Understanding thermal behavior in the LENS process

被引：263

作者：

Griffith, ML

Schlienger, ME

Harwell, LD

Oliver, MS

Baldwin, MD

Ensz, MT

Essien, M

Brooks, J

Robino, CV

Smugeresky, JE

Hofmeister, WH

Wert, MJ

Nelson, DV

机构：

[1] Sandia Natl Labs, Albuquerque, NM 87185 USA

[2] Sandia Natl Labs, Livermore, CA USA

[3] Vanderbilt Univ, Nashville, TN USA

[4] Stanford Univ, Stanford, CA 94305 USA

来源：

MATERIALS & DESIGN | 1999年 / 20卷 / 2-3期

关键词：

ferrous metals and alloys; lasers; microstructure;

D O I：

10.1016/S0261-3069(99)00016-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In direct laser metal deposition technologies, such as the laser engineered net shaping (LENS) process, it is important to understand and control the thermal behavior during fabrication. With this control, components can be reliably fabricated with desired material properties. This paper will describe the use of contact and imaging techniques to monitor the thermal signature during LENS processing. Development of an understanding of solidification behavior, residual stress, and microstructural evolution with respect to thermal behavior will be discussed. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：107 / 113

页数：7

共 9 条

[1]

[Anonymous], P SOL FREEF FABR S A

[2]

Griffith ML, 1998, SOL FREEFORM FABRIC, P89

[3]

Griffith ML, 1996, SOL FREEFORM FABRIC, P125

[4]

GRIFFITH ML, 1997, P RAP PROT MAN C 199

[5] NONCONTACT TEMPERATURE-MEASUREMENT OF A FALLING DROP [J].

HOFMEISTER, WH ;

BAYUZICK, RJ ;

ROBINSON, MB .

INTERNATIONAL JOURNAL OF THERMOPHYSICS, 1989, 10 (01) :279-292

[6] Determination of biaxial residual stresses by a holographic-hole drilling technique [J].

Makino, A ;

Nelson, DV ;

Fuch, EA ;

Williams, DR .

JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME, 1996, 118 (04) :583-588

[7]

ROBERTS G, 1998, TOOL STEELS, pCH13

[8]

SCHLIENGER ME, 1998, P 3 PAC RIM INT C AD, P1581

[9]

SMUGERESKY JE, 1997, P WORLD C POWD MET P, P33

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