The Ideal Alternative to Ceramic Inserts ----SCBN TOOLS CBN Inserts

        In the field of machining, cutting tools, as the “teeth of industry”, directly determine machining efficiency, product precision, and production costs. Ceramic inserts once held an important position in the machining of hard materials due to their high hardness and high temperature resistance. However, with the maturity of CBN material technology, CBN inserts have become the ideal replacement for ceramic inserts with their superior overall performance—especially in high-hardness, high-precision, and continuous production scenarios, where this replacement has moved from “optional” to “necessary”.

I. Limitations of Ceramic Cutting Tools

First, they have poor impact resistance, easily chipping under intermittent cutting or impact load conditions, leading to production interruptions.

Second, they have limited wear resistance. When machining materials such as HRC55+ hardened steel and bearing steel, tool life is short, requiring frequent tool changes, which affects both efficiency and accuracy.

Third, they have insufficient thermal stability. At high-speed cutting (Vc> 200m/min), high-temperature wear easily leads to dimensional drift, making it difficult to meet the tolerance requirements of precision parts.

II. Core Advantages of CBN Inserts as a Replacement for Ceramic Inserts

SCBN TOOLS CBN inserts, as a representative of super hard tool materials, perfectly make up for these shortcomings.

1. Hardness second only to diamond, with wear resistance 3-5 times that of ceramic inserts.

2. Excellent high-temperature resistance, maintaining stable cutting at 1300℃, suitable for high-speed cutting scenarios.

3. Better toughness, with significantly better impact resistance than ceramic inserts, capable of handling complex working conditions such as interrupted cutting.

III. Typical Alternative Scenarios

1. Machining of High-Hardness Materials

For example, turning and milling of hardened steel, bearing steel, and alloy cast iron with a hardness of HRC55 or higher. CBN inserts can achieve dry high-speed cutting, while ceramic inserts are prone to chipping.

2. Intermittent Cutting and Impact Loading Conditions

In scenarios involving gear slot machining, hard turning of castings, and machining of shafts with keyways, ceramic inserts are subject to periodic impacts, resulting in high brittleness and a high chipping rate. SCBN TOOLS CBN inserts, through edge strengthening and matrix optimization, significantly improve impact resistance.

3. High-Speed Cutting and Mass Production

SCBN TOOLS CBN inserts are adapted to high-speed cutting rhythms, offering a significantly longer lifespan than ceramic inserts in mass production, reducing tool change costs and thus improving efficiency. Although the initial purchase cost is 2-3 times that of ceramic inserts, it can ultimately reduce the cost per piece by 15%-25%, achieving a high return on investment.

This precise performance and adaptability to various scenarios make CBN inserts the inevitable choice for replacing ceramic inserts in demanding machining applications.