Accelerate the development and research of new cutting tool materials to drive industrial growth.
Summary: Looking back at the history of machining development, it’s clear that advancements in cutting tool materials have played a pivotal role in driving progress.
Category: Company News
Release date: 2021-05-19
Looking back at the history of machining development, it’s clear that advancements in cutting tool materials have played a pivotal role in driving progress. By the early 21st century, two major trends are expected to shape the evolution of tool materials. First, cemented carbide tools will continue expanding their application range, with titanium carbonitride-based carbides (metal ceramics), ultrafine-grain carbides, gradient-structure carbides, and composite materials combining carbides with high-speed steel gradually replacing a significant portion of traditional high-speed steel tools. This shift will encompass everything from simple, versatile tools like drills, end mills, and taps to more complex, precision-cutting tools such as gear hobs and broaches—ultimately leading to a further decline in the share of high-speed steel tools.
Thus, cemented carbides will dominate tool materials, covering most conventional machining applications. Secondly, the use of superhard cutting tools will see a significant increase. Among these, CBN—thanks to its exceptional hardness, excellent chemical stability, low thermal expansion coefficient, and high thermal conductivity—will become the primary material for high-speed machining of ferrous metals, challenging-to-cut materials, as well as for dry and hard cutting operations.
As its toughness continues to improve, the proportion of CBN in cutting tools is expected to rise significantly. Moreover, CBN remains the most promising tool material for enabling ultra-high-speed machining of ferrous metals—breaking through the critical speed threshold identified by C. Salomon—and fundamentally enhancing the efficiency of the cutting process. Meanwhile, PCD and single-crystal diamond are the optimal choices for high-efficiency, precision machining of non-ferrous metals, ceramics, glass, graphite, and other non-metallic materials. With growing demand for these materials across industries such as automotive, aerospace, electronics, and defense, the application of PCD is also set to expand even further.
Keywords: Accelerate the development and research of new cutting tool materials to drive industrial growth.
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