Advances in Manufacturing ›› 2019, Vol. 7 ›› Issue (3): 288-302.doi: 10.1007/s40436-019-00264-3

• • 上一篇    下一篇

Variation characteristic of drilling force and influence of cutting parameter of SiCp/Al composite thin-walled workpiece

Shu-Tao Huang1, Chao Li2,3, Li-Fu Xu3, Lin Guo3, Xiao-Lin Yu3   

  1. 1 School of Automobile and Traffic, Shenyang Ligong University, Shenyang 110159, People's Republic of China;
    2 School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, People's Republic of China;
    3 School of Mechanical Engineering, Shenyang Ligong University, Shenyang 110159, People's Republic of China
  • 收稿日期:2018-10-11 修回日期:2019-04-15 出版日期:2019-09-25 发布日期:2019-10-09
  • 通讯作者: Shu-Tao Huang E-mail:syithst@sylu.edu.cn
  • 基金资助:
    This work is supported by the National Natural Science Foundation of China (Grant No. 51775356), the Distinguished Professor Funding Project of Liaoning Province, and the Key Laboratory Basic Research Project of the Department of Education of Liaoning Province (Grant No. LZ2015063).

Variation characteristic of drilling force and influence of cutting parameter of SiCp/Al composite thin-walled workpiece

Shu-Tao Huang1, Chao Li2,3, Li-Fu Xu3, Lin Guo3, Xiao-Lin Yu3   

  1. 1 School of Automobile and Traffic, Shenyang Ligong University, Shenyang 110159, People's Republic of China;
    2 School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, People's Republic of China;
    3 School of Mechanical Engineering, Shenyang Ligong University, Shenyang 110159, People's Republic of China
  • Received:2018-10-11 Revised:2019-04-15 Online:2019-09-25 Published:2019-10-09
  • Contact: Shu-Tao Huang E-mail:syithst@sylu.edu.cn
  • Supported by:
    This work is supported by the National Natural Science Foundation of China (Grant No. 51775356), the Distinguished Professor Funding Project of Liaoning Province, and the Key Laboratory Basic Research Project of the Department of Education of Liaoning Province (Grant No. LZ2015063).

摘要: In this paper, the variation characteristic of the drilling force, and the influences of cutting speed, feed rate, and workpiece thickness on the drilling force, were evaluated when drilling a silicon carbide particle reinforced aluminum matrix (SiCp/Al) composite thin-walled workpiece with a high volume fraction. Under the condition that the workpiece thickness was less than the drill tip height, three characteristic stages of drilling force variation were proposed. The results indicate that there is a significant difference between the variations in the drilling force when drilling a thin-walled workpiece compared to thick-walled workpiece. When the chisel edge drills out the lower surface of the workpiece, there is an abrupt decrease in the thrust forces of the thin-walled and thick-walled workpieces. In addition, there is an abrupt decrease in the torque of the thick-walled workpiece, whereas that of the thinwalled workpiece increases. According to the thickness of the thin-walled workpiece, the instant of the abrupt decrease in the thrust force may lead or lag behind the theoretical instant at which the chisel edge reaches the lower surface of the workpiece without deformation. When drilling a thin-walled hole, the cutting speed has a slight influence on the thrust force, and there is a slight increase in the torque in accordance with an increase in the cutting speed. The thrust force and torque increase in accordance with an increase in the feed rate. When drilling a thinwalled workpiece with a thickness of 1 mm, the critical thickness of workpiece cracking decreases in accordance with an increase in the cutting speed, and increases in accordance with an increase in the feed rate. When drilling a thin-walled workpiece with a thickness of 0.5 mm, the concave deformation of the workpiece and the critical thickness of the workpiece cracking increase in accordance with an increase in the feed rate. However, the increment in the critical thickness of the workpiece cracking is less than that in the concave deformation of the workpiece.

The full text can be downloaded at https://link.springer.com/content/pdf/10.1007%2Fs40436-019-00264-3.pdf

关键词: SiCp/Al composites, Thin-walled workpiece, Drilling, Drilling force

Abstract: In this paper, the variation characteristic of the drilling force, and the influences of cutting speed, feed rate, and workpiece thickness on the drilling force, were evaluated when drilling a silicon carbide particle reinforced aluminum matrix (SiCp/Al) composite thin-walled workpiece with a high volume fraction. Under the condition that the workpiece thickness was less than the drill tip height, three characteristic stages of drilling force variation were proposed. The results indicate that there is a significant difference between the variations in the drilling force when drilling a thin-walled workpiece compared to thick-walled workpiece. When the chisel edge drills out the lower surface of the workpiece, there is an abrupt decrease in the thrust forces of the thin-walled and thick-walled workpieces. In addition, there is an abrupt decrease in the torque of the thick-walled workpiece, whereas that of the thinwalled workpiece increases. According to the thickness of the thin-walled workpiece, the instant of the abrupt decrease in the thrust force may lead or lag behind the theoretical instant at which the chisel edge reaches the lower surface of the workpiece without deformation. When drilling a thin-walled hole, the cutting speed has a slight influence on the thrust force, and there is a slight increase in the torque in accordance with an increase in the cutting speed. The thrust force and torque increase in accordance with an increase in the feed rate. When drilling a thinwalled workpiece with a thickness of 1 mm, the critical thickness of workpiece cracking decreases in accordance with an increase in the cutting speed, and increases in accordance with an increase in the feed rate. When drilling a thin-walled workpiece with a thickness of 0.5 mm, the concave deformation of the workpiece and the critical thickness of the workpiece cracking increase in accordance with an increase in the feed rate. However, the increment in the critical thickness of the workpiece cracking is less than that in the concave deformation of the workpiece.

The full text can be downloaded at https://link.springer.com/content/pdf/10.1007%2Fs40436-019-00264-3.pdf

Key words: SiCp/Al composites, Thin-walled workpiece, Drilling, Drilling force