Optimisation of grolishing freeform surfaces with rigid and semi-rigid tools

Optimisation of grolishing freeform surfaces with rigid and semi-rigid tools
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使用刚性和半刚性工具优化抛光自由曲面

DOI:
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发表时间:
2016
期刊:
Astronomical Telescopes + Instrumentation
影响因子:
--
通讯作者:
C. Gray
C. Gray
中科院分区:
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文献类型:
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作者:
Guoyu Yu;Hsing;D. Walker;Xiao Zheng;Hongyu Li;C. Dunn;C. Gray

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在我们的E-ELT部分制造正式验收后,我们的目标是通过引入使用工业机器人的中间摸索程序来进一步加快批量生产,通过这一更快且并行的环节减少总加工时间。本文在刀具设计、刀具轨迹生成、刚性、半刚性刀具与非球面失配研究等方面取得了一定的研究成果。结果表明,中间空间频率的产生与磨粒大小成正比,与工件与刀具表面的失配程度成正比。采用主轴转速为30rpm的非牛顿材料刀具,成功地减小了中间空间误差。工艺参数的优化涉及到上述因素的综合影响研究。这些优化的参数将产生用于给定输入表面质量的参考的查找表。未来的工作可能包括更高的主轴速度,用于非牛顿刀具的摸索,寻找关于成形校正、更高的去除率和边缘控制的潜在应用。
After the formal acceptance of our fabrication of E-ELT segments, we aim to further accelerate the mass production by introducing an intermediate grolishing procedure using industrial robots, reducing the total process time by this much faster and parallel link. In this paper, we have presented research outputs on tool design, tool path generation, study of mismatch between rigid, semi-rigid tool and aspheric surface. It is indicated that the generation of mid-spatial frequency is proportional to the grit size and misfit between work piece and tool surfaces. Using a Non-Newtonian material tool with a spindle speed of 30 rpm has successfully reduce the mid-spatial error. The optimization of process parameters involve the study the combination effects of the above factors. These optimized parameters will result in a lookup table for reference of given input surface quality. Future work may include the higher spindle speed for grolishing with non- Newtonian tool looking for potential applications regarding to form correction, higher removal rate and edge control.
计算机控制抛光的过程自动化
DOI: 10.4028/www.scientific.net/amr.1136.684
发表时间: 2016
期刊: Advanced Materials Research
影响因子: --
作者:
Walker D
通讯作者: Walker D