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The wear and destruction appearances of hobs are researched. The reasons of the wear and destruction of hobare analyzed. And the influence of the change of the bobbing force and the bobbing temperature on the wear and destruction of hob in gear bobbing is also analyzed. In gear bobbing, the main wear mechanisms are adhesion and ploughingwhen cutting the 20CrMnTi gear using W18Cr4V high-speed steel hob.
The wear and destruction appearances of hobs are researched. And the influence of the change of the bobbing force and the bobbing temperature on the wear and destruction of hobs in gear bobbing is also analyzed. In gear bobbing, the main wear mechanisms are adhesion and plowing the cutting the the 20CrMnTi gear using W18Cr4V high-speed steel hob.