What causes hole enlargement during d...
Hole enlargement occurs due to tool runout or chattering during machining. In addition, runout at the time of tool installation affects both hole diameter a... 詳細表示
This is a drill with a flat tip, and the ADF and ADFO series are applicable. A flat tip shape is one in which the point angle of the drill is 180 degrees an... 詳細表示
Lip height is the difference in the height of the cutting edge when the drill is rotated. If the lip height increases, it will be cut only with one cutting ... 詳細表示
Why does a drilled hole become polygo...
It is likely caused by drill runout during machining. Possible Causes ① Runout when mounting the drill Countermeasure: Keep mounting runout within 20 μm ... 詳細表示
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