Measures to eliminate machining faults of end mill

Fault
Occurrence situation
Measures
The machined
surface is not good
The surface is smooth, but there
are concaves and convexes
Reduce feed.

If it is double-flute, change it to 4-flute.
Chips are short and thin,
but there are sticky chips.
Increase cutting speed.

Use wet or compressed air (increase flow)

Make miniature rounding passivation treatment.

Change from conventional milling to climb milling.

Increase feed or cutting allowance.
There are cross cutting marks
Make miniature rounding passivation treatment.

Use non-water soluble cutting fluid.

Change from climb milling to conventional milling
There are excess cutting
marks left.
Reduce cutting allowance.

Increase cutting speed.

Reduce feed.
Profile precision
is not good.
The size of finish machining
is smaller.
Change from conventional milling to climb milling.

Reduce cutting allowance.

Replace chuck or spring collet.

Reduce overhanging volume of end mill.

Increase cutting speed
Square trowel is not good.
Reduce cutting allowance.

Replace chuck or spring collet

Reduce overhanging volume of end mill.

Increase cutting speed.

Change from double-flute to 4-flute.

Reduce feed.

Check wear, replace tools.
Vibrating
 
Increase feed (reduce if more than 0.04mm/tooth)

Try changing cutting speed.

Replace chuck or spring collet.

Reduce overhanging volume of end mill.

Rough milling uses double-flute, finish milling uses 4-flute.

Change from climb milling to conventional milling.

Measures to eliminate machining faults of end mill

General shank standard
 
  DIN 6535-HA

2 3 4 5
6
8
10
12 14
16 18
25
32
L7
+2
0
28
36
40
45
48
50
56
60

DIN 6535-HB

d1 h6

b1 +0.05
0

e1 0
hhhh-1
h1 h11

L1 +2
fg0

L2 +1
gg0
6
4.2
18.0
5.1
36.0
8
5.5
6.9
10
7.0
20.0
8.5
40.0
12
8.0
22.5
10.4
45.0
14
12.7
16
10.0
24.0
14.2
48.0
18
16.2
20
11.0
25.0
18.2
50.0
25
12.0
32.0
23.0
56.0
17.0
32
14.0
36.0
30.0
60.0
19.0

 

DIN 6535-HE

d1
(b)
(b1)
(h1)
(h2)
L1
L4
L5
R
6.0
4.3
..
5.1
..
36.0
25.0
18.0
1.2
8.0
5.5
..
6.9
..
10.0
7.1
..
8.5
..
40.0
28.0
20.0
12.0
8.2
..
10.4
..
45.0
33.0
22.5
14.0
9.1
..
12.7
..
16.0
10.1
..
14.2
..
48.0
36.0
24.0
1.6
18.0
10.8
..
16.2
..
20.0
11.4
..
18.2
..
50.0
38.0
25.0
25.0
13.6
9.3
23.0
24.1
56.0
44.0
32.0
32.0
15.5
9.9
30.0
31.2
60.0
48.0
35.0