2013年11月29日星期五

Milling Prone to Problems and Possible Solutions - The Milling Surface Quality is Poor

1. Milling feed per revolution excessive

The axial adjustment cemented carbide tool or classification blades. check center high with a dial gauge.
Check the spindle run out and mounting surface cemented carbide tool.
Milling feed per revolution decreases to less than 70% of the width of the parallel forging.
If possible, use a wiper blades milling.

2. Milling vibration

3. BUE formed on milling inserts


Increase the milling cutting speed in order to improve the processing temperature.
Interrupt the supply of coolant.
Use the sharp milling cutting insert having a smooth rake face.
Use positive rake angle insert geometries.
Try to use higher cutting parameters cermet grades.

5 workpiece chipping

Reduce the milling feed rate per tooth.
Select a fine-toothed the superdense teeth cutting tools.
Repositioning of cemented carbide tool cemented carbide tool exit thinner chips.
Choose the most suitable main angle (45 degrees) and light cutting trough.
Select sharp cutting blades.
Monitoring flank wear in order to avoid excessive wear.

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