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Cemented carbides are composed of a metal matrix composite where carbide particles act as the aggregate and a metallic binder serves as the matrix. The process of combining the carbide particles with the binder is referred to as sintering. During this process, the binder eventually will be entering the liquid stage and carbide grains (much higher melting point) remain in the solid stage. The binder is embedding/cementing the carbide grains and thereby creates the metal matrix composite with its distinct material properties. The naturally ductile metal binder serves to offset the characteristic brittle behavior of the carbide ceramic, thus raising its toughness and durability. Such parameters of carbide can be changed significantly within the carbide manufacturer's sphere of influence, primarily determined by grain size, cobalt content, dotation, and carbon content.

Carbide inserts are replaceable and usually indexable bits of cemented carbide used in machining steels, cast iron, high temperature alloys, and nonferrous materials. Carbide inserts allow faster machining and leave better finishes on metal parts. Carbide inserts can withstand higher temperatures than high speed steel tools.

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Carbide is more expensive per unit than other typical tool materials, and it is more brittle, making it susceptible to chipping and breaking. To offset these problems, the carbide cutting tip itself is often in the form of a small insert for a larger tipped tool whose shank is made of another material, usually carbon tool steel. This gives the benefit of using carbide at the cutting interface without the high cost and brittleness of making the entire tool out of carbide. Most modern face mills use carbide inserts, as well as many lathe tools and endmills.

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As our carbide end mills are made of tungsten carbide, the performance, quality and lineup have been well established especially for sizes up to 12mm.

At the recentest factory where the room temperature and oil temperature are continuously controlled, we are aiming for even higher accuracy and higher quality. In addition, we can also produce special products over and above our standard products listed in the catalog for quick delivery so that we can respond quickly to customer needs.

We are not limited to the Japanese market. We are expanding our sales in Europe, America, Greater China and other Asian countries, and strive to become even more global in the immediate future. Please put our Unimax series that have been created by our reliable “Made in Japan” technology to the test.

To increase the life of carbide inserts, they are sometimes coated. Four such coatings are TiN (titanium nitride), TiC (titanium carbide), Ti(C)N (titanium carbide-nitride), and TiAlN (titanium aluminum nitride). Most coatings generally increase a tool's hardness and/or lubricity. A coating allows the cutting edge of a tool to cleanly pass through the material without having the material gall or stick to it. The coating also helps to decrease the temperature associated with the cutting process and increase the life of the tool. The coating is usually deposited via thermal CVD and, for certain applications, with the mechanical PVD method at lower temperatures.

Here you will find all the catalogs and brochures for our Metalworking products. Explore the range in more detail below.

The factory surface has been expanded to further promote our mass production technology, and our production capacity has been further increased.

The UNIMAX series boasts high dimensional accuracy due to its proprietary in-house production machines and measuring equipment. The unique flute geometry achieved by our in-house developed grinding program and various coating films developed for various materials achieve high performance, such as realizing direct milling of tunsten carbide, which was impossible up until now.