Transient model for the keyhole during laser welding

被引：79

作者：

Semak, VV ^{[1
]}

Bragg, WD

Damkroger, B

Kempka, S

机构：

[1] Penn State Univ, Appl Res Lab, State Coll, PA 16804 USA

[2] New Mexico State Univ, Dept Phys, Las Cruces, NM 88003 USA

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

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1999年 / 32卷 / 15期

关键词：

D O I：

10.1088/0022-3727/32/15/103

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A novel approach to simulating the dominant dynamic processes present during concentrated energy beam welding of metals is presented. A model for the transient behaviour of the front keyhole wall is developed. It is assumed that keyhole propagation is dominated by evaporation-recoil-driven melt expulsion from the beam interaction zone. Results from the model show keyhole instabilities consistent with experimental observations of metal welding, metal cutting and ice welding.

引用

页码：L61 / L64

页数：4

共 13 条

[1]

AFANASEV YV, 1967, ZH EKSP TEOR FIZ, V25, P639

[2]

Anisimov S.I., 1995, Instabilities in Laser-matter Interaction

[3]

ARATA Y, 1986, PLASMA ELECT LASER B, P392

[4]

BORN M, 1964, PRINCIPALS OPTICS

[5]

FABBRO R, 1995, P ICALEO 95, P979

[6] The simulation of front keyhole wall dynamics during laser welding [J].

Matsunawa, A ;

Semak, V .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1997, 30 (05) :798-809

[7]

MATSUNAWA A, 1997, UNPUB JOINT M SCI SA

[8]

Samarskii A. A., 1995, Computational Heat Transfer

[9] The role of recoil pressure in energy balance during laser materials processing [J].

Semak, V ;

Matsunawa, A .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1997, 30 (18) :2541-2552

[10]

Semak V.V., 1994, INT C APPL LAS EL, P641, DOI [10.2351/1.5058848, DOI 10.2351/1.5058848]

← 1 2 →