Cutting tool design for ball nut thread machining

Abstract

This article shows different machining methods of the ball nut thread. A disadvantage of machining high pitch ball nuts by grinding process is to produce a modified tool profile to avoid collision between the tool holder and workpiece. However, by using profiled lathe inserts, it is possible to produce thread profile of the ball nut. The applicability of method is verified by tooling and experimental machining based on conceptual designs, the results are described at the end of article.