• alloy
  • This bronze alloy is very corrosion-resistant, a property which makes it suitable for use in environments such as the ocean. (wikipedia.org)
  • Whether the alloy was chosen because of metallurgical properties which facilitated casting or because of its whiter, more lustrous finish is a matter of conjecture. (wikipedia.org)
  • Modern "bismuth bronze" is technically neither an alloy nor a bronze, but a composite material containing brass and bismuth (though some bronzes are still used). (wikipedia.org)
  • Because liquid bismuth can lead to embrittlement in an alloy, care must be taken in processing and recycling of these materials. (wikipedia.org)
  • Arbor Milling can create an untempered martensitic layer on the surface of heat-treated alloy steels, about 0.001 in. (wikipedia.org)
  • A physics-based constitutive model involving material plasticity and grain refinement is developed based on both slip and twinning mechanisms and successfully implemented in a finite-element (FE) analysis with multiple cutting passes to predict the microstructure evolution by nanocrystalline grain refinement and other improvement of the surface integrity in the cryogenic machining of AZ31B Mg alloy. (asme.org)
  • Recently, cryogenic machining has also been conducted on AZ31B Mg alloy to improve the machined surface integrity of mechanical components made by this material [ 14 ]. (asme.org)
  • 15 ] unveiled the significant effect of cryogenic cooling on the surface integrity in the machined surface of AZ31B Mg alloy, in terms of better surface finish, the formation of UFG surface layer, increased microhardness and compressive residual stress. (asme.org)
  • There are two mechanisms that may change an alloy's properties during heat treatment: the formation of martensite causes the crystals to deform intrinsically, and the diffusion mechanism causes changes in the homogeneity of the alloy. (wikipedia.org)
  • steels
  • It is usually better suited to the machining of very hard materials than is "regular" machining (that is, cutting larger chips with cutting tools such as tool bits or milling cutters), and until recent decades it was the only practical way to machine such materials as hardened steels. (wikipedia.org)
  • brass
  • Brass is often used in situations in which it is important that sparks not be struck, such as in fittings and tools used near flammable or explosive materials. (wikipedia.org)
  • The relatively low melting point of brass (900 to 940 °C, 1,650 to 1,720 °F, depending on composition) and its flow characteristics make it a relatively easy material to cast. (wikipedia.org)
  • By varying the proportions of copper and zinc, the properties of the brass can be changed, allowing hard and soft brasses. (wikipedia.org)
  • The pattern the globules form on the surface of the brass increases the available lead surface area which in turn affects the degree of leaching. (wikipedia.org)
  • As a result, the use of low or no lead (Pb) materials (especially in brass) is now essential for continued sale of products starting in year 2010. (sumobrain.com)
  • composition
  • The analysis of the chemical composition of certain material only identifies what percentage of the elements exists in the material but does not identify particular characteristics about the geometry of the graphite nodules. (hindawi.com)
  • Products and methods for controlling the porosity and permeation of a web are provided using a curable thixotropic shear thinnable polymer composition that preferably encapsulates a plurality of fibers of the web and/or forms an internal layer within the web. (google.es)
  • The effective pore size of the web is controlled by regulating various factors such as the thickness of the polymer composition encapsulating the fibers and the thickness and placement of the internal polymer layer. (google.es)
  • The controlled placement is preferably performed by applying the polymer composition onto a surface of a moving web, shear thinning the composition and placing. (google.ca)
  • The controlled placement is preferably performed by applying the polymer composition onto a surface of a moving web, shear thinning the composition and placing it into the web, and curing the polymer composition. (google.ca)
  • or has both encapsulated structural elements and an internal layer of polymer composition. (google.ca)
  • constitutive
  • The Lagrangian formulation proposed in the FE code DEFORM 3D TM and the constitutive Johnson-Cook material model were utilized to simulate the chip formation and to predict the cutting reaction forces as well as the temperature in gun drilling process using carbide gun drills with two different diameters. (scientific.net)
  • To study the material behavior plenty of numerical models were developed, e.g. the microplane model for constitutive laws of materials. (wikipedia.org)
  • metal
