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| 1 | 基于FDM成型制件表面质量实验研究显示文摘目的研究熔融挤压快速成型的支撑工艺,提高快速成型制件精度.方法以汽车门把手为成型零件进行实验,分析成型支撑的重要工艺参数W的作用,通过不同支撑栅格宽度值对被成型零件的表面粗糙度的影响和不同环境温度对被成型零件表面硬度的影响,定量分析了FDM成型方法对被成型件表面质量的影响程度.结果用标准塑料表面粗糙度仪测量成型件的表面粗糙度,得出了在不同栅格宽度数值下成型件的粗糙度变化曲线,当支撑栅格宽度W为2 mm时,被成型件表面粗糙度可达12μm以上;当环境温度较高或较低时,被成型件表面硬度都较小,当环境温度在16~20℃时,表面硬度可高达40D.结论支撑栅格宽度W与成型件的表面粗糙度的数值成正比关系;环境温度过低或过高都会使被成型件表面硬度降低,最佳环境温度在16~20℃为宜. | 穆存远 柴宇 吕明 | 2015 | 沈阳建筑大学学报(自然科学版)2015，31，3： | 7 |
| 2 | Wear characteristics of Ⅴ shape diamond tool for micro prism pattern with Al alloys显示文摘The ultra-precision machining process using a single crystal diamond tool has been mainly used for machining molds of optical components.Since the micro patterns of various shapes having excellent surface roughness can be machined by using ultra-precision machine tools,the micro pattern on a large light guide plate (LGP) is mainly machined using a diamond tool.The tool wear occurs due to long machining distances and time while machining a large-area LGP mold.The deformation and dimensional error of micro pattern are caused by tool wear,as a result,the light efficiency of LGP declines.The characteristics of tool wear should be analyzed in order to precisely machine large-area LGP mold from all sorts of materials.The experiments were performed in order to compare wear characteristics of a V90° diamond tool using Al3003,5052,6061 and 7075.The prism pattern of depth 10 μm was machined in order to analyze characteristics of tool wear according to machining distances (0.5,1 and 1.5 km).The effects of tool wear on pattern shape were analyzed by applying overlapped cutting depths (Rough machining is (10+8+7) μm and Finish machining is (5+3+2+1) μm) by continuously machining a prism pattern of W shape of 25 μm in depth. | Eun-Suk PARK Tae-Jin JE Hwan-Jin CHOI Eun-Chae JEON Myung-Chang KANG | 2012 | 中国有色金属学会会刊:英文版2012，22，S3： | 2 |
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