Experimental Study on Mill-Grinding of High Volume Fraction SiCp/Al Metal Matrix Composites

LI Xun; BAI Fan; FU Yu; CUI Wei

doi:10.16080/j.issn1671-833x.2017.1/2.024

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Experimental Study on Mill-Grinding of High Volume Fraction SiCp/Al Metal Matrix Composites

更新时间：2025-10-30

- Experimental Study on Mill-Grinding of High Volume Fraction SiCp/Al Metal Matrix Composites
- Aeronautical Manufacturing Technology Vol. 60, Issue 1/2, (2017)
- 作者机构：
  
  1. 北京航空航天大学机械工程及自动化学院,北京,100191
  2. 中国核电工程有限公司,北京,100840
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2017.1/2.024
  CLC：
- Published：2017
- 稿件说明：
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李　勋，柏　帆，付　余，崔　伟. 高体积比铝基SiC复合材料的铣磨试验研究*[J]. 航空制造技术, 2017, 60(1/2): 24-28. LI Xun1, BAI Fan1, FU Yu1, CUI Wei2. Experimental Study on Mill-Grinding of High Volume Fraction SiCp/Al Metal Matrix Composites. Aeronautical Manufacturing Technology, 2017, 60(1/2): 24-28.

LI Xun, BAI Fan, FU Yu, et al. Experimental Study on Mill-Grinding of High Volume Fraction SiCp/Al Metal Matrix Composites[J]. Aeronautical Manufacturing Technology, 2017, 60(1/2).
李　勋，柏　帆，付　余，崔　伟. 高体积比铝基SiC复合材料的铣磨试验研究*[J]. 航空制造技术, 2017, 60(1/2): 24-28. LI Xun1, BAI Fan1, FU Yu1, CUI Wei2. Experimental Study on Mill-Grinding of High Volume Fraction SiCp/Al Metal Matrix Composites. Aeronautical Manufacturing Technology, 2017, 60(1/2): 24-28. DOI： 10.16080/j.issn1671-833x.2017.1/2.024.

LI Xun, BAI Fan, FU Yu, et al. Experimental Study on Mill-Grinding of High Volume Fraction SiCp/Al Metal Matrix Composites[J]. Aeronautical Manufacturing Technology, 2017, 60(1/2). DOI： 10.16080/j.issn1671-833x.2017.1/2.024.

摘要

为了改善高体积比铝基SiC 复合材料的可加工性，提高加工效率，本文对高体积比铝基SiC 复合材料进行了平面铣磨加工试验研究。试验结果表明，高体积比铝基SiC 复合材料在铣磨加工中主要表现为脆性材料的特性，电镀金刚石砂轮在磨削过程中不会出现磨屑粘附现象。SiC 颗粒的破损程度是影响表面粗糙度的主要因素，并且在相同磨削参数和条件的情况下随着颗粒的破损程度、砂轮粒度的增大和进给速度vf 的降低，磨削表面的粗糙度值会逐渐减小。在给定其他试验参数的情况下，120# 的φ 8mm 电镀砂轮适合进行粗磨，并且磨削的材料去除率能够达到2400mm3/min，同时进给抗力F z 小于25N，磨宽抗力F x 和磨深抗力F y 小于15N。使用230# 的φ 8mm 电镀砂轮进行精磨能够保证表面形成率达到6400mm2/min，并使表面粗糙度优于R a0.4μm。

Abstract

Based on analyzing the material properties and grinding mechanism

the mill-grinding process is presented to machine high volume fraction SiCp/Al MMCs. The experimental results show that 65% volume fraction SiCp/Al MMCs presents the machinability of brittle material. Meanwhile

the electroplated diamond wheel will not be smeared with soft aluminum to lose machinability. The broken degree of SiC particles is the main influencing factor of surface roughness. R a value decreases gradually with increasing of disintegrated degree

wheel’s grit number and reducing of feed speed. Under the given experimental conditions

120# φ 8mm electroplated diamond wheel is very suitable for rough machining and MRR can be improved to 2400mm3/min with parameters optimized. At the same time

F z is not more than 25N and F x

F y are not more than 15N. The finishing SFR can be reached 6400mm2/min utilizing 230# φ 8mm electroplated diamond wheel under the premise of surface roughness less than R a0.4μm.

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