  • Bismuth is a non-toxic heavy metal, and as legislation such as the EU Restriction of Hazardous Substances or the American Reduction of Lead in Drinking Water Act continue to regulate the amount of lead that can be in a product or environment, more lead-free alternative materials have been developed which maintain properties of their lead predecessors without containing lead. (wikipedia.org)
  • These particles deform easily within the crystal structure and across the surface of the metal to act as a low-shear solid lubricant in cases of low lubrication. (wikipedia.org)
  • Abstract: Here a simple and direct method based on transfer printing has beep developed, in which rigid stamps transfer metal films deposited on the relief surface of the stamps onto patterned organic substrates. (scientific.net)
  • It is a heavy metal that is denser than most common materials. (wikipedia.org)
  • Heat treatment provides an efficient way to manipulate the properties of the metal by controlling the rate of diffusion and the rate of cooling within the microstructure. (wikipedia.org)
  • A metalloid is an element with properties in between, or that are a mixture of, those of metals and nonmetals, and which is therefore hard to classify as either a metal or a nonmetal. (wikipedia.org)
  • porosity
  • Additional measurements of web density, micro porosity, placement of an internal layer of polymer within the web, analysis of elements on the treated web, and the size of the polymer bead applied to the moving web are measured for controlling online the apparatus and the process of this invention. (google.ca)
  • silicon
  • The electrical properties of silicon and germanium enabled the establishment of the semiconductor industry in the 1950s and the development of solid-state electronics from the early 1960s. (wikipedia.org)
  • high
  • Creep-feed grinding (CFG) was invented in Germany in the late 1950s by Edmund and Gerhard Lang. Unlike normal grinding, which is used primarily to finish surfaces, CFG is used for high rates of material removal, competing with milling and turning as a manufacturing process choice. (wikipedia.org)
  • These findings revealed, for the first time, the potential of the NBB mica to produce nanocomposite coatings in combination with biopolymers for the generation of new functional features, such as transparent high oxygen barrier materials. (mdpi.com)
  • This property of aluminium makes it particularly useful for a variety of electrical and electronic applications, for high voltage hardware, busbars, magnetic compasses, parabolic antennas, computer disks, etc. (azom.com)
  • This direct way of heating allows the application of very high heating and cooling rates, enhancing densification over grain growth promoting diffusion mechanisms (see Fig. 1), allowing maintaining the intrinsic properties of nanopowders in their fully dense products. (docplayer.net)
  • The question implies that some impenetrable layer of air exists around a wheel, so you need an extraordinarily high pressure to penetrate the air barrier, pressurize the fluid, and force it into the arc of cut. (sme.org)
  • Concrete has very favourable properties in fire - it is not adversely affected by fire until it reaches very high temperatures. (wikipedia.org)
  • compressive
  • It is found that we can get residual compressive stress and fine quality on machined surface of bearing race by pre-stress hard cutting and increase its productivity as well. (scientific.net)
  • good
  • The developed and validated 3D FE model can be used for optimizing the cutting process in gun drilling (good surface finish and straightness) taking into account the complex gun drill geometry, cutting conditions, heat transfer and the thermo-mechanical behaviour of the workpiece material. (scientific.net)
  • nozzle
  • The simplest way to apply fluid properly is to design a fluid application nozzle that will ensure that the fluid velocity exiting the nozzle equals the surface speed of the grinding wheel. (sme.org)
  • wear
  • Cryogenic machining firstly has been considered as an eco-friendly and pollution-free machining technology of difficult-to-machine materials, in order to significantly increase the tool life and reduce tool wear due to the reduction of tool-tip temperature [ 9 , 10 ]. (asme.org)
  • Mangalloy is a unique non-magnetic steel with extreme anti-wear properties. (wikipedia.org)
  • steel
  • With further studies of this process, the improved surface integrity has been found in the machined surface of Inconel 718, AISI 4140, and 52100 steel [ 11 - 13 ]. (asme.org)
  • Unlike other forms of steel, when stretched to the breaking point, the material does not "neck down" (get smaller at the weakest point) and then tear apart. (wikipedia.org)
  • Though almost entirely replaced by steel in building structures, cast irons have become an engineering material with a wide range of applications, including pipes, machine and car parts. (wikipedia.org)
