Flute cutting – the challenge

Flute grinding is a most demanding and time-consuming operation, owing to the high stock removal– a cutting depth of 7-8 mm is not unusual. The large contact area makes it difficult for the coolant to reach the grinding zone; thus, excessive heat is generated which could cause damage to the work piece surface and/or reduce the particle strength of the heat-sensitive diamond grits.In order to remain competitive, today’s leading tool manufacturers must achieve high productivity and repeatability, and produce high-quality i.e. excellent finishing products at the lowest possible cost.

Flute grinding is one of the most costly manufacturing steps for mill, drill and cutter manufacturers, hence the need for constant improvement.

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The Toolgal RM:

In the engineering of its RM series 5, 6, 7 for flute grinding wheels have proven highly successful in dealing with these requirements. Furthermore, the wheels maintain their profile shape throughout the entire grinding process, leaving a very good surface finish.

The RM series—with its improved bond system and new types of abrasives—presents a wide range of benefits:

  • High material removal rates
  • Low wheel wear
  • Low cutting forces
  • Low machine power consumption
  • Low frictional heat in the contact zone
  • Excellent surface finish and edge quality

As a result of the above engineering efforts, the Toolgal RM is a highly cost-effective product. It can be supplied off-the-shelf as per standard program, or custom-made as per specific customer requirements (see parameter drawing).

See our stock program below for details.
RM6/7 Recommended for deep and long production runs(QW 6.7)
RM501/515 Recommended for standard production run (QW 4)

Recommended cutting speed
Qw' Table

1A1

D Ø T X X Diamond CBN
50 6,8,10 6 10 RM5 RM6/7 RM9
75 6,8,10,12,15 6 10 RM5 RM6/7 RM9
100 6,8,10,12,15 6 10 RM5 RM6/7 RM9
125 6,8,10,12,15 6 10 RM5 RM6/7 RM9
150 6,8,10,12,15 6 10 RM5 RM6/7 RM9
175 6,8,10,12,15 6 10 RM5 RM6/7 RM9

 

Other dimensions available on request – Please indicate required T and X
“H” central holes avilable: Ø20mm Ø31.75mm H6

3A1 14A1

D U X=6mm X=10mm Diamond CBN
50 2,4,5 6 RM5 RM9
50 6,8,10 6 10 RM5 RM6/7 RM9
75 2,3,4,5 6 RM5 RM9
75 6,8,10,12,15 6 10 RM5 RM6/7 RM9
100 2,3,4,5 6 RM5 RM9
100 6,8,10,12,15 6 10 RM5 RM6/7 RM9
125 2,3,4,5 6 RM5 RM9
125 6,8,10,12,15 6 10 RM5 RM6/7 RM9
150 2,3,4,5 6 RM5 RM9
150 6,8,10,12,15 6 10 RM5 RM6/7 RM9
175 6,8,10,12,15 6 10 RM5 RM6/7 RM9

Other dimensions available on request – Please indicate required U and X
“H” central holes avilable: Ø20mm Ø31.75mm H6
Other central holes avilable on request

3A1
14A1

1V1

D Ø T X X Diamond CBN
50 6,8,10 6 10 RM5 RM6/7 RM9
75 6,8,10,12,15 6 10 RM5 RM6/7 RM9
100 6,8,10,12,15 6 10 RM5 RM6/7 RM9
125 6,8,10,12,15 6 10 RM5 RM6/7 RM9
150 6,8,10,12,15 6 10 RM5 RM6/7 RM9
Special 175 6,8,10,12,15 6 10 RM5 RM6/7 RM9
Special 200 6,8,10,12,15 6 10 RM5 RM6/7 RM9

Other dimensions available on request – Please indicate required T and X
“H” central holes avilable: Ø20mm Ø31.75mm H6

3V1 14V1

D U X=6mm X=10mm Diamond CBN
50 2,4,5 6 RM5 RM9
50 6,8,10 6 10 RM5 RM6/7 RM9
75 2,3,4,5 6 RM5 RM9
75 6,8,10,12,15 6 10 RM5 RM6/7 RM9
100 2,3,4,5 6 RM5 RM9
100 6,8,10,12,15 6 10 RM5 RM6/7 RM9
125 2,3,4,5 6 RM5 RM9
125 6,8,10,12,15 6 10 RM5 RM6/7 RM9
150 2,3,4,5 6 RM5 RM9
150 6,8,10,12,15 6 10 RM5 RM6/7 RM9
175 6,8,10,12,15 6 10 RM5 RM6/7 RM9

Other dimensions available on request – Please indicate required U and X
“H” central holes avilable: Ø20mm Ø31.75mm H6
Other central holes avilable on request

3V1
14V1
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