The mechanism governing cutting of hard materials with hybrid Laser/Waterjet system through controlled fracture [PDF]
Ceramics are generally difficult to machine due to their inherent natures of high hardness and low toughness. The present dissertation investigated the mechanism governing cutting of hard ceramic materials with a novel hybrid CO2-Laser/Waterjet (LWJ ...
Wu, Zhuoru
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On the Choice of Tool Material in Friction Stir Welding of Titanium Alloys [PDF]
Friction Stir Welding (FSW) is a solid state welding process patented in 1991 by TWI; initially adopted to weld aluminum alloys, is now being successfully used also for magnesium alloys, copper and steels.
Buffa, G. +3 more
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Small-scale mechanical properties of constitutive phases within a polycrystalline cubic boron nitride composite [PDF]
Micromechanical properties of a polycrystalline cubic boron nitride (PcBN) composite have been assessed by statistical analysis of data gathered from experimental massive nanoindentation.
Besharatloo, Hossein +4 more
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Superhard cutting materials [PDF]
Tato bakalářská práce se zabývá supertvrdými řeznými materiály, mezi které patří diamant a kubický nitrid boru. Je členěna do tří částí. V první je krátké shrnutí materiálů řezných nástrojů používaných v současnosti ke strojnímu obrábění.
Mlčoch, Petr
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Mechanics guided design of hybrid laser/waterjet system for machining of hard and brittle materials [PDF]
The two main objectives of this work is 1) to develop a mathematical model to efficiently capture the fracture behavior of materials undergoing thermal shock and 2) to design and develop a mechanics based hybrid laser/waterjet manufacturing process that ...
Kalyanasundaram, Dinesh
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Effect of two-step pretreatment on cobalt contents and surface roughness of tungsten carbide substrate prior to diamond coating [PDF]
Cemented tungsten carbide is the most widely used material for cutting tools. Due to extreme demands higher tool life several types of coating have been introduced to prolong the service time which include diamond coating.
Safari, Habiballah
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High Speed Finish Turning of Inconel 718 Using PCBN Tools under Dry Conditions
Inconel 718 is a superalloy, considered one of the least machinable materials. Tools must withstand a high level of temperatures and pressures in a very localized area, the abrasiveness of the hard carbides contained in the Inconel 718 microstructure and
José Luis Cantero +4 more
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Елементні показники процесу точіння загартованої сталі пластинами із ПКНБ [PDF]
Розроблена спрощена методика визначення елементних показників (напружень та коефіцієнтів тертя) на передній та задній поверхнях леза, наведено приклад їх розрахунку для процесу точіння полікристалічним кубічним нітридом бора (ПКНБ) загартованої сталі.A ...
Кравченко, Ю. Г. +1 more
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Hard Turning of Sintered Cemented Carbide Parts: A Shop Floor Experience [PDF]
Machining hardened steel has been a recurring issue in the literature when tools with defined geometry cutting edges are used. It is well known the use of cemented carbides to produce cutting tools.
Coppini, N.L. +4 more
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The article presents the results of experimental studies on the influence of various cutting regimes on the surface roughness of high-hardness hardened steel obtained after face milling with polycrystalline cubic boron nitride (PCBN) tools, both uncoated
Ya.Р. Kovalenko, P.Р. Melnychuk
doaj +1 more source

