Effect of Scanning Speed on Forming Defects and Properties of Selective Laser Melted 316L Stainless Steel Powder

被引：7

作者：

Ma Yingyi ^{[1
]}

Liu Yude ^{[1
]}

Shi Wentian ^{[1
]}

Wang Peng ^{[1
]}

Qi Bin ^{[1
]}

Yang Jin ^{[1
]}

Han Dong ^{[1
]}

机构：

[1] Beijing Technol & Business Univ, Sch Mat Sci & Mech Engn, Beijing 100048, Peoples R China

来源：

LASER & OPTOELECTRONICS PROGRESS | 2019年 / 56卷 / 10期

关键词：

laser technique; selective laser melting; high speed; forming defect; microstructure; mechanical properties; MECHANICAL-PROPERTIES; MICROSTRUCTURE; COMPONENTS; PARAMETERS;

D O I：

10.3788/LOP56.101403

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The 316L stainless steel powder is formed by the selective laser melting technique, and the effects of scanning speed and hatch space on the formation specimen arc investigated. When the laser power is 380 W, the layer thickness is 50 mu m, the hatch space is 90-130 mu m, and the scanning speed is 750 mm. s(-1), the density of the formation specimen is up to 99. 99%, and the yield strength, tensile strength, and elongation arc 625 MPa, 537 MPa, and 38%, respectively. The scanning speed strongly influences the defect formation in the specimens. As for the formation samples, their mechanical properties can be improved and the grains can be refined by suitably increasing the scanning speed.

引用

页数：10

共 29 条

[1] Microstructure and Fracture Behavior of 316L Austenitic Stainless Steel Produced by Selective Laser Melting [J].

Casati, R. ;

Lemke, J. ;

Vedani, M. .

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2016, 32 (08) :738-744

[2]

CHANG Q, 2016, CHINESE J LASERS, V43

[3]

CHI HB, 2016, CHINESE J LASERS, V47

[4]

Duan Ran-xi, 2018, Chinese Journal of Nonferrous Metals, V28, P1568, DOI 10.19476/j.ysxb.1004.0609.2018.08.10

[5] Effect of real-time cooling rate on microstructure in Laser Additive Manufacturing [J].

Farshidianfar, Mohammad H. ;

Khajepour, Amir ;

Gerlich, Adrian P. .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2016, 231 :468-478

[6] Influence of defects on mechanical properties of Ti-6Al-4 V components produced by selective laser melting and electron beam melting [J].

Gong, Haijun ;

Rafi, Khalid ;

Gu, Hengfeng ;

Ram, G. D. Janaki ;

Starr, Thomas ;

Stucker, Brent .

MATERIALS & DESIGN, 2015, 86 :545-554

[7] Effects of processing parameters on consolidation and microstructure of W-Cu components by DMLS [J].

Gu, Dongdong ;

Shen, Yifu .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 473 (1-2) :107-115

[8] Analysis of laser-melt pool-powder bed interaction during the selective laser melting of a stainless steel [J].

Gunenthiram, Valerie ;

Peyre, Patrice ;

Schneider, Matthieu ;

Dal, Morgan ;

Coste, Frederic ;

Fabbro, Remy .

JOURNAL OF LASER APPLICATIONS, 2017, 29 (02)

[9] Balling behavior of stainless steel and nickel powder during selective laser melting process [J].

Li, Ruidi ;

Liu, Jinhui ;

Shi, Yusheng ;

Wang, Li ;

Jiang, Wei .

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2012, 59 (9-12) :1025-1035

[10] 316L Stainless Steel with Gradient Porosity Fabricated by Selective Laser Melting [J].

Li, Ruidi ;

Liu, Jinhui ;

Shi, Yusheng ;

Du, Mingzhang ;

Xie, Zhan .

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2010, 19 (05) :666-671

← 1 2 3 →