1, the material and structure of the workpiece. The size of the workpiece deformation will be directly proportional to the complexity of the shape, the ratio of length to width and the size of the wall thickness, and also directly proportional to the rigidity and stability of the material. Therefore, when planning, attention should be paid to reducing the impact of these elements on the workpiece. Especially large parts structure, the need to achieve a reasonable structure, in addition to the need for rough hardness, loose and other issues of strict control, reduce workpiece deformation.
2, workpiece clamping. Workpiece clamping is very simple to cause workpiece deformation, in order to prevent the presentation of this deformation, the need to select the correct clamping point, and then select the appropriate clamping force according to the location of the clamping point. So try to adhere to the workpiece clamping point and support point consistent, so that the clamping force on the support effect, so that the clamping point can be closer to the processing surface, so as not to simply cause the deformation caused by clamping. When there are several directions on the workpiece clamping force effect, to consider the sequence of clamping force, on the workpiece and support touch clamping force should be the first effect, and not too large, on the balance of the cutting force of the main clamping force, should be the effect after. In addition to the completion of the above process, but also to increase the workpiece and fixture touch area or the use of axial clamping force. Increasing the rigidity of parts is an effective way to deal with clamping deformation. The increase of workpiece and fixture touch area, on the reduction of workpiece clamping deformation has a great assist.
.jpg)
3, precision CNC machining workpiece cutting tool. In the cutting process, the workpiece will be subjected to the effect of cutting force, showing the phenomenon of letting the knife, which is a kind of elastic deformation towards the direction of the force. In response to this kind of deformation, can be improved on the tool, precision machining requirements of the tool sharp, so as to reduce the resistance of the conflict between the tool and the workpiece, but also to improve the heat dissipation of the tool cutting the workpiece, reduce the remaining internal stress on the workpiece.
4. Stress deformation after precision CNC machining. Parts after processing itself there is a relatively balanced state of internal stress, although the shape of the parts at the moment is relatively stable, but when the removal of some data and heat treatment, the internal stress will change, then the workpiece needs to reach the balance of force. About this situation to be improved, can be treated by heat treatment method, the need to straighten the workpiece into a certain height, the use of must tooling pressed into a flat state, and then put the tooling and the workpiece together in the heating furnace, according to the different parts of the data, select different heating temperature and heating time. After hot straightening, it can make the internal arrangement of the workpiece stick to stability.
Asset Metal Technology focus on providing and developing one stop metal solution in CNC, etching, punching, anodizing manufacturing which widely used in field of toys, electronics, intelligent component, pilotless aircraft and vehicle.
+8613538580966
