Showing papers in "Journal of Materials Processing Technology in 2001"

TL;DR: In this paper, the authors present research strategies for bringing about a new age of magnesium by means of the vehicle modules drive train, interior, body and chassis, differentiated according to the time frame and conceivable likelihood of realisation.

TL;DR: In this paper, the influence of process parameters on the quality characteristics of the prototypes using Taguchi technique has been assessed and the results of the study and the conclusions arrived from it.

TL;DR: In this paper, the weldability of the non-weldable alloys by use of powder filler is explained for aerospace applications and an example of increased process stability during laser beam welding of aluminium is presented.

TL;DR: In this paper, a review and evaluation of magnesium use and applications in the transportation industry that can significantly contribute to the environmental conservation is presented, which relates to the basic characteristics of magnesium being 35% lighter than aluminum and is used as structural material for vehicles and aerospace applications.

TL;DR: In this article, the effect of deep cryogenic treatment (−196°C) on the properties of some tool steels was studied by means of both field tests on real tools and laboratory tests.

TL;DR: In this paper, the influence of operating parameters of electrical discharge machining of tungsten carbide on the machining characteristics was investigated in terms of the material removal rate, the relative wear ratio and the surface finish quality of the workpiece produced.

TL;DR: In this article, a dual laser scanning system in which YAG and CO 2 laser beams are offset a small amount from each other and scanned is proposed to solve the problems of deflection and cracking caused by rapid heating and quenching.

TL;DR: In this paper, the results of deep drawing tests with magnesium alloys AZ31B, AZ61B, and M1 showed very good formability in a temperature range between 200 and 250°C, and the influence of forming speed on limit drawing ratio has been investigated.

TL;DR: A review of available information on factors which contribute to poor wetting between ceramic phases, and liquid metals is presented in this article, focusing on aluminium, a common MMC matrix material.

TL;DR: In this paper, the surface roughness was measured using a Surtronic 3+ measuring instrument and the measured results were collected and analyzed with the aid of the commercial software packages MATLAB, BC++ and SPSS.

TL;DR: In this article, the authors used the experimental design of Taguchi method to determine the injection molding conditions, and the injection processes were simulated using the commercial software C-MOLD™.

TL;DR: In this article, an analysis of the ecological parameters of the cutting fluids and its influence on the machinability parameters is given, which is based on output parameters of production process considering also ecological norms.

TL;DR: In this article, uncoated cemented carbide tools were used for the turning of Ti-6Al-2Sn-4Zr-6Mo, and the experiments were carried out under dry cutting condition.

TL;DR: In this paper, a finite element to predict the residual stresses induced by shot peening in a metal part and to relate these stresses to Almen intensity is proposed; the aim is to provide the designer with a useful tool with which to choose the optimal treatment parameters with respect to the mechanical behaviour of the peened parts.

TL;DR: In this paper, a plan of experiments based on the techniques of Taguchi was designed and executed on controlled machining with cutting conditions prefixed in workpieces, and the roughness was evaluated on workpieces using two different profilometers.

TL;DR: In this paper, the influence of grain sizes on the processing of thin metal sheets was investigated in two different ways: first, by reduction of the sheet thickness at a constant grain size (investigated in tension), and secondly, by changing the grain size at constant sheet thickness, and the results showed that in both the experiments, the yield strength as well as the maximum load decrease with a decreasing number of grains over the thickness.

TL;DR: In this paper, an innovative approach to fabricating cast metal matrix composite (MMCs) is proposed in order to study the enhancement of wettability of SiC particles by the matrix alloy A359, a casting rig was specially designed, and tests carried out using the A359 matrix alloy, siC particles, and magnesium (as a wetting agent) Stirring of these mixtures was performed under several different conditions, and the effect of this stirring action on the wetability enhancement was studied.

TL;DR: In this article, the authors summarized a technological review of the hydroforming process from early years to very recent dates on various topics such as material, tribology, equipment, tooling, etc., so that other researcher at different parts of the world can use it for further investigations in this area.

TL;DR: Equal channel angular pressing (ECAP) was attempted at room temperature to refine grain sizes of six different commercial Al alloys, 1100, 2024, 3004, 5083, 6061 and 7075.

TL;DR: In this article, the design of metal prototypes which are then fabricated by EOS's direct metal laser sintering (DMLS) is described, and the dimensional accuracy, surface roughness, impact toughness, hardness, and strength of EOS parts are measured.

TL;DR: In this paper, the effects of N alloying through different processing and manufacturing routes on metallurgical, mechanical, corrosion and wear properties of high N-containing stainless steels have been studied.

TL;DR: In this article, a forming tool containing a freely rotating ball was developed and used to characterize the formability of fully annealed Al 1050 sheet in incremental forming, where various strain paths were applied to the sheet by imposing different tool paths and the major and minor strains of deformed grids around cracks were measured.

TL;DR: In this paper, annealing of the powder with MM treatment (MM powder), very fine oxide particles (Fe3O4) play an important role to keep the grain size fine through the effect of grain boundary pinning.

TL;DR: In this article, the total work done by a cutting tool in removing metal can be determined from the force components on the cutting tool and all of this work or energy is converted into heat which is dissipated into the chip, tool and workpiece material.

TL;DR: In this paper, the role of liquid nitrogen jet on tool wear and surface finish was investigated in plain turning of AISI 1060 steel at industrial speed-feed combination by two types of carbide inserts of different geometric configurations.

TL;DR: In this paper, an abductive network is adopted to construct a prediction model for surface roughness and cutting force, which is composed of a number of functional nodes, which are self-configured to form an optimal network hierarchy by using a predicted square error (PSE) criterion.

TL;DR: In this article, the effects of forming speed and temperature on the forming limit diagram (FLD) were investigated experimentally for a fine-grain Al-Mg alloy (5083-O) sheet by performing stretch-forming tests at various forming speeds (0.2-200mm-min−1) at several temperatures from 293 to 573

TL;DR: In this paper, the surface integrity of a high speed ball end milled gamma titanium aluminide, TiB2XD, was investigated on a Matsuura FX5 20,000-rpm, prismatic machining center using 6-mm diameter, coated tungsten carbide ball end tooling.

TL;DR: In this paper, a single leaf, variable thickness spring of glassfiber reinforced plastic (GFRP) with similar mechanical and geometrical properties to the multileaf steel spring was designed, fabricated (molded and hoop wound) and tested.

TL;DR: In this article, the failure mechanism and factors which affect the micro end mill were studied during machining of pure copper workpiece, and the machining operation were performed at various cutting speeds, depth of cuts and feed rates to identify the failure mechanisms using two different helix angles.