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,which inhabited the growth of atomic beams.Reverse pulse currents eliminated concentration polarization and dissolved some surface boss of atomic beams.The solution of W and P atoms within Ni grains......
of small boss with nodulation shape appearing on the surface of nano-composite coatings. Key words:pulse electrodepositon; nano-composite coatings; deposition rate; microhardness; microstructure......
be drawn successfully on that basis.Tested by hydrostatic extrusion and drawing process, the boss ratios of the copperclad aluminum composite rods were maintained a relatively stable scope of about......
can analyze the temperature field here only. The structures of the spline bush, the outer bush and the flywheel boss are all axisymmetrical. In the cylindrical coordinates system, the temperature has... bush and the wheel boss (referred to as conduction heat tube), the temperature distillation function T(r, z) here must meet the differential equation: Since the friction heat generated between......
a pure copper (99.97% in mass fraction) bar for SPRB. The initial grain size of the sample was about 75 μm. In order to increase the pressure induced by burnishing tool, a boss (1 mm in width and 6 mm... on the lathe tailstock and applied a given preload on the boss. When the SPRB began, the roller rotated at a high speed to decrease the height of boss rapidly, as shown in Fig. 1(b). The process......
量密度分布计算,如图12所示. 由图12可知:主要存在3个能量密度峰值,前2个对应的便是凸台形不平顺的内嵌位置,而第3个能量密度峰值在里程点178 m附近,此处波形特征在一定程度上也符合凸台不平顺波形特征(见图11). 图10 凸台形不平顺的波形特征提取 Fig. 10 Abstraction of waveform features of boss irregularity 图11 内嵌凸台波形的轨道不平顺序列 Fig. 11 Track irregularity series embeded with boss irregularities 图12 凸台形不平顺的提取 Fig. 12 Abstracting results towards boss irregularities 由上述2个分析实例可知本文提出......
and the distribution is very uneven. In the meantime, there appear a lot of small boss with nodulation shape on the composites surface. 3.4 Influence of SiO2 concentrations in bath on microhardness of composites Fig.6..., there appear a lot of small boss with nodulation shape on the composite surface. References [1] EL-SHERIK A M, ERB U. Adhesion and corrosion performance of nanocrystalline Ni coatings [J]. Plating and Surface......
was proposed to thicken the boss of the dome. Firstly, the boss was deformed to a diameter smaller than the desired. The boss was then modified to obtain a greater boss diameter. The experimental results indicated that the proposed process could provide a greater boss thickness than conventional spinning. YANG et al [56] experimentally studied the effects of heating temperature, feed rate and half......
using inner set drawbar of tube end, including polyurethane ring, inner set drawbar with screw and boss at both ends, compression ring and nuts. Placing the assemble structure of these parts in tube......
process of spur gear with boss and its numerical simulation[J]. Journal of Shanghai Jiaotong University, 2009, 43(9): 1494-1497. [9] CHOI J C, CHOI Y. Precision forging of spur gears with inside relief[J......
