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Nanda, T.P., Ghosh, A. Performance of patterned single-layer diamond grinding wheel in grinding of Al-SiC P composites with large infeed. Int J Adv Manuf …
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Electroplated single-layer grinding wheels, in spite of offering unique useful features like geometrical flexibility, large chip accommodation volume in the inter-grit space, etc., produce high transverse surface roughness on the ground surface of the workpiece. Non-participation of all the superabrasive particles (grits) attributes to this limiting factor.
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Electroplated single-layer grinding wheels, in spite of offering unique useful features like geometrical flexibility, large chip accommodation volume in the inter-grit …
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On Performance of Chemically Bonded Single-Layer CBM Grinding Wheel A. K. Chattopadhyay, L. Chollet, H. E. Hintermann (1) Received on January 15,1990 SUMMARY: Electroplated superabrasive wheels made of a single layer of CBN crystals have in general 60 to 80% of the grit height covered by the galvanic embedding layer for …
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Fig. 2 shows the kinematic process of the single-diamond grinding tests. The grinding tracks were generated with a wheel speed v of 20 m/s, axial infeed speed v ax of 200 mm/min, and increasing undeformed chip thickness a gmax by the inclination of the workpiece with an angle α. Each scratch was achieved in micrometer accurate using …
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In the end, the indigenously developed patterned grinding wheel was compared against a commercially procured competent single-layer grinding wheel while grinding the same Al-SiCP composite in high ...
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1. Introduction. Severe plastic deformation processes (i.e., surface mechanical grinding treatment (SMGT), surface mechanical attrition treatment (SMAT), severe torsional deformation (STD), and high-pressure torsion (HPT)) are the common methods to modify the properties of surface layer of metals via grain refinement [1], [2].If …
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In this paper, the single grain grinding under consideration of bond properties is developed. This method is used to define the boundary conditions at the …
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The invention discloses a manufacturing method and device for a single-layer abrasive particle grinding wheel. The method includes the following steps that firstly, a fixed-thickness structure is adjusted so that an unchangeable binding agent coating gap can be formed by the fixed-thickness structure and a to-be-coated work face of a grinding …
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For the single-layer brazed CBN wheel, the grinding temperature rises from 433 °C to 713 °C (by 65%). The reason for the above-mentioned variation phenomenon is that higher workpiece infeed speed or larger depth of cut always results in larger tangential force (Fig. 5). As a consequence, more heat flux enters the grinding zone, which …
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Grinding is a powdering or pulverizing process using the rock mechanical forces of impaction and attrition. The two main objectives for a grinding process are: To liberate …
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The latter, contain only a single layer of superabrasive grains (CBN or Diamond) secured to a metallic substrate via the electroplating or brazing processes [2,3,4]. The point grinding process is a subset of the broader group of grinding operations, which utilises miniature single layer superabrasive tools to accurately machine complex 3D …
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This study presents a comprehensive and comparative investigation on creep-feed grinding (CFG) of single crystal nickel-base turbine blade fir-tree roots with and without surface burn by using alumina abrasive wheels, in terms of tool wear, grinding force, temperature, and surface integrity. For both cases (i.e., with and without grinding …
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The research was based on the analysis of data obtained from measurements of single-layer grinding wheels using the replica technique. The adopted measurement methodology enables measurement of approximately the same (94% coverage) areas of the GWAS at four stages of grinding wheel operation. Errors that were computed related to the ...
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The authors present manufacturing methods and related principles, and explore the wear behaviour and mechanisms of single-layer brazed CBN abrasive tools, providing …
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The wear behavior of a single-layer electroplated cubic boron nitride (cBN) grinding wheel was investigated in creep feed grinding Inconel 718 narrow-deep-groove with a width of 2 mm. In this paper, the protrusion height of cBN grits on the side edge of the grinding wheel was measured by three-dimensional optical profiler, and a scanning …
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This study explored the performance of electroplated grinding tools electroplated with single and dual-layer diamond particles (DPs). These tools were fabricated through a three-step electroplating process, involving Ni-undercoating, Ni-diamond co-electroplating, and Ni–B strengthen-electroplating, on AISI 440C steel rods. …
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Grinding is one of the main machining methods of hard and brittle materials and it will inevitably produce a large number of damages and defects, such as …
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At the same time, Hood et al. [19] investigated the machinability of 0.8 vol.% TiB 2 + Ti-45Al-2Mn-2Nb intermetallic alloy in creep-feed grinding with a single-layer electroplated diamond wheel ...
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To achieve efficient grinding, a single-layer electroplated diamond grinding wheel with a size of φ15 × 12 mm and a grit size of 80# was used in the grinding test. In this paper, the process analysis of the rough grinding stage was mainly carried out. The purpose was to control the damage under the premise of ensuring efficiency in the ...
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During the operation of a single-layer grinding wheel (SLGW), irreversible changes occur on its active surface due to wear. The study of grinding-wheel microgeometry changes can be based on the measurement of the surface texture as well as the determination and analysis of its parameters. The article deals with the selection of suitable texture …
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Characterization of the grinding-induced SSD in silicon wafers is complex. Although a nanometer-deep cut induces a nanostructure 17 or amorphous layer 18,19 on a silicon wafer during grinding, a deeper cut induces SSCs. Of these three types of damage, SSCs are the most detrimental.
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They also clarify the scientific issues in the grinding performance of single-layer brazed CBN abrasive tools to improve machining efficiency and quality. The book will contribute to the development of aerospace engineering and inspire academic researchers and industrial engineers in the field of ultra-high precision machining, especially grinding.
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The as-synthesized single-layer metal–organic nanosheets are efficient electrocatalysts for the oxygen evolution reaction (OER) with a turnover frequency as high as 0.144 s −1 and 0.294 s −1 at overpotentials of 400 mV and 500 mV in neutral electrolyte media, respectively, which are higher than other heterogeneous catalysts.
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Figure 1: Four common wear modes in single layer superabrasive grinding wheels. Performance characteristics. Assuming a grinding process has been developed that results predominantly in micro-fracture …
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The research was based on the analysis of data obtained from measurements of single-layer grinding wheels using the replica technique. The adopted measurement methodology enables measurement of approximately the same (94% coverage) areas of the GWAS at four stages of grinding wheel operation. Errors that …
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Based on Eq. (1), the trajectory of a single grain during UAG is a 3D sinusoidal curve (as shown in Fig. 2).The effect of changes in abrasive grain trajectories on the grinding process is further illustrated in Fig. 3; compared to CG, interactions and overlapping of trajectories originating from different abrasive grains are significantly …
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This list was updated on 11 April, 2024 to ensure all of the best single-player games - including the most recent releases - are included. 25. Hitman 3. (Image credit: Square Enix) Developer: IO ...
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The causes of low profiling efficiency are as follows: when the multiple layering and layer-by-layer cutting method is used to tangentially profile a grinding wheel, with the continuous removal of the material on the grinding wheel's surface, an increasing amount of laser energy directly passes through the grinding wheel's surface, which ...
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In this study, we intend to explore grinding performances of single- and dual-layer DP composite deposit with an average DP size of 150 μm, referred to as D-150. The D-150 DPs were usually used as abrasives for coarse surface grinding in indus-trial applications. Tools with dierent secondary Ni undercoat
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