Semi-synthetic cutting fluid processing aluminum parts appear dark spots

November 26, 2019

Semi-synthetic cutting fluid processing aluminum parts appear dark spots

Aluminum alloys are very sensitive metals. Both aluminum alloys of the 6000 series and aluminum alloys of the 7000 series are prone to problems during the processing of cutting fluids. The most common problem is blackening.

Light blue aluminum anodized parts

Let's analyze the more common problems that arise in the processing of our daily aluminum alloys. The problem of black spots and fading of workpieces in the processing of aluminum parts using semi-synthetic cutting fluids should be solved.
Aluminum alloys are very sensitive metals. Both aluminum alloys of the 6000 series and aluminum alloys of the 7000 series are prone to problems during the processing of cutting fluids. The most common problem is blackening. Why is it black? The main reason is due to the characteristics of the aluminum alloy itself. Therefore, when we choose the cutting fluid, we usually choose some aluminum alloy special cutting fluid, because this type of cutting fluid will have anti-oxidation performance. Do it better.

In the above-mentioned semi-synthetic cutting fluid, there is a problem of black spots and fading of the workpiece. The main problem is that the aluminum parts are corroded by the cutting fluid, so black spots and fading occur. problem. The solution can be adjusted on the formulation of semi-synthetic cutting fluid, adding corrosion inhibitor. This is a typical case of insufficient corrosion protection of aluminum parts. Generally, black spots are processed in aluminum parts, most cases The bottom is due to the corrosion of the aluminum parts.

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