Machinability of TiC-reinforced titanium matrix composites fabricated by additive manufacturing

被引：39

作者：

Qiao, Guowen ^{[1
]}

Zhang, Bi ^{[2
]}

Bai, Qian ^{[1
]}

Gao, Yingming ^{[1
]}

Du, Wei ^{[3
]}

Zhang, Yingwei ^{[4
]}

机构：

[1] Dalian Univ Technol, Minist Educ, Key Lab Precis & Nontradit Machining Technol, Dalian 116024, Peoples R China

[2] Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China

[3] Dalian Univ Technol, Sch Mech Engn, Dalian 116024, Peoples R China

[4] Shenyang Airplane Ind Grp Co Ltd, Shenyang 110034, Peoples R China

来源：

JOURNAL OF MANUFACTURING PROCESSES | 2022年 / 76卷

基金：

中国国家自然科学基金;

关键词：

Additive manufacturing; Milling; Microstructure; Machinability; TiC particle-reinforced titanium matrix composites; CHIP FORMATION MECHANISM; SURFACE QUALITY;

D O I：

10.1016/j.jmapro.2022.02.033

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Additive manufacturing (AM) of TiC particle-reinforced titanium matrix composites (TiC-TMCs) has promising applications in aircraft and aerospace, attributed to its advantages of near-net shaping for AM and the excellent mechanical properties for TiC-TMCs. However, the surface quality of AM produced parts is inferior to that of the conventionally formed parts. This study investigated the machinability for TiC-TMCs specimens prepared by AM. The microstructural characteristics of TiC after AM were analyzed. The effects of the microstructure on cutting force, machined surface morphology, chip formation, and tool wear were studied. The results showed that a varied set of AM parameters caused a different microstructure and thus different machinability of TiC-TMCs. Compared to the specimens with coarse dendritic TiC, the fine equiaxed TiC possessed better machined surface quality and lower tool wear and thus better machinability. This study is expected to further exploit the advantages of AM and promote precision manufacturing of TiC-TMCs parts.

引用

页码：412 / 418

页数：7

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