High Efficiency milling tools cubic boron nitride insert

The mold, especially precision molds usually required high performance, such as tool life time, wear resistance, toughness, fatigue resistance, corrosion resistance, etc,. So in the manufacturing process, heat-treatment process is often adopted to obtain excellent performance.

Simple processing process of mold: Forging (stamping) - machining - heat treating- assembly. For processing high-precision parts, the mold precision and dimension require more strict. But machining a high hardness after heat treating, and meeting all aspects performance of the mold, it have difficult processing problems, mold hardness after heat treatment is usually more than HRC50, some mold hardness will reach HRC60 or higher.

Rough milling mold usually use CBNinsert, and fine milling mold also can not use carbide cutting tools. Carbide cutting tools only used for processing the work piece with hardness above HRC45,the hardness of the molds already beyond the range of Carbide cutting tools that can be processed.

High hardness mold can only adopt milling CBN insert, CBN insert can meet all the conditions of milling mold. BN-S200non-metallic (ceramic) CBN insert can be used for fine milling the mold, and the biggest difference between traditional inserts(like ceramic insert ,carbide cutting tools) , CBN insert has strong impact toughness, high-speed cutting dies, no chipping with interrupted turning situations.

For example, BN-S200 CBN insertmachining Cr12MoV material mold, hardness HRC 65, machining processes are finish milling flat surface, cutting parameters: ap = 0.5mm; Fr = 0.12mm / r, Vc = 130m / min.

Processing effect:Compared with an European brands PCBN inserts: In the case of the same cutting parameters, tool life is higher than the European brand PCBN inserts,and cutting tool costs will reduce to 60%.

In addition to processing Mold, CBNinsert also can be used for machining the following materials with high efficiency :

1.High hardness cast iron/cast steel processing, such as: high-chrome cast iron, white cast iron, nickel hard cast iron etc. high hardness alloy cast iron, high manganese steel and other heat-resistant wear-resistant steel roughing and finishing;

2. High hardness work piece processing after heat treatment, such as: hardened bearing steel, hardened steel, nitrided steel, tool steel, mold steel hard turning after heat, can be interrupted cutting [insert toughness and wear resistance is excellent; processing high hardness steel parts between HRC45-HRC79]

3. Others difficult to cut materials categories: high-temperature alloys, powder metallurgy and tungsten carbide, nickel-based, cobalt-based alloy processing and thermal spray spary welding parts hard face processing [non-standard can be customized , sample processing]

4. Ordinary gray cast iron, pearlite ductile iron high-speed cutting [cutting tool life is 10-20 times of the alloy cutting tools]

More information on milling cbn insert BN-S200,you can check http://www.halnntools.com/pro/Solid_CBN_inserts/, Or contact with us halnntools@gmail.com ,skype :cbn_inserts_angels