Vibration Stress Relief equipment on the benefits of casting, welding and other components

Casting, welding, forging, machining, etc. during the manufacturing process, the workpiece internally generated residual stress. The presence of residual stress will inevitably lead to the deformation of the workpiece, cracking, and seriously affect the stability of the size of the workpiece, reduce the fatigue life of the workpiece. The traditional aging treatment is a natural aging and thermal aging. Natural aging long production cycle, the accumulation of capital, and the space occupied by: thermal aging and annealing temperature, and cooling time speed, aging furnace temperature difference and other factors, and huge investment. With the development of science and technology, increasing aging VSR due to aging effects of the dimensional stability of the workpiece, economical and practical, less investment, energy conservation obvious advantages, gradually replaced the traditional natural aging and thermal aging more and more widely used in practice.

Vibration Stress Relief from percussion aging. The workpiece through special equipment to generate the resonance in the natural frequency, so that the the cyclical dynamic stress and the residual stress is superimposed, so that the workpiece partially plastically deformed and release stress. Thereby reducing and averaging Chemical member internal residual stress, and the accuracy of the workpiece size to achieve stability. The vibration processing technology, also known as do vibration to eliminate stress, in the country, also known as VSR. It will have a the eccentric weights motor system (called the exciter) placed in the member, and the member is supported with rubber mats and elastic objects, as shown in Figure 2.1. Starter motor and adjust its speed by the controller, so that the member is in a resonance state. After about 20 to 30 minutes of vibration treatment can achieve the purpose of adjusting the residual stress. Vibration test systems and strain (or stress) test system, Vibration Stress Relief process used to measure amplitude-frequency characteristic curve monitoring the amplitude of the dynamic stress changes. The vibration treatment member equipment layout can be seen, to adjust the residual stress with a vibration technology is very simple and feasible.

The residual stress after the vibration treatment member can be eliminated from 40% to 50% high tensile stress area, left glazed winter eliminate larger than the low stress zone. Therefore can improve the strength and fatigue life, reduce stress corrosion, prevent or reduce the incidence of microscopic cracks caused due to the heat treatment, welding process, which advances in the ability of member resistance to deformation, stable members of precision, progressive mechanical quality.
steel Profile export
http://steelprofileexport.blogspot.com/2012/12/ultra-light-steel-structure-housing.html