NO.

Problems

Reason

Solution

1

Machining chip is too small

wrong cutting data

Adjust Speed and Feed

Wrong chip breaking geometry, ellipse angle too small or too deep

Change cuter slot types

Workpiece material instability

Adjust Speed and Feed

Poor initial cutting (workpiece not centered)

Position hole center

2

Machining chip is too big

wrong cutting data

Adjust Speed and Feed

Wrong chip breaking geometry, ellipse angle too small or too deep

Change cuter slot types

3

Machining chips are not same

Workpiece materials are not same

Change cuter slot types

Wrong feeding way ( hydraulic feeding )

Check with manufacturer

Cooling is not good

Make cooling bigger

Strong vibration caused by insufficient rigidity of the workpiece and tool The material of the workpiece is unstable

Check with manufacturer

4

Fibrous iron filings

Workpiece materials are not same

Change cuter slot types

Wrong feeding way ( hydraulic feeding )

Check with manufacturer

Insufficient coolant

Clean coolant

Chemical affinity reaction between workpiece and carbide tool

change

chip edge chipping

change

feed too low

Improve feeding

5

Chipping of cemented carbide inserts

Cutter is not fast

Change

Coolant doesnt work well

Check flow and pressure

Insufficient coolant

Check coolant

Guide bushing tolerance is too small

Change

Drilling bar and spindle are eccentric

Change to eccentric

Wrong cutter parameter

Change

Workpiece materials are not stable

Set suitable speed and feeding