High precision spiral oil groove machining, CNC turning and milling

Spiral oil groove machining is a process in which the inner and outer diameters of a circular oil groove are machined simultaneously. The size of the diameter of the circular oil groove is determined by the diameter of the inserts and the toolholder. The maximum outer and inner diameters are measured from the edge of the cutting edge. The lower surface is protected. Both methods require specialized equipment. The etching method is preferred for precise, complex, and small-diameter grooves.

Spiral oil groove machining is a process in which the groove is cut in a single piece. It is also called as "spiral-cross" or "cross-spiral grooving". However, the spiral-cross pattern is more common. Besides, these patterns can be used in both wet and dry applications. Spiral oil groove machining is one of the most popular processes for spherical-spiral applications. The spiral-shaped design enables the flow of oil to be controlled without a lot of friction. Spiral-spiral grooving patterns are primarily used in sump-type applications where there is limited amount of oil. 

The spiral oil groove is used for wet applications where the oil flow is required to be controlled and predictable. The sunburst oil groove is suited for applications with sufficient amounts of liquid. It facilitates high-flow of oils and minimizes drag. This pattern is best for sump-type applications with limited amount of water. A slant-type oil groove gives a controlled flow of the oil but it will have high viscosity.