Fundamentals of Quality Assurance of the Grooves on Side Rotational Surfaces Machined by Vortex Method

A mathematical model is developed for the circular feed that is functionally related to the longitudinal feed when sealing grooves are formed on the side rotational surfaces using vortex machining. The basic design parameters of the tooling elements that ensure the functional relation between the circular and longitudinal feeds are determined. The mechanisms of material removal inherent to the method are determined. When the workpiece is machined using only the vertical feed, the material is removed continuously; when the workpiece is moved linearly, in coordination with its turn, the material is removed intermittently and continuously at each turn of the tool. Mathematical models of kinematic components of the irregularities that build up on the outer, inner and bottom surfaces of the machined groove are developed. Their values are determined for different values of the longitudinal feed. The obtained mathematical models are analyzed, and the factors impacting the surface quality are determined. Ways to improve quality of the groove surface are described.

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