Tool and process development for chambering bores with non-circular contour in highly stressed workpieces
by Julian Frederic Gerken; Robert Schmidt; Dirk Biermann; Moritz Fuß
International Journal of Mechatronics and Manufacturing Systems (IJMMS), Vol. 14, No. 3/4, 2021

Abstract: A novel chamber boring system allows for contouring of boreholes in axial and radial direction to produce special profiles required from oil industry. The machined contour, produced by this system, consists of six convexities in radial direction. In this paper, the development of the cutting tool and its kinematics are described. Due to the fully mechanical drive of the system, different tool designs cause a distortion of the resulting contour. In addition, the cutting parameters also affect the machined profile. The resulting contour deviations were analysed and measured by a 3D-coordinate-measuringsystem. To ensure transferability to industrial applications, a process strategy with re-cutting after a tool change was developed and analysed using an optical 3D measurement system. With this strategy and the improved tool kinematics, it is possible to machine a workpiece with a length of l = 2500 mm. Future research projects investigate the possibility to substitute the mechanical drive with an electrical drive.

Online publication date: Tue, 01-Mar-2022

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