What are the types of metalworking fluids?

Emulsified Oils:
Low cost with high cost-performance ratio. Excellent lubrication and wide applicability, suitable for most light to medium-duty machining, especially threading and grooving. However, prone to deterioration, oil slick formation, and difficult waste fluid treatment.

Full Synthetic Metal Working Fluid
Environmentally friendly with superior cooling, strong cleaning ability, and high stability. Resists decay, ideal for cast iron processing and grinding operations. However, offers relatively poorer lubrication.

Semi-Synthetic Metal Working Fluid
Good cooling performance, eco-friendly, and widely applicable. Suitable for high-speed advanced machine tools and most substrate machining. However, relatively higher initial and maintenance costs.

Cutting Oils:
Excellent lubrication, strong rust prevention, and high surface finish quality. Suitable for various metal materials including carbon steel, alloy steel, stainless steel, high-nickel steel, heat-resistant steel, and mold steel. Widely used in turning, milling, boring, high-speed tapping, drilling, reaming, broaching, gear hobbing, and other cutting processes. Disadvantages include high usage costs, significant oil mist generation, and poor cooling performance.