Surface morphology in high-speed grinding of TMCs fabricated by selective laser melting

Qiao，Guowen1; Zhang，Bi2; Guo，Sai2; Bai，Qian1; Sun，Quanwei1; Zhang，Yingwei3

2023-07-07

10.1016/j.jmapro.2023.04.064

Journal of Manufacturing Processes   影响因子和分区

1526-6125

2212-4616

TiC-reinforced titanium matrix composites (TMCs) are typically difficult-to-machine materials. It is prospective to combine the advantages of selective laser melting (SLM) and high-speed grinding to manufacture TMCs parts. This study investigates the surface morphology in high-speed grinding of TMCs fabricated by SLM. Grinding experiments with 28.75–232.66 m/s are conducted. Two surface features are found in the ground surface of TMCs, i.e. smearing at low grinding speeds and scratch at high grinding speeds. Surface morphologies are evaluated based on fractal dimension FD and surface roughness Ra. The results show that the correlations between FD and Ra indicate the ground surface formation mechanisms of TMCs. It is found that submicron TiC generated in SLM cooperating with high grinding speed achieves a good surface quality in terms of reduced surface roughness and subsurface damages for TMCs, which could be beneficial to the fabrication of other metal matrix composites.

Fractal dimension Grinding Selective laser melting Surface morphology Titanium matrix composites

SCI ; EI

英语

其他

National Natural Science Foundation of China[52175381];Science, Technology and Innovation Commission of Shenzhen Municipality[KQTD20190929172505711];

Engineering

Engineering, Manufacturing

WOS:001003104100001

ELSEVIER SCI LTD

20231914053775

Fabrication ; Finite difference method ; Fractal dimension ; Grinding (machining) ; Melting ; Metallic matrix composites ; Morphology ; Selective laser melting ; Surface roughness ; Titanium ; Titanium carbide

Metallurgy and Metallography:531 ; Titanium and Alloys:542.3 ; Machining Operations:604.2 ; Reproduction, Copying:745.2 ; Chemical Operations:802.3 ; Inorganic Compounds:804.2 ; Mathematics:921 ; Numerical Methods:921.6 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

2-s2.0-85156126011

Scopus

1.State Key Laboratory of High-Performance Precision Manufacturing,Dalian University of Technology,Dalian,116024,China
2.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.Shenyang Airplane Industry Group Co.,Ltd,Shenyang,110034,China

Qiao，Guowen,Zhang，Bi,Guo，Sai,et al. Surface morphology in high-speed grinding of TMCs fabricated by selective laser melting[J]. Journal of Manufacturing Processes,2023,97:200-209.

Qiao，Guowen,Zhang，Bi,Guo，Sai,Bai，Qian,Sun，Quanwei,&Zhang，Yingwei.(2023).Surface morphology in high-speed grinding of TMCs fabricated by selective laser melting.Journal of Manufacturing Processes,97,200-209.

Qiao，Guowen,et al."Surface morphology in high-speed grinding of TMCs fabricated by selective laser melting".Journal of Manufacturing Processes 97(2023):200-209.