合作伙伴：
 |  |  |  |  |
 |  |  |  |  |
 |  |  |  |  |
In the process of processing automotive parts, tools often have problems such as non-wear resistance, low efficiency, or high hardness of the parts, and immovability. Therefore, Hualing has developed a variety of materials to respond to different materials of automotive parts, and specific cutting parameters. as follows.
Processing materials | Processing procedure | CBN tool cutting parameters | Recommended CBN tool grades | ||
Cuttingspeed Vc (m / min) | Knife Depthap(mm) | Feed rateFr （mm/r） | |||
Hard steel (Hardness ≥HRC45) | finishing | 90-250 | ≤1 | 0.05-0.35 | BN-H05，BN-H10，BN-H11，BN-H21，BN-H20， |
grey cast iron | roughing | 400-1200 | 1-10 | 0.2-1.0 | BN-S300 |
finishing | 600-2000 | ≤1 | 0.05-0.3 | BNK30 | |
Powder metallurgy | finishing | 80-150 | ≥0.5 | 0.1-0.5 | BNK30，BN-K10，BN-K50，BN-H21 |
finishing | 90-180 | ≤0.5 | 0.1-0.2 | ||
Work material | Diamond tool cutting parameters | Recommended diamond tool grades | ||||||
Cutting speed Vc（m/min） | Feed rate Fr（mm/r） | Cutting depthap（mm） | ||||||
Aluminum alloy | 4-8%Si | 100-5000 | 0.03-0.5 | 0.1-3.0 | CDW010 | CDW302 | CDW005 | CDW850 (CDW20-1） |
9-13%Si | 100-3000 | 0.03-0.5 | 0.1-3.0 | CDW010 | CDW302 | CDW850 (CDW20-1） | ||
＞13%Si | 100-2500 | 0.03-0.4 | 0.1-2.5 | CDW010 | CDW302 | CDW025 | CDW850 (CDW20-1） | |
Tool drawings for automotive parts processing | ||
|
|
|
| Engine blocka |
(1) Milling process: The use of Valin Superhard Cubic Boron Nitride BN-S300 grades has significantly improved productivity and stable cutting performance, and can be an advantage to replace Seco tools and other international first-line brands.
(2) Boring process: BN-S300 or BNK30 is recommended, which is one of the masterpieces of cutting tool localization in the engine industry with high cost performance and stable cutting performance.
(3) Stop chamfering process: customized according to customer needs, the advantage lies in stable cutting performance and high cost performance.
(4) For the cylinder block of aluminum alloy engine: Hualing super-hard PCD tool is selected for high-speed milling plane. Its cutting speed can reach 3000m / min, and it has excellent processing characteristics. For the hole system, Hualing super hard PCD reamer is recommended to improve the tool life and ensure higher dimensional accuracy and surface roughness.
The milling cases are as follows:
 | Processing material: gray cast iron Processing procedure: Fine milling Blade model: BN-S300 SNEN090308ENS-M08 Cutting parameters: Vc = 1700m / min, Fz = 0.12mm / r / per tooth, ap = 0.3mm Processing method: dry cutting | ||
Tool material | Feed rate | Single-edged life | effectiveness |
Valin BN-S300 | 3670mm/min | 100 pieces / blade | 0.6 times improvement |
European Brand CBN | 2200mm/min | 80 pieces / blade | ----- |
| Engine cylinder head |
(1) Cylinder head fine milling process: BN-S300 grade overall polycrystalline cubic boron nitride inserts are recommended, which significantly improves productivity and stable cutting performance. Can replace Seco cutting tools and other international first-line brands.
(2) Valve chamfering process: customized according to customer needs, the advantage lies in stable cutting performance and high cost performance.
(3) Turning process of supporting valve seat: DCGW11T304 is recommended for common models. The advantage is that it can achieve high-speed cutting and obtain high finish.
| Boron cast iron cylinder liner |
(1) Cylindrical turning process: The overall polycrystalline cubic boron nitride insert BN-S300 is recommended for dry cutting, and its tool durability is improved by N times compared to ceramic tools.
(2) Grooving process: customized according to customer requirements to obtain longer tool life and higher production efficiency.
The case of external turning is as follows:
 | Processing procedure: finishing outer circle Workpiece material: Boron cast iron Blade model: BN-S300 SNMN120412 Cutting parameters: Vc = 850m / min, Fr = 0.25mm / r, ap = 0.5mm Processing method: wet cutting | ||
| Tool material | Cutting speed | Processing cycle | Single-edged life |
Valin BN-S300 | 850m/min | 23 seconds / piece | 120 pieces / blade |
European brand ceramic blade | 500m/min | 40 seconds / piece | 25 pieces |
| Gear, gear shaft |
(1) Continuous cutting conditions: BN-H11 and BN-H20 inlaid cubic boron nitride inserts are recommended. Multi-edges are more economical and high-speed cutting, which is N times longer than ceramic inserts.
(2) Intermittent cutting conditions: The composite cubic boron nitride inserts BN-H10 and BN-H21 are recommended for stable cutting performance, which can replace imported tools with advantages.
