Halnn PCBN hard turning inserts machining hardened steel
Category：News
PublishedDate：2018-03-27
Part 1 PCBN Grade for Hard turning hardened steel
|
CBN Grade |
Depth of Cut |
Recommend Cutting Condition |
|
BN-S20 |
1-10mm |
Interrupt Cut-Continuous |
|
BN-H20 |
≤ 1mm |
Semi-Interrupt Cutting |
|
BN-S200 |
≤ 1mm |
Continuous Cutting |
|
BN-H11 |
≤ 1mm |
Continuous Cutting |
|
BN-H10 C25 |
≤ 0.5mm |
Continuous-Light interrupt |
|
BN-H10 |
≤ 0.5mm |
Continuous-Light interrupt Cutting |
|
BN-H21 |
≤ 0.5mm |
Heavy Interrupt Cutting |
|
BN-H21 C25 |
≤ 0.5mm |
Heavy Interrupt Cutting |
Part 2 Application Case with Hard Turning Insert
1.
Continuous Turning Gears
|
Hard Turning Gears with BN-H10 PCBN Grade |
 |
Component: Gears
Materials: 20CrMnTi
Hardness: HRC58-62
Machining Condition: Continuous,Dry Cutting
Insert Grade: BN-H10 CNGA120408
Roughness requirements: Ra0.8 |
|
CBN Grade |
PCBN Insert |
Halnn BN-H10 |
Halnn BN-H10 C25
(Coating PCBN) |
|
Cutting Speed Vc(m/min) |
180 |
180 |
180 |
|
Feed Rates fr(mm/r) |
0.1 |
0.1 |
0.1 |
|
Cutting Depth ap(mm) |
0.2 |
0.2 |
0.2 |
|
Machining Qty (piece/insert) |
550 |
800 |
1200 |
|
Tool Life |
--- |
Improved 45% |
Improved 118% |
|
Semi-Interrupt turning Gears with BN-H20 PCBN Grade |
 |
Component: Gears
Materials: 20CrMnTi
Hardness: HRC58-62
Machining Condition: Semi-Interrupt Turning,Dry Cutting
Selected Insert: BN-H20 WNGA080408 |
|
Insert Materials |
Other PCBN |
Halnn BN-H20 |
|
Cutting Speed Vc(m/min) |
120 |
120 |
|
Feed Rates fr (mm/r) |
0.1 |
0.1 |
|
Cutting Depth ap(mm) |
0.25 |
0.25 |
|
Machining Qty (pcs/insert) |
650 |
700 |
|
Tool Cost/piece |
0.2 |
0.1 |
|
Interrupt turning Gears with BN-H21 PCBN Insert |
 |
Component: Gears
Materials: 20CrMnTi
Hardness: HRC58-62
Machining Condition: Heavy Interrupt Turning, Dry Cutting
Selected Insert: BN-H21 WNGA080408
Roughness Requirements: Ra0.8 |
|
Insert Materials |
Some Brand PCBN |
Halnn BN-H21 |
Halnn BN-H21 C25 |
|
Cutting Speed Vc(m/min) |
158 |
158 |
158 |
|
Feed Rate fr(mm/r) |
0.1 |
0.1 |
0.1 |
|
Cutting Depth ap(mm) |
0.3 |
0.3 |
0.3 |
|
Machining Qty (piece/insert) |
350 |
600 |
900 |
|
Tool Life |
--- |
Improved 71% |
Improved 175% |