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In modern machinery manufacturing, especially in the fields of high-volume precision machining such as automobiles, construction machinery, and aerospace, the requirements for processing efficiency and precision of difficult-to-machine materials (such as hardened steel and cast iron) are becoming increasingly stringent. Cubic boron nitride (CBN) Cutting tools, with their extremely high hardness and excellent thermal stability, have become an ideal alternative to grinding.
When standard cutting tools cannot meet complex machining needs, non-standard CBN forming tools have emerged. They combine the ultra-hard properties of CBN with the high efficiency of "forming" machining, providing the ultimate solution to challenging machining problems.
I. What are Non-Standard CBN Forming Tools?
Simply put, non-standard CBN forming tools are CBN tools custom-designed according to the specific contours, dimensional tolerances, and process requirements of the workpiece.
Unlike welded or indexable standard inserts, the cutting edge shape of forming tools perfectly matches the machined surface. Complex surface, step, chamfer, or arc machining can be completed in a single cutting action, simplifying "multi-process" machining into "single-process" machining.
II. Core Advantages
1. Extremely High Machining Efficiency and Extremely Low Unit Cost
· Cutting Instead of Grinding: For hardnesses up to HRC For 45-65 hardened steel or high-hardness cast iron, traditional processes often rely on expensive grinding machines. Non-standard CBN forming tools enable high-speed turning or milling, directly machining workpieces from a "blank" or "semi-finished" state to finished dimensions, increasing efficiency several times or even tens of times.
* **Process Integration:** Complex contours are completed in a single pass, reducing tool change time and the use of multiple machines, significantly lowering the cost per unit.
2. **Excellent Surface Quality and Precision Consistency:**
* **Exceptional Wear Resistance:** CBN material has a hardness second only to diamond, exhibiting extremely high wear resistance. In continuous cutting, non-standard forming tools maintain excellent contour retention, ensuring consistency across thousands of parts over extended periods, making them particularly suitable for mass production.
* **Reduced Surface Roughness:** Due to the use of wide-blade finishing or forming designs, the surface roughness can typically reach Ra 0.4-0.8, even replacing some finishing grinding processes.
3. **Solving the Pain Points of Machining Difficult-to-Machine Materials:** High hot hardness: CBN maintains its hardness even at high temperatures (above 1000℃), making it ideal for dry or high-speed cutting and avoiding hot cracking caused by improper cutting fluid use.
Chemical inertness: Compared to cemented carbide, CBN exhibits excellent chemical stability to ferrous metals (such as cast iron and powder metallurgy materials), and is less prone to diffusion wear.
4. Simplified process chain: For parts with complex features such as oil grooves, chamfers, and end face grooves, using non-standard forming tools can integrate processes that originally required multiple machine tools and various cutting tools into a single CNC lathe or machining center, reducing clamping errors.
If you have any questions about MANF brand tools, please call us for consultation or negotiation"
Contact us:Company name:Kunshan Meiyaxing Hardware Machinery Co., Ltd;Tel:8618962438699;Address: Room 3003, Building 3, Zhengtailong, No. 1288 Chengbei Middle Road, Kunshan City, Jiangsu Province, China;Email:myxcuttingtools@gmail.com;Website: https://www.myxcuttingtools.com
