* Long Tool Life. CBN cutting tools have properties which resist chipping and cracking and provide uniform hardness and abrasion resistance in all directions. They may outperform conventional cutting tools by as much as 50 times. Reduced tool wear results in closer tolerances on work pieces, and fewer tool adjustments keep machine down-time to a minimum. The increased reliability of CBN cutting tools makes them a major factor in automating machining operations.
* High Material -Removal Rates. Because CBN cutting tools are so hard and resist abrasion so well, cutting speeds in the range of 250 to 400 ft/min are possible on hardened steels and speeds of 5000 ft/min are possible in pearlitic cast iron. CBN cutting tools can with stand the high temperatures created by increased speeds and feeds. This results in higher material-removal rates with less tool wear, which reduces the total machining cost per piece.
* Cutting Hard, Tough Materials. CBN cutting tools are so hard that they can efficiently machine steel with hardness of Rc 45 and above. CBN is also used for machining cobalt-base and nickel-base high-temperature alloys with hardness of Rc 35 and above. Many of these materials are so hard and tough that they must be machined at relatively low speeds. Conventional grinding is also used but is a relatively slow metal-removal process. CBN cutting tools have a high resistance to impact and therefore can machine parts with interrupted cuts and tough abrasive scale.
* High Quality Products. Because the cutting edges of CBN cutting tools wear very slowly, they produce high-quality parts faster and at lower cost per piece than do conventional cutting tools. The need for the inspection of parts is greatly reduced as is the adjustment of the machine tool to compensate for cutting-tool wear maintenance. This results in better control over work piece shape and size, which produces consistent part quality far beyond that possible with other cutting tools.
* Uniform Surface Finish. Surface finishes of less than 10 micron. are possible, which often eliminate the need for relatively slow finishing operations such as conventional grinding.
* Lower Cost per Piece. CBN cutting tools stay sharp and cut efficiently through long production runs. These results in better control over work piece shape and size and fewer cutting-tool changes. This lowers manufacturing costs per piece by reducing inspection time and increasing machine uptime.
Hard cast iron | Ni -hard, Alloy cast iron, >Chilled cast iron, Nodular cast iron |
Soft cast iron | Gray cast iron |
Sintered iron | Powered cast iron, Sintered iron |
Hardened steels | Tool steels, Die steels, Case hardened steels, Bearing steels |
superalloy | Inconel -718,-901,-600, Rane 77, 95, Hostalloy, Waspalloy, Colmonoy, K-monel |
Material | Speed (m/min) | Feed rate (mm/rev) | Depth of cut (mm) |
Pearilitic gray cast iron | 600 -1500 | 0.15-0.60 | 0.10-0.25 |
Tool steels | 60-90 | 0.10-0.20 | 0.10-0.50 |
Hard facing alloys | 100 -300 | 0.10-0.25 | 0.10-1.50 |
Powdered metal iron | 90-180 | 0.10-0.25 | 0.10-1.30 |
Finishing of superalloys | 150-250 | 0.10-0.30 | 0.10-0.40 |
Hard cast iron(45 HRC) | 40-100 | 0.10-0.60 | 0.10-2.50 |
Hardened steel (45 HRC) | 65-120 | 0.10-0.50 | 0.5-2.50 |
Hard facing alloys | 50-200 | 0.10-0.25 | 0.10-1.50 |
Powdered metal iron | 90-180 | 0.10-0.25 | 0.10-1.30 |
Hardened steel alloy | 100-150 | 0.10-0.20 | 0.10-0.50 |
Too & die alloy | 90-110 | 0.10-0.20 | 0.10-0.50 |
Sintered powdered metal iron | 60-200 | 0.10-0.25 | 0.10-1.30 |
Cast iron | 600 -1200 | 0.10-0.50 | 0.10-2.50 |
Pm iron | 90-180 | 0.10-0.20 | 0.10-1.00 |
Hardened steel milling | 200-400 | 0.10-0.20 | 0.10-1.00 |
Tool steel | 90-120 | 0.10-0.20 | 0.10-1.00 |
Hardened steel (45 HRC) | 140-250 | 0.10-0.20 | 0.10-0.25 |
Die steels | 80-140 | 0.10-0.20 | 0.10-0.25 |
Semiconductor Industry Solutions
PCD & PCBN Tools Grinding Industry
Diamond Cutting Bruting Polishing
Add: No.171 Zhongyuan Rd, Zhongyuan District, Zhengzhou, 450001, Henan, China
Tel: +86-371-86545906
Phone / Whats App: +86 18339903057
E-mail: [email protected]
