CNC Milling Service

Aluminum alloy products processing problems

Aluminum alloy products processing problems

Table of Content

Why are there problems in the processing of aluminum alloy products?

The aluminum material has a large thermal expansion coefficient, and is prone to deformation when processing thin-walled materials, especially when free forging blanks are used, the machining allowance is large, and the deformation problem is more prominent.

Now let’s learn the deformation treatment method of CNC machining aluminum alloy parts.

In the process of cemented carbide cutting, due to the shape of the workpiece, the characteristics of the workpiece, and the mechanical properties of the workpiece, there are many reasons for the deformation of the aluminum alloy workpiece, mainly in the following aspects: deformation caused by the internal stress of the blank, caused by cutting heat deformation, clamping force, etc.

For the processing of such mechanical parts, Kunshan Baichuan Precision Components Co., Ltd., which has 25 years of experience, has obtained a partial solution.

Solution to product deformation:

  1. Improve tool structure
  2. Reduce the teeth of the milling cutter and improve the quality of the cutting edge.
  3. Because of the large plasticity of the aluminum alloy material, the cutting deformation is large during the processing, and a large chip space is required, so it has the characteristics of large groove bottom radius and small number of milling cutter teeth.
  4. Finely grind the teeth

Before applying a new knife, the front and back sides must be lightly ground with a fine grinding stone to eliminate the grinding tooth marks and sawtooth marks remaining on the blade, which can not only reduce the cutting heat, but also reduce the cutting deformation, and strictly control the tool wear standard.

The higher the cutting temperature, the greater the surface roughness of the workpiece and the greater the deformation of the workpiece. Therefore, in addition to the selection of tool materials with good wear resistance, the wear of the tool should be strictly controlled, otherwise deposits are likely to occur, and the temperature of the product during the cutting process should not be too high to prevent deformation.

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