Kühlschmiermittels

Kühlschmiermittel, often translated as coolants or cutting fluids, are substances used in machining and metalworking processes to cool and lubricate the cutting tool and workpiece. They play a crucial role in extending tool life, improving surface finish, and facilitating chip removal. The primary functions of these fluids are to dissipate the heat generated by friction between the tool and the material being cut, and to reduce the friction itself.

There are several types of Kühlschmiermittel, categorized broadly into oil-based, water-based, and synthetic formulations. Oil-based coolants offer excellent lubrication but can be less effective at cooling and may pose fire hazards. Water-based coolants, such as soluble oils and semi-synthetics, provide superior cooling but generally offer less lubrication. Synthetic coolants are typically water-based solutions containing no mineral oil and offer good cooling and cleanliness but can sometimes lack the lubricity of oil-based types. Additives are often incorporated into these formulations to enhance properties like corrosion protection, anti-foaming, and bacterial growth inhibition.

Proper selection and maintenance of Kühlschmiermittel are essential for efficient and safe manufacturing operations. Factors influencing the choice include the type of material being machined, the cutting speed and depth, and the desired surface finish. Regular monitoring of concentration, pH, and microbial contamination is necessary to ensure optimal performance and prevent issues like tool wear, workpiece damage, and health hazards.