Effect of Cryogenic Grinding on Fatigue Life of Additively Manufactured Maraging Steel

被引：22

作者：

Balan, Arunachalam S. S. ^{[1
]}

Chidambaram, Kannan ^{[2
]}

Kumar, Arun V. ^{[3
]}

Krishnaswamy, Hariharan ^{[4
]}

Pimenov, Danil Yurievich ^{[5
]}

Giasin, Khaled ^{[6
]}

Nadolny, Krzysztof ^{[7
]}

机构：

[1] Natl Inst Technol Karnataka, Dept Mech Engn, Mangaluru 575025, India

[2] Vellore Inst Technol, Sch Mech Engn, Dept Automot Engn, Vellore 632014, Tamil Nadu, India

[3] Vellore Inst Technol, Sch Mech Engn, Dept Mfg Engn, Vellore 632014, Tamil Nadu, India

[4] Indian Inst Technol Madras, Dept Mech Engn, Chennai 600025, Tamil Nadu, India

[5] South Ural State Univ, Dept Automated Mech Engn, Lenin Prosp 76, Chelyabinsk 454080, Russia

[6] Univ Portsmouth, Sch Mech & Design Engn, Portsmouth PO1 3DJ, Hants, England

[7] Koszalin Univ Technol, Fac Mech Engn, Dept Prod Engn, Raclawicka 15-17, PL-75620 Koszalin, Poland

来源：

MATERIALS | 2021年 / 14卷 / 05期

关键词：

maraging steel; additive manufacturing; cryogenic grinding; residual stress; surface roughness; fatigue; microhardness; LUBRICATION TECHNIQUES; SURFACE-ROUGHNESS; RESIDUAL-STRESS; HEAT-TREATMENT; CYCLE FATIGUE; IMPROVEMENT; PARAMETERS; INTEGRITY; STRENGTH; BEHAVIOR;

D O I：

10.3390/ma14051245

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Additive manufacturing (AM) is replacing conventional manufacturing techniques due to its ability to manufacture complex structures with near-net shape and reduced material wastage. However, the poor surface integrity of the AM parts deteriorates the service life of the components. The AM parts should be subjected to post-processing treatment for improving surface integrity and fatigue life. In this research, maraging steel is printed using direct metal laser sintering (DMLS) process and the influence of grinding on the fatigue life of this additively manufactured material was investigated. For this purpose, the grinding experiments were performed under two different grinding environments such as dry and cryogenic conditions using a cubic boron nitride (CBN) grinding wheel. The results revealed that surface roughness could be reduced by about 87% under cryogenic condition over dry grinding. The fatigue tests carried out on the additive manufactured materials exposed a substantial increase of about 170% in their fatigue life when subjected to cryogenic grinding.

引用

页码：1 / 16

页数：16

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