Basic types of cross rolling include:
1. Gear cross rolling: The toothed roller 1 and the round blank 2 are in opposite rolling motion to achieve local continuous forming and rolling into gears. The deformation of this kind of cross rolling mainly occurs in the radial direction, and the axial deformation is very small. There are both hot rolling and cold rolling.
There are two ways to cross-roll gears: one is single-piece rolling and the other is multi-piece rolling.
2. Spiral cross rolling: Thread cross rolling is also called thread rolling. Two threaded rollers rotate in the same direction, driving the round blank to rotate. One of the rollers feeds radially to roll the blank into threads.
3. Cross-wedge rolling: Two rollers with wedge-shaped dies rotate in the same direction, driving the circular blank to rotate. The blank is rolled into various shapes of stepped shafts under the action of the wedge-shaped pass.
Link to this article：Forging Technology: Basic Types of Cross Rolling
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