Precision Machining

    Nowadays, whether it is China or the world, the development of industry has been inseparable from aluminum alloy materials, and aluminum alloy has a very important position in industrial development. The reason why aluminum is made into an alloy is that after adding some specific metal elements to make an alloy, the physical properties of pure aluminum often undergo specific changes, and most of these changes are better, and It has the characteristics that other metals do not have. For example, aluminum-magnesium alloy has good corrosion resistance, and aluminum-copper alloy has very good tensile strength and hardness.

    Although the advantages and benefits of aluminum alloy materials are particularly numerous, there is always a huge problem in its application, that is, we are using aluminum alloy as raw materials to manufacture some machinery, etc. Deformation occurs when the components are not solved. If this problem is not solved, it will become a huge obstacle to the application of aluminum alloy materials.

    The deformation phenomenon of aluminum alloy materials, on the one hand, is due to the lack of theoretical foundations of our technical personnel and the lack of some necessary theoretical basis for component manufacturing. The lack of theory directly leads to The selection of processing parameters is very conservative, which affects the performance of the high-speed machining center. There is also the side effect of cutting force. According to the analysis of physics theory, in the processing of metal materials, under the action of cutting force, the machining surface of the part will produce residual stress, and this residual stress will cause the deformation of the part. In addition, the occurrence of the knife phenomenon will also cause the aluminum alloy material to deform. The knife phenomenon in the machining process mainly refers to the workpiece or tool returning to the initial position and leaving a certain distance from each other after the end of a machining stroke.

    When using aluminum alloy materials for the manufacture of mechanical components, due to the large yield ratio and small elastic modulus of aluminum alloy, springback is likely to occur during machining and cutting , So as to produce a certain shape error to the processed parts. The knife phenomenon is a factor that often occurs in the manufacture of aluminum alloy components and has a very obvious influence.