As the automotive industry moves toward higher precision, lightweighting, and efficiency, the machining of key powertrain, hydraulic, and transmission components requires tools that are durable, efficient, and highly adaptable. Halnn offers a full range of professional cutting solutions using CBN, PCD, ceramic, and advanced carbide tools to support the high-performance demands of modern automotive manufacturing.
Engine System
Application case:
Engine block
 | Workpiece: Engine Block |
Material: FC250(HB170~210) |
Insert Type: BN-S300 SNEN090308 |
Cutting parameters: Vc=1700 m/min, Ap=0.3mm, Fz =0.12mm/r |
Processing method: dry cutting(Finish milling) |
Insert grade | Feed Rate | Tool Life/edge | Efficiency |
Halnn BN-S300 | 3670mm/min | 100 pieces | Improved 0.6 times |
Some brand CBN | 2200mm/min | 80 pieces | / |
Engine cylinder head
Finish milling cylinder head: BN-S300 grade Solid CBN insert is recommended, the productivity is significantly improved and the cutting performance is stable. It can advantageously replace international first-line brands such as Seco Tools.
Valve chamfering: customized according to customer needs, the advantages are stable cutting performance and high cost performance.
Turning valve seat ring: DCGW11T304 etc. is recommended for commonly types. The advantage is that high-speed cutting can be achieved and a higher finish can be obtained.
Boron cast iron cylinder liner
 | Workpiece: Finish turning Cylindrical |
Material: Boron cast iron |
Insert Type: BN-S300 SNMN120412 |
Cutting parameters: Vc=850 m/min, Ap=0.5mm, Fz =0.25mm/r |
Processing method: Wet cutting |
Insert grade | Cutting speed | Machining beat | Tool Life/edge |
Halnn BN-S300 | 850m/min | 23 s/piece | 120 pcs |
Ceramic inserts | 500m/min | 40 s/piece | 25 pcs |
Pistons
The material is aluminum alloy. Halnn PCD tools are recommended, which can be processed at high speed, with stable product quality, high precision and long life. And provides non-standard customization services.
Camshaft
Specification range
Diameter: 320-800mm
Width range: 15-60mm
Customized external milling cutterhead according to customer crankshaft.
Insert Type
Applications
The diameter of insert: 320mm Cutting speed: 120m/min Cutting depth: 5 mm
Feed rate:0.15mm/min Machine: Special machine
Crankshaft
Non-standard insert
Process Case
Comparision test | Current Tool | HALNN Tool |
Insert | European 134-C03 48 Pieces 122-C03 16 Pieces H3-03 16 Pieces
| 680-002X12012060A10 HPA035B 680-002N14009507R34 HPA035B |
Holder | MSDNN2020K12 | D280 Cutterhead |
Vc(m/min) | 140 | 140 |
N(min-1) | 159 | 159 |
f(mm/rev) | / | / |
F(mm/min) | 477 | 477 |
ap(mm) | 3-4 | 3-4 |
ae(mm) | / | / |
Type of cooling | Dry-type | Dry-type |
Tool wear | Normal wear/side milling insert broken edge(Must change insert by processing 300 workpieces) | Normal wear (Must change insert by procesing 300 workpieces) |
tool life/cutting edge | 300 psc/cutting edge | 300 pcs/ cutting edge |
Product name: Crankshaft
Processed material: 42CrMo
Material hardness: HB256-295
Machine type: special machine
Industry type: Automobile industry
Customer requirement: improve processing surface quality, reduce tool cost
Comprehensive evaluation: Meet customer roughness requirement. According to the tool wear analysis, The Halnn tool wear is lighter than the current tool, still could continue processing. There is no breakage, just normal wear, solve the anti-breakage property of insert. Improve the stability of cutting tools.
Crankshaft Deep Hole Drilling
Application range:
Processing diameter range: 12D-50D
Effective drilling depth: 400mm
Application cases:
Workpiece: crankshaft Workpiece material: 42CrMo
Hardness: HRC28-32 Drilling depth: 150mm
Machine: vertical machining center
Drilling method: continuous machining
Comparison test | Original inserts | Halnn inserts |
Diameter | D8 internal coolant deep hole drill | D8 internal coolant deep hole drill |
Vc(m/min) | 62.8m/min | 62.8m/min |
F(mm/min) | 500mm/min | 500mm/min |
n(r/min) | 2500r/min | 2500r/min |
Processed Quantity | 180 pcs | 220 pcs |
Results: Under the same processing parameters, the life of Halnn’s insert increased by 22%.
