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How to avoid deformation in CNC aluminum machining

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How to avoid deformation in CNC aluminum machining

February 24, 2022

Aluminum is an essential industrial material, but it has a major undoing. The alloys contain relatively low hardness and their thermal expansion are high, can deform when being machined into a thin part. However, several steps can be taken to avoid the deformation of the material beforehand.
Symmetrical Machining
It’s essential to avoid extreme concentration of heat but rather to create a dissipation of heat to reduce the rate of thermal deformation.
Stratified Multiple Machining
If you have several cavities on some Aluminum alloy plate, you can easily twist one cavity wall because of the force distribution. To avoid such an occurrence, you should process all cavities in the same period.
Get an Appropriate Cutting Parameter
The significant influence on the cutting parameter is the amount of cutting back depth. To maintain efficiency and reduce the number of cutting. A CNC milling can settle the problem, by increasing the speed of the machine and reducing the cutting force.
Drilling and Milling
When the milling cutter is applied to cavity and parts, the cutting is sufficient. The leads to cutting heat, expansion, and deformation. The best way of avoiding this problem is pre-drilling with a bigger tool than the milling cutter and then put the milling cutter and mill.
5 Axis CNC Machining
On the 5-axis machining, the CNC moves while cutting in five angles of the axes simultaneously. This machining process is fast, reliable on designing complex parts, as work is approached in multiple directions.
The 5-axis machining has been adopted widely because of the following:
The set-up is a single one, and this reduces the lead time and better the efficiency
It allows better geometry due to its ability to avoid collision with the tool holder tilting the table or the cutting tool.
Can use shorter tools that are more rigid, some with high spindle speeds rate which is achieved by reducing the load cutting tool.
Pieces don’t pass through different workstation hence errors are reduced, accuracy maintained, and quality is guaranteed.
As we conclude, you are now aware of the various CNC machined aluminum process (milling, drilling, and turning) that unfinished piece of aluminum is taken through until it becomes a complete product. It’s an arduous process that requires experience, accuracy, and powerful machinery. Moreover, these are because of the different aluminum alloy used.
The benefits of aluminum are obvious: fantastic cutting process, the best quality and the demand for a machined aluminum product is on the rise. Industries are snowballing with many specialists to meet your needs, remember to do your research and seek samples to be sure on the quality of the CNC aluminum.

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