Failure mode analysis of PVD coated hobs

2020-07-03 2832

1. Factors affecting tool life Tool material, hardness PVD coating material and quality Workpiece material hardness and metallurgical structure Cutting speed and feed Cutting fluid type and correct use Scrambling method Hobbing tool clamping Maximum Wear Criteria 2. Wear Criteria Maximum allowable tool wear should be established and the tool should be resharpened promptly after it reaches the standard. Recommended values are as follows (for reference only): Hard co...

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