How to choose cutting fluid for CNC machining center?
Cutting fluid is an indispensable thing in machining center processing, it can reduce the temperature of the tool, increase lubrication, etc., make the tool less prone to wear and extend the service life of the tool during processing. So how to choose cutting fluid for computer gong CNC machining center?
In order to adapt to different processing occasions and process requirements, the types of metal cutting fluids are also diverse, which are mainly divided into two categories according to chemical composition and state, namely, water-based cutting fluid and oil-based cutting fluid.
1. Water-based cutting fluid refers to the cutting fluid that needs to be diluted with water in advance. Anti-rust emulsions, anti-rust lubricant emulsions, extreme pressure emulsions and microemulsions all belong to this category. The role of water-based cutting fluid is usually cooling and cleaning, and the lubrication effect is not obvious.
2. Oil-based cutting fluid refers to the cutting fluid that does not need to be diluted with water when used. Pure mineral oil, fatty oil, oily additives, mineral oil, inactive extreme pressure cutting oil and active extreme pressure cutting oil all belong to this type. Contrary to water-based cutting fluids, oil-based cutting fluids have obvious lubrication effects, but have poor cooling and cleaning capabilities.
How to choose cutting fluid?
Choose according to the workpiece material
When cutting cast iron and bronze, cutting fluid is generally not used. Kerosene is used for finishing.
When cutting aluminum, use kerosene
When cutting non-ferrous metals, sulfur-containing cutting fluids should not be used.
When cutting magnesium alloy, use mineral oil.
When cutting general steel, use emulsion.
When cutting difficult-to-cut materials, extreme pressure cutting fluid should be used.
Choose according to process requirements and cutting characteristics
When roughing, the cutting fluid with good cooling effect should be selected.
When finishing, you should choose a cutting fluid with good lubricating effect.
When machining holes, use a high-concentration emulsion or extreme pressure cutting fluid.
When machining deep holes, a cutting fluid with a lower concentration of extreme pressure additives should be selected.
When grinding, the cutting fluid with good cleaning effect should be selected.
