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Catalogue Bore machining Chapter Roughing - komet group

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Optimum cutting depth range<br />

Guideline values for medium strength steels<br />

Feed fz (mm/tooth)<br />

Feed fz (mm/tooth)<br />

0,40<br />

0,35<br />

0,30<br />

0,25<br />

0,20<br />

0,15<br />

0,10<br />

0,05<br />

0,40<br />

0,35<br />

0,30<br />

0,25<br />

0,20<br />

0,15<br />

0,10<br />

0,05<br />

a p<br />

WOEX05<br />

W29 24<br />

W29 18<br />

W29 10<br />

1 2 3 4 5 6 7 8 9 10 11<br />

Cutting depth ap (mm)<br />

SOEX07<br />

SOEX06<br />

a p<br />

optimum range<br />

optimum range<br />

WOEX08<br />

W29 42<br />

WOEX06<br />

W29 34<br />

SOEX09<br />

W29..<br />

a p<br />

SOEX12<br />

WOEX10<br />

W29 50<br />

a p = 2,5 mm a p = 2,5 mm a p = 2,5 mm a p = 2,5 mm a p = 2,5 mm<br />

a p = 0,35 mm a p = 0,35 mm a p = 0,35 mm a p = 0,35 mm a p = 0,35 mm<br />

a p<br />

WOEX12<br />

W29 58<br />

1 2 3 4 5 6 7 8 9 10 11<br />

Cutting depth ap (mm)<br />

Chip formation from various insert geometries<br />

Tool: TwinKom® G01 twin cutter x 40 mm<br />

Material: 42CrMo4V 1100 N/mm²<br />

Cutting data: v c = 140 m/min f = 0,35 mm/rev<br />

Geometry 01 Geometry 02 Geometry 03 Geometry 13 Geometry 15 / 16<br />

a p<br />

Geometry 15 and 16<br />

W29 34160..<br />

0,40<br />

Feed fz (mm/tooth)<br />

Feed fz (mm/tooth)<br />

0,35<br />

0,30<br />

0,25<br />

0,20<br />

0,15<br />

0,10<br />

0,05<br />

0,20<br />

0,15<br />

0,10<br />

0,05<br />

R a<br />

3,5<br />

3,0<br />

2,5<br />

2,0<br />

1,5<br />

1,0<br />

0,5<br />

KOMET TwinKom® G01<br />

W29 24160..<br />

W29 18160..<br />

0,5 1 1,5 2 2,5 3<br />

Cutting depth ap (mm)<br />

f n<br />

Technical Informations<br />

R a<br />

2<br />

W29 42150..<br />

W29 34150..<br />

W29 24150..<br />

W29 18150..<br />

W29 10150..<br />

W30 14120.04<br />

0,5 1 1,5 2 2,5 3<br />

Cutting depth ap (mm)<br />

Comparison of surface quality results<br />

for "Wiper" R04 for � = 90°<br />

(in X40Cr13 / 1.4034)<br />

Geometry 15<br />

Average surface quality<br />

Ra (µm)<br />

optimum range<br />

2×f n<br />

0,1 0,2 0,3<br />

W30 26120.05<br />

W30 04120.02<br />

Geometry 16 (Wiper)<br />

Feed f (mm)<br />

171<br />

1<br />

2

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