiency. This paper proposes a method to
reduce shaking by changing eccentricity and studied the influence of
unequal eccentricity on the movements of swing head obtained the design
relationship of internal and external sleeves eccentricity, which can reduce
the shaking in rotary forging press. This study improving the working state
of the rotary forging machine and economic benefits.
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