What are the main causes of hob breaking?
The workpiece material hardness is high, the tool is not installed properly
In my opinion, there are many reasons for the broken teeth of the hob. In addition to the above analysis, it is also related to the regrinding of the tool, such as grinding the front face of the knife and grinding cracks
(1) helical rolling wheel indexing hanging off, (Y38-1, Y3150) indexing hanging round off, the table does not turn, turn the cutter knife, broken teeth. The differential gear shedding (Y3150E, Y3180H) differential gear off the bench or turn. (2) head screw clearance large, in the processing process, the knife suddenly sank (inverse milling often), caused by the amount of feed is too large, not only from the sometimes broken tooth hob groove crack, the entire knife scrap (3) processing the material hardness is too high or too soft, also to the broken tooth cutter
