jäähdytysöljy
Jäähdytysöljy, known in English as cutting fluid or coolant, is a liquid used during machining and metalworking operations. Its primary functions are to cool the workpiece and the cutting tool, lubricate the cutting zone, and flush away chips and debris. By reducing friction and heat, jäähdytysöljy extends the life of tools and improves the surface finish of the machined part. It also helps to prevent thermal expansion of the workpiece, which can lead to dimensional inaccuracies.
There are several types of jäähdytysöljy, broadly categorized as oil-based, water-based, and synthetic. Oil-based coolants offer