Aluminum alloys are highly sensitive materials, and both 6000 series and 7000 series aluminum alloys can experience issues when using cutting fluids during machining. One of the most common problems is discoloration, often appearing as blackening on the surface of the workpiece.
Earlier this week, our Meike Cutting Fluid Network discussed how to address blackening in magnesium alloy machining with cutting fluids. Today, we're focusing on the more frequent challenges encountered when working with everyday aluminum alloys, particularly the issue of black spots and fading that occur when using semi-synthetic cutting fluids.
Aluminum alloys are inherently reactive, which makes them prone to various chemical interactions during machining. The main cause of blackening is often related to the metal's own properties. That’s why it's important to use specialized cutting fluids designed for aluminum alloys, which typically include anti-oxidation additives to reduce such issues.
However, even with semi-synthetic cutting fluids, black spots and fading can still occur. This is usually due to insufficient corrosion protection. When the cutting fluid isn’t properly formulated for aluminum, it can lead to surface corrosion, resulting in unsightly blemishes. To resolve this, the formulation of the cutting fluid can be adjusted by adding corrosion inhibitors. This is a common problem, and in most cases, black spots on aluminum parts are a direct result of corrosion.
If you’re encountering similar issues in your aluminum machining processes, don’t hesitate to reach out to Dongguan Meike Cutting Fluid for expert advice and tailored solutions.
Recommended products: [Grinding Fluid] [Cutting Oil]
Note: This article was originally published on the Meike Cutting Fluid Network at http://...
Source: http://news.chinawj.com.cn
Guangdong Kinen Sanitary Ware Industrial Co.,Ltd. , https://www.kinengroup.com