Каталог Sumitomo пластины с кубическим нитридом бора Sumiboron - страница 13

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BNC2010/BNC2020Coated SUMIBORON for Hardened Steel Machining

  • Performance
  • BNC2010
  • BNC2020

After 8km 7 After 5km Conventional Coated CBN

6 BNC2020

5 After 3km Conventional

4 Notch wear

  • Coated CBN

3 8km

  • After
  • BNC2010

2 After 2.5km ●■ Competitor's Coated CBN 1

0 2 4 6 8 0 2.5 5.0

Cutting Distance（km） Minimal notch wear Tool Life（km）

Work Material：SCM415 58-62HRC (Continuous) Work Material：SCM415-5V 58-62HRC (Interrupted)

Insert：4NC-DNGA150408 Edge Treatment：S01225 Insert：4NC-CNGA120412 Edge Treatment：S01225

Cutting Conditions：=160m/min=0.08mm/rev= 0.1mmWetCutting Conditions：=130m/min= 0.1mm/rev= 0.6mmDry
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  • Application Examples

BNC2010 BNC2020

【Continuous External Turning of Main Shaft】（58 to 60HRC） 【Carburized Layer Removal for Sun Gear】（58 to 60HRC）

BNC2010 provides excellent wear resistance and achieves BNC2020 achieves long tool life in high load cutting. excellent surface roughness. 100 300 tool life 2.3x tool life 1.5x 200 50 100

0 0

Surface Roughness Ra=0.6μm BNC2010 Conventional BNC2020 Conventional

Coated CBN Coated CBN

Insert：4NC-DNGA150408（BNC2010） Insert：4NC-CNGA120408（BNC2020）

Cutting Conditions：= 200m/min= 0.10mm/rev= 0.35mmDryCutting Conditions：=100m/min= 0.15mm/rev= 0.5mmWet
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【CVJ Outer Race Facing】（58 to 60HRC） 【Interrupted Machining of CVJ Cage Window】（58 to 60HRC） BNC2010 with a WH type wiper insert maintains excellent surface Strong edged HS type BNC2020 exhibits stability in interrupted roughness for a long time. cutting.

700 300 tool life 1.8x tool life 1.5x 500 200

300 100

0 0

Surface Roughness Rz=1.6μmBNC2010ConventionalBNC2020Conventional
WHTypeCoated CBNHSTypeCoated CBN

（Wiper Insert） （Strong edge type）

Insert：2NC-CNGA120412WH（BNC2010） Insert：3NC-TNGA160420HS（BNC2020）

Cutting Conditions： = 150m/min = 0.2mm/rev = 0.2mm Dry Cutting Conditions： = 120m/min = 0.10mm/rev = 0.15mm Dry