Tag Archives: Drilling Problems

Drilling problems and Solutions

Question No. Problem description
1 Aperture Ultra Difference
2 Horn Hole
3 Hole Roundness Is Not Good
4 Poor Surface Quality of Holes
5 Burr At The Exit of The Hole
6 Chipping
7 Back of Drill Bit Blocked Chips
8 Bit Breaking
9 Blocked Chips

 

1 2 3 4 5 6 7 8 9 Solutions
● ● ● ● ● ● Reduce tool nose run out
● ● increase Inverted cone
● ● ● ● ● ● ● Reducing blade height difference
● ● ● ● ● Improving tool symmetry
● ● ● Improving cutting edge type
● ● Improving blade treatment
● ● Increase point angle
● ● ● ● ● ● Tool length reduction
● Select and use coating
● ● ● Increasing internal cooling pressure
● ● ● ● Cutting speed reduction
Improving cutting speed
● ● ● ● ● ● Reduce feed
● Raise feed

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Solutions Summary of Common Drilling Problems (Relationship with the Good or Bad Grinding Drill Bit)

In the actual production, PURROS Machinery has collected mass customers’ problems about grinding drill bits by hand (manual grinding drill bits), now, list the summary of the problems and how to solve as bellow for your reference and study. In the actual production, PURROS Machinery has collected mass customers’ problems about grinding drill bits by hand (manual grinding drill bits), now, list the summary of the problems and how to solve as bellow for your reference and study.

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