Results 171 to 180 of about 9,072 (205)
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2023
The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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Experimental Study of Micro Deep Drawing for H62 Brass
Key Engineering Materials, 2011In this paper, the influence of grain size and blank hold force on micro deep drawing stress and displacement are studied by self-made device. The results show that drawing stress decreases and elongation rate increases with the increase of grain size, the concentrated force area of cylinder-shaped part is transferred from the area punch fillet to die ...
Guang Hua Lu +3 more
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Fatigue crack initiation life of fine grain brass H62
Theoretical and Applied Fracture Mechanics, 2010Fine grain alloys possess excellent properties entailing high strength and toughness. Fine brass H62 is made by re-crystallization with grain size ranging from 5 to 10 μm. Fatigue initiation life is investigated from specimens tested on Instron 1341 machine a frequency of 30 Hz.
M. Zheng +4 more
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Experimental Study of Hot Extrusion Micro Gear of Brass H62
Advanced Materials Research, 2011A new micro-forming method, combining a metal’s super-plastic behavior with hot extrudsion technology, has been developed for manufacturing micro-gear from brass H62. The micro-gear, which modulus m = 0.125mm, pressure angle α = 20°, number of teeth z = 6, tip diameter d = 1mm, was selected and its dies were designed with a better die approach angle ...
Xu Dong Zhou, Xiang Ru Liu
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Multi-Scale Numerical Simulation of H62 Brass for Hot-Extrusion Process
Advanced Materials Research, 2010Thermal deformation process of H62 brass is studied, multi-scale simulations of macro-forming property and microstructure distribution are carried out for the hot-extrusion process of double cups part with flange utilizing numerical simulation technology, the process parameters are determined and the microstructure of extruded parts is predicted.
Yan Hong Xiao, Chen Guo, Xiao Kang Tian
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Tribology International, 2020
Abstract The cylinder/valve plate friction pairs were proven to be subjected to wear and failure in axial piston pumps. The synergy method of surface micro-texturing and wet micro-blasting was put forward to enhance the tribological performance of H62 brass/38CrMoAl conjunctions.
Luanxia Chen +2 more
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Abstract The cylinder/valve plate friction pairs were proven to be subjected to wear and failure in axial piston pumps. The synergy method of surface micro-texturing and wet micro-blasting was put forward to enhance the tribological performance of H62 brass/38CrMoAl conjunctions.
Luanxia Chen +2 more
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Experiment and Finite Element Analysis Research on Surface Roughness in Micro-Grinding H62
Advanced Materials Research, 2015Micro-grinding is an important processing method in micro-manufacturing field. The influence factors of surface quality in micro-grinding are discussed in the article. The models of finite element analysis (FEA) in micro-grinding H62 with electroplated CBN micro-grinding tool were established.
Xue Long Wen +4 more
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Effects of Grain Refiner and Cooling Rate on Solidification Structure of H62 Brass
Advanced Materials Research, 2013In this paper, effects of different grain refiners on solidification structure of H62 brass under different cooling rates were investigate by macro corrosion, SEM and EDX analyses. Results of experiments indicate that the columnar crystal zone of H62 brass is completely eliminated and the grain size is reduced remarkably by 0.01%B.
Ge Wang Shuai, You Li, Zheng Hua Guo
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Cytometry Part B: Clinical Cytometry
AbstractThe Clinical and Laboratory Standards Institute (CLSI) H62—Validation of Assays Performed by Flow Cytometry guideline, released in 2021, provides recommendations for platform workflow and quality system essentials, instrument setup and standardization, assay development and optimization and fit‐for‐purpose analytical method validation.
Sara A. Monaghan +19 more
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AbstractThe Clinical and Laboratory Standards Institute (CLSI) H62—Validation of Assays Performed by Flow Cytometry guideline, released in 2021, provides recommendations for platform workflow and quality system essentials, instrument setup and standardization, assay development and optimization and fit‐for‐purpose analytical method validation.
Sara A. Monaghan +19 more
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Dissimilar Welding of H62 Brass-316L Stainless Steel Using Continuous-Wave Nd:YAG Laser
Materials and Manufacturing Processes, 2014Continuous-wave Nd:YAG laser welding of H62 brass and 316L stainless steel was studied using welded joints made with different overlap configurations. Optical and scanning electron microscopies, energy-dispersive X-ray spectroscopy, and microhardness testing were used to analyze the microstructures and mechanical properties of the joints.
Yang Li, Shengsun Hu, Junqi Shen, Bao Hu
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