Which CNC coolant should I choose when machining aluminum alloys?

Which CNC coolant should I choose when machining aluminum alloys?
Cooling is essential during CNC machining. Coolant serves a variety of purposes to keep machines running efficiently and accurately. Using the right type of CNC coolant during milling, grinding or turning can prevent overheating and extend tool life.

Milling technology is one of the most commonly used CNC processes in the industry. It is ideal for producing custom designed parts on a range of materials. However, companies specializing in machining CNC aluminum alloy parts must use coolants to limit and control the overheating of the milling cutters.

What is the importance of CNC machining coolants and which ones should you choose? Let's discuss.

The role of coolant in CNC machining of aluminum alloys
During the cutting process, high temperature is very harmful to the workpiece, chips and tools. Thermal energy can permanently damage the cutter or cause physical injury to the technician. This is why CNC coolant is essential in the machining process.

·Lubrication
Coolant and lubricant are sometimes used interchangeably. However, they are not the same. Coolant is used during milling to reduce friction between the tool and chip removal.
Aluminum as a material can be very sticky and tend to tend to knives. Coolant can make things slippery and make chips stick to them.

·For cooling
Heat build-up is dangerous to tool and machine operators. CNC machining coolants can be used to reduce workpiece and tool temperatures. Heavy cutting operations take a long time and generate heat faster.

· Reducing Corrosion
CNC coolants are essential for protecting tools and manufactured parts from corrosion. By providing the necessary lubrication, the machining process is seamless with minimal surface damage.


Types of Coolants Used When CNC Machining Aluminum Alloys
The choice of CNC coolant is entirely based on the properties of the product and the materials used. Certain types of coolants work better than others and also serve different purposes. You should choose a coolant based on whether you only need cooling, as a lubricant, chip removal, or all functions.
There are different types of coolants including liquids, gels and aerosols. Liquid coolants are the most common, with soluble oils, pure oils, synthetic and semi-synthetic fluids.

In CNC aluminum projects, you need a coolant with a high oil content, such as pure oil. This is the best option because aluminum tends to be very sticky; therefore, you need plenty of lubrication to keep the chips away from the cutter. Straight oils have base mineral oil or petroleum components that work in undiluted form. Lubricants such as vegetable oils, esters and fats are essential during CNC milling.

What to Consider When Using CNC Coolants
Concentration levels need to be carefully considered during the use of CNC coolants. A deficit or surplus can affect machines and increase manufacturing and maintenance costs.

·Low coolant concentration
If the quantity is low, the manufacturer will incur costs due to overheating and friction. In addition, milling cutters can reduce life and cause workpiece and machine corrosion. In addition, the tool may grow bacteria, reducing its performance level.

·High coolant concentration
On the other hand, if technicians use too much CNC coolant during the milling process, there will be a lot of concentrate waste. Excessive amounts can form residues on the machining tool, which can shorten the working life.
In addition, this large amount of coolant may contaminate workpieces and tools. For operators, they may cause skin irritation from chemicals.


Overview
CNC coolant is a must in the aluminum machining process. Choosing the right coolant and application method ensures that tools and aluminum custom parts are lubricated and protected from overheating during the milling process. During application, check the coolant concentration to prevent further damage to the machine.
These coolants can extend the life of your machine and make your company more cost-effective. If you need highly accurate and consistent CNC aluminum parts, please contact DONGGUAN YIFENG METAL.




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