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Laser additive manufacturing of Zn porous scaffolds: Shielding gas flow, surface quality and densificationPeng Wen1,2,Yu Qin2,3,Yanzhe Chen2,3,Maximilian Voshage4,Johannes Henrich Schleifenbaum4,51... reduced to 250 αm from the design value 300 m. The poor surface quality and processing pores were resulted by the splashing particles included spatters and powders due to the recoil force of evaporation......
Effect of mechanical anisotropy on material removal rate and surface quality during polishing CdZnTe wafersLI Yana,JIE Wanqia,KANG Renkeb,and GAO Hangb a State Key laboratory of Solidification... on the material removal rate and surface quality were studied by polishing tests.There is a peak of frictional coefficient at the early stage of scratch,and increasing the vertical force will result......
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Effect of casting speed on surface quality of horizontal direct chill casting 7075 aluminum alloy ingotQingfeng ZHU ,Zhihao ZHAO,Jianzhong CUI,Xiangjie WANG and Ke QIN Key Laboratory... been produced by hor-izontal direct chill casting in different casting speed. The effect of the casting speed on the ingot surface and subsurface layer was studied by surface observation......
out at irradiation angles of 45? and 10?, respectively. The surface roughness and topography were measured to estimate the quality of surface finish. The results show that the ion irradiation is very... on the contact process is difficult to obtain high surface quality in size of sub-millimetres and surface roughness of several nano-meter due to the size of micro die. Therefore, the establishment of surface......
Effects of the microstructure of twin roll cast and hot rolled plates on the surface quality of presensitized platesYuan-Zhi Zhu1,2,Ya-Feng Zhang1,Chao-Qi Zhao2,Feng Zhou11. College of Mechanical...), and in the novel twin roll casting + cold rolling(TRC) process on the surface quality of presensitized(PS) plates was analyzed by optical microscopy(OM), scanning electron microscopy(SEM), and energy-dispersive X......
Establishment of water quality index (Na+, Ca2+) for purified water reused to zinc electrolysis process CHAI Li-yuan(柴立元), XIAO Hai-juan(肖海娟), WANG Yun-yan(王云燕), PEI Fei(裴 斐... experiments, and the water quality index of reused water was established. The results show that the conductivity of the solution and the current efficiency decrease as these two kinds of positive ions......
and important application value. As an important substrate material, stringent surface quality requirements, i.e. surface finish and flatness, are required. The use of CMP technique can produce high quality... surface quality requirements (i.e., finish and flatness) are required. The generation of high-quality surfaces with fine surface finish and low surface and subsurface damage is also critical......
Effects of low-frequency electromagnetic field on the surface quality of 7050 aluminum alloy ingots during the hot-top casting processXiang-jie Wang, Jian-zhong Cui, Yu-bo Zuo, Zhi-hao Zhao, and Hai... casting process. Some reasons for low-frequency electromagnetic field improving the surface quality, refining the structure of the ingot, and minimizing the thickness of the shell zone have been studied......
and removing more material[6], and polishing using minute particles on a wheel improves the accuracy of the machined workpieces. However, obtaining a high-quality surface is difficult when machining... required to obtain a nanoscale surface quality. 2 Theory and components of machining system 2.1 Polishing method using uniform multi-arrayed tool Conventional polishing tools consist of irregular......
