Effect of energy density and feeding speed on micro-holes drilling in SiC/SiC composites by picosecond laser

Yongsheng Liu; Jing Wang; Weinan Li; Chunhui Wang; Qing Zhang; Xiaojun Yang; Laifei Cheng

doi:10.1007/s00170-015-7844-1

Effect of energy density and feeding speed on micro-holes drilling in SiC/SiC composites by picosecond laser

Yongsheng Liu, Jing Wang, Weinan Li, Chunhui Wang, Qing Zhang, Xiaojun Yang, Laifei Cheng

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

Picosecond laser machining is an important modern technology for materials with high hardness. In this paper, micro-holes with several hundred micrometer diameter were drilled in SiC/SiC composite using picosecond laser, and the quality of the micro-holes under different machining parameters was investigated in detail. The results indicated that energy density and feeding speed had remarkable effect on the micro-hole quality. The roundness of the micro-holes on the laser entry side was rarely affected by energy density and feeding speed. However, the roundness of the micro-holes on the laser exit side and micro-hole diameters along processing direction were quite sensitive to the energy density and feeding speed. Feeding speed had little influence on the quality of drilling holes, except for more debris on the entry side with 11.2 μm/s feeding speed.

Original language	English
Pages (from-to)	1917-1925
Number of pages	9
Journal	International Journal of Advanced Manufacturing Technology
Volume	84
Issue number	9-12
DOIs	https://doi.org/10.1007/s00170-015-7844-1
State	Published - 1 Jun 2016

Keywords

Energy density
Feeding speed
Picosecond laser
SiC/SiC composite

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10.1007/s00170-015-7844-1

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title = "Effect of energy density and feeding speed on micro-holes drilling in SiC/SiC composites by picosecond laser",

abstract = "Picosecond laser machining is an important modern technology for materials with high hardness. In this paper, micro-holes with several hundred micrometer diameter were drilled in SiC/SiC composite using picosecond laser, and the quality of the micro-holes under different machining parameters was investigated in detail. The results indicated that energy density and feeding speed had remarkable effect on the micro-hole quality. The roundness of the micro-holes on the laser entry side was rarely affected by energy density and feeding speed. However, the roundness of the micro-holes on the laser exit side and micro-hole diameters along processing direction were quite sensitive to the energy density and feeding speed. Feeding speed had little influence on the quality of drilling holes, except for more debris on the entry side with 11.2 μm/s feeding speed.",

keywords = "Energy density, Feeding speed, Picosecond laser, SiC/SiC composite",

author = "Yongsheng Liu and Jing Wang and Weinan Li and Chunhui Wang and Qing Zhang and Xiaojun Yang and Laifei Cheng",

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TY - JOUR

T1 - Effect of energy density and feeding speed on micro-holes drilling in SiC/SiC composites by picosecond laser

AU - Liu, Yongsheng

AU - Wang, Jing

AU - Li, Weinan

AU - Wang, Chunhui

AU - Zhang, Qing

AU - Yang, Xiaojun

AU - Cheng, Laifei

PY - 2016/6/1

Y1 - 2016/6/1

N2 - Picosecond laser machining is an important modern technology for materials with high hardness. In this paper, micro-holes with several hundred micrometer diameter were drilled in SiC/SiC composite using picosecond laser, and the quality of the micro-holes under different machining parameters was investigated in detail. The results indicated that energy density and feeding speed had remarkable effect on the micro-hole quality. The roundness of the micro-holes on the laser entry side was rarely affected by energy density and feeding speed. However, the roundness of the micro-holes on the laser exit side and micro-hole diameters along processing direction were quite sensitive to the energy density and feeding speed. Feeding speed had little influence on the quality of drilling holes, except for more debris on the entry side with 11.2 μm/s feeding speed.

AB - Picosecond laser machining is an important modern technology for materials with high hardness. In this paper, micro-holes with several hundred micrometer diameter were drilled in SiC/SiC composite using picosecond laser, and the quality of the micro-holes under different machining parameters was investigated in detail. The results indicated that energy density and feeding speed had remarkable effect on the micro-hole quality. The roundness of the micro-holes on the laser entry side was rarely affected by energy density and feeding speed. However, the roundness of the micro-holes on the laser exit side and micro-hole diameters along processing direction were quite sensitive to the energy density and feeding speed. Feeding speed had little influence on the quality of drilling holes, except for more debris on the entry side with 11.2 μm/s feeding speed.

KW - Energy density

KW - Feeding speed

KW - Picosecond laser

KW - SiC/SiC composite

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ER -

Effect of energy density and feeding speed on micro-holes drilling in SiC/SiC composites by picosecond laser

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Keywords

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