Transmission System
Application Case:
Gear, Gear Shaft
Recommend Grade and Process conditions
BN-H05 and BN-H11 grades for continuous process, with can high-speed cutting
BN-H10 and BN-H20 grades for Light interrupted cutting conditions, can withstand the impact of the keyway during hard turning, with stable performance
BN-H21 grade of PCBN insert is recommended for heavy interrupted cutting conditions, with good toughness, impact resistance and stable performance
Cases of Hardened Steel Gear Process
Workpiece: Gears, Inner hole,Light interrupted | 
|
Materials：20CrMnTi |
Hardness: HRC58-62 |
Type：BN-H10 CCGW09T304 |
Cutting Parameter：Vc=135m/min，Fr=0.08mm/r，ap=0.25mm |
Cutting condition: Dry Cutting |
Tools Life | Efficiency | Inserts |
1000 Pcs | Improve 22% | Halnn CBN BN-H10 Grade |
600 Pcs | ---- | Other CBN Grade |
Gearbox Housing
Milling process: The BN-S300 grade for Solid CBN insert is recommended, which significantly improves the production efficiency of the coated carbide tool and increases the tool life by N times.
Boring process: PCBN inserts (including composite and brazed) are recommended, which can significantly improve production efficiency and achieve higher surface quality.
For aluminum alloy gearbox housing: Halnn tools can provide PCD milling, boring, reaming, drilling and other tools, which greatly improves production efficiency, ensures high dimensional accuracy and reduces production costs.
Pulley
The material is HT250, which is mainly used for end face machining. PCBN inserts (including composite and brazed types) are recommended. The advantages are: stable cutting performance and doubled production efficiency.
Cv Joint
Process: Hard turning process after hot, recommended PCBN inserts, cost-effective, stable cutting performance, and can intermittent machining.
 | Workpiece: CV joint (finish) |
Material: Hardened Steel |
Insert Type: BN-H10 TNGA160408 |
Cutting parameters: Vc=190m/min, Fr=0.15mm/r, ap=0.15mm |
Processing method: Dry cutting |
Insert grade | Cutting speed | Tool Life/edge | Tool cost |
Halnn BN-H10 | 190m/min | 355 pcs | 0.06 RMB/pc |
Other CBN inserts | 170m/min | 370 pcs | 0.1 RMB/pc |
Synchronized pulley
The material is powder metallurgy. Due to the porous structure, the cutting edge of the cutting tool wears sharply. At this time, Halnn tools PCBN insert is recommended, the advantages are: sharp inserts, stable cutting performance, and tool life is increased by 50% compared to other brands CBN tools.
 | Workpiece: Synchronized pulley(Finishing) |
Material: Powder metallurgy |
Insert Type: BN-K50 DCGW11T304 |
Cutting parameters: Vc=150m/min, Fr=0.1mm/r, ap=0.2mm |
Processing method: Dry cutting |
Insert grade | Roughness | Tool Life/edge |
Halnn BN-K50 | ≤Ra0.8 | 450 pcs |
Other CBN inserts | Ra1.0 | 300 pcs |
Synchronizer Gear Hub
The material is powder metallurgy. Due to the porous structure, the cutting edge of the cutting tool wears sharply. At this time, Halnn PCBN inserts are recommended. The cutting performance is stable, and the tool life is 45% higher than that other brands CBN tools.
 | Workpiece: Synchronizer Gear Hub(Finishing) |
Material: Powder metallurgy |
Insert Type: BN-K50 DCGW11T304 |
Cutting parameters: Vc=500m/min, Fr=0.1mm/r, ap=0.2mm |
Processing method: Dry cutting |
Insert grade | Tool Life/edge | Efficiency |
Halnn BN-K50 | 145 pcs | Improved 45% |
Other CBN inserts | 100 pcs | / |
Wheel Hub
The material is aluminum alloy. Halnn PCD tools are recommended. The cutting performance is more stable, the tool service life is longer, and the efficiency and cost are improved. Halnn can provide non-standard customized services.
Steering & Braking System
Body & Auxiliary System
WhatsApp:8613271562251 
Email:service@halnn-group.com 
Language 
Cast Iron Materials Cutting Tools
