CBN Inserts
Cubic boron nitride inserts, often referred to as CBN inserts, are engineered cutting tools renowned for their extraordinary hardness, second only to diamonds. Composed of boron and nitrogen atoms in a crystal lattice structure, CBN inserts exhibit exceptional wear resistance, making it essential for machining hardened steels, all types of cast iron, as well as a number of heat-resistant and sintered materials and exotic hard-to-machine alloys.
Key Advantages
of Using CBN Inserts
of Using CBN Inserts
Precision and Accuracy
CBN inserts excel in delivering precision and accuracy, ensuring the final product meets the tightest tolerances and specifications.
Extended Tool Life
Thanks to their exceptional durability, CBN inserts last significantly longer than traditional carbide inserts, resulting in reduced tool replacement costs.
Improved Surface Finish
CBN inserts produce a superior surface finish, reducing the need for secondary operations and enhancing the end-product quality.
Enhanced Productivity
The combination of precision, durability, and speed makes CBN inserts a powerful tool for boosting overall productivity in machining operations.
When it comes to precision machining, each CBN insert is manufactured differently. The primary distinction lies in the grades. As a cutting tool manufacturer, WENZA offers a diverse range of CBN grades, each designed for specific materials and applications. Refer to the table below for more information.
CBN Grades Description
Standard Grades
Application
For high speed machining of cast irons. The universal grade can be used for semi-finishing and roughing of hard materials, hardened steels. Suitable both for heavy interrupted machining with large depth of cut and continuous semi-finishing turning.
RK(C)*
* - TiAlN coating
Microhardness, GPa 32-36
CBN Content, % – 80…82
Grain Size, nm – 300
Microhardness, GPa 32-36
CBN Content, % – 80…82
Grain Size, nm – 300
RH(C)*
* - TiAlN coating
Microhardness, GPa – 29
CBN Content, % – 63…65
Grain Size, nm – 300
Microhardness, GPa – 29
CBN Content, % – 63…65
Grain Size, nm – 300
For machining of hardened steels (HRC 55-63) in continuous and interrupted semi-finishing and finishing at medium cutting speeds. Possible to machine both with coolant supply and without.
RHS(C)*
* - TiAlN coating
Microhardness, GPa – 25
CBN Content, % – 43…45
Grain Size, nm – 100
Microhardness, GPa – 25
CBN Content, % – 43…45
Grain Size, nm – 100
For high speed machining of hardened steels (HRC 58-63) in continuous and interrupted semi-finishing and finishing. Possible to machine both with coolant supply and without.
RB1(C)*
* - TiAlN coating
Microhardness, GPa – 32
CBN Content, % – 50
Grain Size, nm – 300
Microhardness, GPa – 32
CBN Content, % – 50
Grain Size, nm – 300
For medium and low speed machining of hardened steels (HRC 48-60) in continuous finishing. Possible to machine both with coolant supply and without.
* - TiAlN coating
Microhardness, GPa – 27
CBN Content, % – 50
Grain Size, nm – 200
Microhardness, GPa – 27
CBN Content, % – 50
Grain Size, nm – 200
RB(C)*
For machining of hardened steels (HRC 58-65) in continuous and slightly interrupted finishing. Possible to machine both with coolant and without.
We are WENZA can provide customized CBN inserts, tailored to your unique machining requirements, ensuring optimal performance. For example, Wiper geometry inserts can be manufactured as per request.
Cutting Edge Designs
Chip Breakers Navigator for Carbide Inserts
When it comes to carbide inserts, one of the most important factor for selecting one is a chip breaker. The chip breaker is a feature designed into the cutting edge of the insert that help control the chip formation and evacuation during machining. These features are crucial for optimizing the machining process, enhancing tool life, and improving surface finish. Chip breakers come in various shapes, each suitable for the particular material and application. For more information about chip breakers for carbide inserts by WENZA refer to the tables below.
Depth of Cut for Brazed Inserts
Depth of Cut for Solid Inserts
Selecting the right CBN insert is crucial for achieving the desired results in your machining operations. Factors such as material, cutting speed, and surface finish requirements all play a role in determining the best tool for your needs. Whether you're working with softer materials or tackling the toughest hardened steels, there's a CBN insert engineered to meet your specific requirements.
Let us help you with this choice. Fill in the form and our specialists will contact you shorty!
Let us help you with this choice. Fill in the form and our specialists will contact you shorty!
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Availability in Shapes and Sizes for CBN Inserts
CBN inserts come in various shapes and sizes, allowing you to select the most suitable tool for your specific application. Whether it's turning, milling, or grooving, there's a CBN insert that fits your needs.
Looking for a specific CBN Insert?
Contact us and get a free consultation to help you plan and execute your metalworking projects.
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