  • Steel is a ductile material, which will behave elastically until it reaches yield (point 2 on the stress-strain curve), when it becomes plastic and will fail in a ductile manner (large strains, or extensions, before fracture at point 3 on the curve). (wikipedia.org)
  • It has similar structural properties to steel, although its strength varies significantly. (wikipedia.org)
  • Reinforced concrete is concrete in which steel reinforcement bars ("rebars"), plates or fibers have been incorporated to strengthen a material that would otherwise be brittle. (wikipedia.org)
  • composite
  • A TiC-TiB2-SiC ternary eutectic composite were synthesized via the floating zone method using TiC, TiB2 and SiC powders as starting materials. (scientific.net)
  • Because it has essentially zero strength in tension, it is almost always used as reinforced concrete, a composite material. (wikipedia.org)
  • significantly
  • The surface integrity can be significantly improved by introducing the ultrafine grained (UFG) layer due to the severe plastic deformation (SPD) effect during cryogenic machining. (asme.org)
  • If the diameter of the specimen is significantly reduced, the strength of the material appears substantially greater. (sme.org)
  • include
  • The tendency to walk is also preempted in various other ways, which include: Establishing a centering mark or feature before drilling, such as by: Casting, molding, or forging a mark into the workpiece Center punching Spot drilling (i.e., center drilling) Spot facing, which is machining a certain area on a casting or forging to establish an accurately located face on an otherwise rough surface. (wikipedia.org)
  • increase
  • Cutting fluid is commonly used to cool the drill bit, increase tool life, increase speeds and feeds, increase the surface finish, and aid in ejecting chips. (wikipedia.org)
  • The fluids can increase tool life, cutting speeds, and the quality of the finished surface. (wikipedia.org)
  • applications
  • This particular alloy's ability to hold polish made it useful as a light reflector or mirror material as well, which it continued to be used for into the twentieth century In the 1990s, autoparts manufacturer Federal Mogul began developing bismuth bronzes as an alternative to lead-containing bronzes because of increasing pressure on the removal of lead from both consumer and industrial applications. (wikipedia.org)
  • often
  • It is noteworthy that while the term heat treatment applies only to processes where the heating and cooling are done for the specific purpose of altering properties intentionally, heating and cooling often occur incidentally during other manufacturing processes such as hot forming or welding. (wikipedia.org)
  • common
  • The most common industrial application of these metals are as bearings, however the material has been in use since the late nineteenth century as kitchenware and mirrors. (wikipedia.org)
  • Common structural materials are: Wrought iron is the simplest form of iron, and is almost pure iron (typically less than 0.15% carbon). (wikipedia.org)
  • finish
  • Constraining the position of the drill bit using a drill jig with drill bushings Surface finish produced by drilling may range from 32 to 500 microinches. (wikipedia.org)
  • Diamond tools are used to achieve a superior surface finish (though they can only be used on non-ferrous materials). (wikipedia.org)
  • It is possible to have a surface finish range of 32 to 500 microinches, but typically the range is 63 to 200 microinches. (wikipedia.org)
  • Given the proper application method, fluid performance can be measured more effectively in the areas of surface finish, stock removal rate, wheel life, total power, and the normal force between the grinding wheel and the workpiece being ground. (sme.org)
  • Its colour, quality, and finish depend upon the complexity of the structure, the material used for the form, and the skill of the worker. (wikipedia.org)
  • typically
  • It should be understood that the govemmentally permitted use of small amounts of lead (Pb), as opposed to a lead (Pb)-free mandate, more readily enables the use of recycled materials, which are typically very difficult to ensure are entirely free of all lead (Pb). (sumobrain.com)
  • As a consequence, the processing time typically takes some minutes depending on the material, dimensions of the piece, configuration, and equipment capacity. (docplayer.net)
  • microinches
  • Surface finishes can range from 2 microinches (51 nm) to 125 microinches (3.2 μm), with typical finishes ranging from 8 to 32 microinches (0.20 to 0.81 μm). (wikipedia.org)
  • numerical
  • The nonlinear temperature-sensitive material behaviour is incorporated in our numerical simulations based on results obtained with split-Hopkinson pressure bar tests. (scientific.net)
  • metals
  • A metalloid is any chemical element which has properties in between those of metals and nonmetals, or that has a mixture of them. (wikipedia.org)