Workpiece breaking separation process, involving fixing workpiece, axially introducing spreading device, making break notch and parting spreading device

摘要

The separation process is for a workpiece (2) with one or more annular sectors (4). The workpiece is fixed, a spreading device (18) is introduced into at least one boring (6) through one of the annular sectors, a breaking notch is made in one of the borings, and the spreading device is opened out to break through at least one of the sectors.