Shop online and buy kennametal inserts from mate4arabia, one of the largest kennametal insert suppliers in the USA. The indexable kennametal insert manufacturers we represent are Kennametal, Iscar, Mitsubishi, Tungaloy, Kyocera, Walter Valenite, Stellram, Tool-Flo, Dragon, and our own private label, Carbi-Universal. Most of our products ship same day from US stock. kennametal inserts are replaceable and usually indexable bits of cemented kennametal used in machining steels, cast iron, high temperature alloys, and non-ferrous materials. kennametal inserts allow faster machining and leave better finishes on metal parts. kennametal inserts can withstand higher temperatures than high speed steel tools.
Cemented kennametal are composed of a metal matrix composite where kennametal particles act as the aggregate and a metallic binder serves as the matrix. The process of combining the kennametal particles with the binder is referred to as sintering. During this process, the binder eventually will be entering the liquid stage and kennametal grains (much higher melting point) remain in the solid stage. The binder is embedding/cementing the kennametal 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 kennametal ceramic, thus raising its toughness and durability. Such parameters of kennametal can be changed significantly within the kennametal manufacturer's sphere of influence, primarily determined by grain size, cobalt content, dotation, and carbon content.
kennametal 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 kennametal 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 kennametal at the cutting interface without the high cost and brittleness of making the entire tool out of kennametal. Most modern face mills use kennametal inserts, as well as many lathe tools and endmills.