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Applications of PCBN Tools

2018.11.28More SuperHard Products Co., Ltd15

pcbn cutting tool, cbn inserts

The Advantages Of PCBN Cutting Tools, CBN Inserts

* 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.

The applications of PCBN cutting tools, CBN inserts

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

The working parameters of PCBN cutting tools

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

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