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Full face PCD insert
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C (80° diamond)
D (55° diamond)
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solid CBN insert
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C (80° diamond)
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Home >> Technical FAQs >> How to choose the correct bond for cbn inserts turning


How to choose the correct bond for cbn inserts turning?

There are ten questions as below, more answers we have got will be more exact and correct bond of PCBN inserts, drawing or product picture will be much appreciated.
①what pcbn inserts are in demand, solid cbn inserts,thoroughly brazed inserts or tipped pcbn inserts? if brazed or tipped inserts, how many cutting edges/working tips needed?
②the work part name for machining: such as automotive brake disk, engine block, metallurgy roller, water pumps, valve seat, reverse gear, bearing etc.
③the work piece material: such as hardened steel, cast iron, gray cast iron, nodular/ductile cast iron, high speed steel, die steel, bearing steel, cemented steel, heat resisting steel, carbon tool steel, chromium molybdenum alloy and nickel molybdenum alloy.
④hardness of the cast iron/steel for machining, such as HB170, HB300, HRC45, HRC65?
⑤turning or milling? machining method: rough machining, semi-finish machining or fine-machining?
⑥for continuous machining, light interrupted/intermittent machining or heavy interrupted/intermittent machining?
⑦is the machining process adding coolant or dry machining?
⑧if the insert plate need negative T land/chamfer or ER treated/honing? like CNMN 120408 T 0.2×20°
⑨if the insert plate need wiper, any requirements on surface finish? for obtaining better roughness than Ra 0.4 or Ra 0.6.
⑩cutting condition parameters.
cutting speed (V):= ? meter/minute (or tell us the workpiece diameter and the rotary speed)
cutting depth (ap):= ? mm (Penetration of a tool)
feeding speed (f):= ? mm/revolve (The amount of feed/feed motion)

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