ZHEJIANG YITIAN PRECISION MACHINERY CO.,LTD
How does GANTRY TYPE HIGH SPEED PRECISION FOUR-PILLAR PRESS eliminate internal stress
The common structures of GANTRY TYPE HIGH SPEED PRECISION FOUR-PILLAR PRESS are three-beam and four-pillar and four-beam and four-pillar structures. Steel castings are often used in the manufacture of GANTRY TYPE HIGH SPEED PRECISION FOUR-PILLAR PRESS fuselage. The beams are mostly welded by steel plates. So how to eliminate the internal stress in the GANTRY TYPE HIGH SPEED PRECISION FOUR-PILLAR PRESS frame after welding?
How to eliminate the internal stress in the GANTRY TYPE HIGH SPEED PRECISION FOUR-PILLAR PRESS frame is a very important issue. If the steel plate is welded, it is directly on the lathe to go to the car, which may be helpful to eliminate the internal stress in the frame. Not very advantageous. We have several ways to eliminate internal stress. At present, there are three. One is to place it in a natural environment to slowly eliminate internal stress. Of course, it can be achieved by putting it outdoors in the wind and the sun, the wind and the rain, and the passage of time. This cycle is relatively long and can last for a few months for a year.
Another method is to put it in the furnace for high temperature heating for annealing treatment. This is a method commonly used by everyone at present. Of course, this method also has its drawbacks. The first is that it consumes more energy and is prone to pollution. , The volume of the furnace is relatively large, if it is a relatively large workpiece, it is not easy to get on the furnace? There is another way, we are currently relatively novel using mechanical vibration to eliminate a large amount of internal stress.
Vibration stress relief is abbreviated as vibration aging, also known as vibration stress relief method, which is to perform vibration treatment for several minutes to tens of minutes at the natural frequency of GANTRY TYPE HIGH SPEED PRECISION FOUR-PILLAR PRESS to eliminate its residual stress and stabilize the dimensional accuracy. One way. This process has the characteristics of low energy consumption, short time, and remarkable effect. The essence of vibration aging is to apply additional stress to the workpiece in the form of vibration. When the workpiece reaches or exceeds the yield limit of the material, the workpiece undergoes microscopic plastic deformation to reduce and homogenize the residual stress in the workpiece and stabilize the dimensional accuracy. Additional stress is applied to the workpiece. There are many ways to do it.