relieving residual stress

KEY WORDS:
vibratory stress relief
residual stress relieving
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reduce residual stress
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residual stress average
residual stress homogenization
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eliminate residual stress
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relieving stress of welded parts
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Vibratory Stress Relief for Metal
replace thermal effectiveness

HS CODE:8479819000

Definition of VSR(vibratory stress relief)
It describes a physical process is this: that is tightly controlled using a vibration energy,
the metal work piece is processed to resolve the workpiece during and after the processing of
the internal and residual stresses occur dimensional changes resulting load capacity and resistance to change.VSR（vibratory stress relief) to eliminate, reduce or homogenizing the residual stress of the metal workpiece, the workpiece to improve resistance to static and dynamic load, the deformation resistance, stability, efficacy superior dimensional accuracy.

VSR(vibratory stress relief) principle
From the micro level analysis, VSR can be regarded as a kind of cyclic loading is applied in the form of an additional stress on parts. When the workpiece is subjected to vibration applied to the alternating stress on parts and components in the residual stress superposition. When the result of superposition of the stressreaches a certain value, the worst part of the stress concentration will exceed the yield limit of the materialis plastically deformed. This is where the residual plastic deformation reduces the stress peaks and strengthen the metal matrix, and then the vibration but also in other parts of the stress concentration is generated on themore serious the same effect until the vibration superposition of additional stress and residual stress of thealgebraic and not cause any part of the plastic deformation, at which time, and both vibration to eliminate residual stress and strengthening of metal on the end of the process.

3000 series full-automatic vibratory stress relief equipment

Item / model	3000K1	3000K2	3000K3	3000K4	3000K5
Max centrifugal(KN)	10	15	30	40	50
Speed(rpm)	1000-10000	1000-8000	1000-8000	1000-8000	1000-8000
Max treat weight(T)	2.5	10	50	100	500
Rated power(KW)	0.6	1.2	1.5	2.2	3.6
Rated voltage(V)	220V/50Hz	220V/50Hz	220V/50Hz	220V/50Hz	220V/50Hz
Steady speed precision(r/min）	±1	±1	±1	±1	±1
Acceleration(m/s2)	0~199.9	0~199.9	0~199.9	0~199.9	0~199.9
Time range(min)	0~40	0~40	0~40	0~40	0~40
Color screen	Dynamic display a-n,a-t data of surve and specification on-line
Printing	a-n,a-t surves,specification data and specification contrast
Dynamic tracking function	According to the variation of parameters of workpiece adjust the aging parameters automatically in the aging process