HOW CUBIC BORON NITRIDE INSERTS IMPROVE PRECISION & TOOL LIFE
                     HOW CUBIC 
BORON NITRIDE 
INSERTS IMPROVE 
MPA PaRracchinEticaCl GuIide ting SIoO HigNh-Pe r&form ance 
wTwwO.hypOercbnL.co mLIFE
01 | WHY CBN HIGH WEAR 
INSERTS HMaAinRtaDinsN aE stSroSng and RESISTANCE
durable cutting edge 
MModAernT mTanEufaRcturing demands Resists abrasive wear when machining hard and helps the cutting 
higher precision, faster materials. edge remain effective for 
production, and longer.
consistent quality.
When machining hardened materials, 
cutting tools are exposed to intense 
THERMAL PRECISION
heat, friction, and abrasive wear. 
These conditions can cause premature STABILITY Helps maintain 
tool failure and affect the accuracy of Performs reliably under consistent dimensions 
finished components. the high temperatures and surface quality 
Cubic Boron Nitride Inserts generated during throughout production.
provide a solution by combining: demanding machining 
operations.
02 | WHAT ARE CUBIC 
BORON NITRIDE 
ICNubSic bEorRonT niStrid?e (CBN) is a synthetic superhard material 
widely used in cutting tools for machining difficult and hardened 
materials.
CBN inserts are particularly suited to applications involving:
• Hardened steels
• Cast iron
• Tool steels
• Bearing components
• Automotive components
• Wear-resistant materials
Unlike conventional cutting tools that may experience rapid wear when machining hardened materials, CBN 
maintains its hardness and cutting performance under demanding conditions.
03 | HOW CBN 01 — STABLE 02 — 
INSERTS CUTTING EDGE DIMENSIONAL 
IMPROVE The cutting edge remains CONSISTENCYeffective for longer, 
PPreRcisioEn iCs crIitiScal IwOhenN manufacturing Reduced edge wear helps supporting consistent components that must meet tight maintain component machining performance.
dimensional requirements. dimensions throughout a 
A worn cutting edge can change the production run.
geometry of the cut, resulting in 
dimensional variation, poor surface finish, 
or rejected components. 03 — BETTER 04 — REDUCED 
CBN inserts help address these SURFACE FINISH PROCESS 
challenges through their excellent wear A stable cutting edge can VARIATION
resistance and cutting-edge stability. produce smooth and Consistent tool performance 
consistent machined can help reduce variations 
surfaces. between components.
04 | HOW CBN WEAR RESISTANCE HEAT RESISTANCE
INSERTS CBN's exceptional hardness CBN can retain its useful helps resist abrasive wear properties at elevated cutting 
EXTEND TOOL when machining hard temperatures.
Tool life directly affects manufacturing costs materials.
aLnd IpFrodEuctivity.
Frequent insert changes can increase 
downtime, interrupt production, and require 
additional operator intervention.
CBN inserts are designed to withstand EDGE RETENTION FEWER TOOL 
demanding cutting conditions and resist 
several forms of tool wear. The cutting edge can remain 
CHANGES
effective over longer machining Longer-lasting cutting edges 
cycles when the insert and can reduce the frequency of 
cutting conditions are correctly insert replacement.
matched.
05 | THE CBN PERFORMANCE ADVANTAGE
CBN INSERTS AT A 
GLANCE THE BIG PICTURE
PERFORMANCE 
ADVANTAGE Longer Tool Life
FACTOR
↓
Hardness ★★★★★ Fewer Tool Changes
Wear Resistance ★★★★★ ↓
More Consistent Production
Thermal Stability ★★★★★ ↓
Dimensional Better Machining Efficiency
★★★★★
Consistency
Surface Finish ★★★★☆
Production Efficiency ★★★★☆
06 | COMMON 
ACBNP inPserLts aIrCe wAidelTy uIseOd inN indSustries where hard materials, 
precision, and repeatability are important.
AUTOMOTIVE BEARING 
Used for machining gears, MANUFACTURING
shafts, brake components, Suitable for precision 
and other hardened parts. machining of hardened 
bearing components.
GENERAL TOOL & DIE
ENGINEERING Useful for machining 
Used for demanding turning hardened tool steels and 
and finishing applications wear-resistant components.
involving hard materials.
07 | HARD TURNING WITH 
CBN INSERTS
One of the most important applications for CBN inserts is hard 
turning.
Hard turning involves machining hardened materials, often where 
traditional cutting methods may face challenges.
With the right insert grade, geometry, and cutting parameters, CBN 
inserts can help manufacturers achieve:
HIGH CONSISTEN GOOD LONGER 
PRODUCTI T SURFACE TOOL LIFE
VITY DIMENSIO FINISH
NS
In some applications, hard turning can also reduce the need for 
separate finishing operations, potentially simplifying the overall 
manufacturing process.
08 | CHOOSING THE RIGHT CBN INSERT
Selecting the correct CBN insert is essential for achieving the expected performance.
CONSIDER THESE FACTORS:
01 02 03
01 | WORKPIECE 02 | MACHINING 03 | CUTTING 
MATERIAL OPERATIONDetermine whether the SSePleEct EcuDtting parameters 
Identify the material being application involves roughing, appropriate for the material and 
machined and its hardness. semi-finishing, or finishing. insert grade.
04 05 06
04 | FEED 05 | DEPTH OF CUT 06 | INSERT 
RUAseT aE suitable feed rate to Choose an insert and cutting GEOMETRY
balance productivity, surface strategy suited to the required Consider insert shape, nose 
finish, and tool life. depth of cut. radius, edge preparation, and 
chip-control requirements.
09 | CBN INSERTS CBN INSERTS
VS. CONVENTIONAL 
CUTTING TOOLS • Designed for hard and demanding machining• Excellent resistance to abrasive wear
CONVENTIONAL • Strong performance at elevated cutting temperatures
TOOLS • Helps maintain consistent cutting performance
• May experience faster wear in hardened materials • Can support longer production cycles
• Cutting-edge stability can decrease as wear 
progresses
• More frequent tool changes may be required
• Performance can vary as the tool wears Connect With Us 
Today-
www.hypercbn.co
[email protected]