LIQUID-METAL EXPULSION DURING LASER IRRADIATION

被引：52

作者：

BASU, S

DEBROY, T

机构：

[1] Department of Materials Science and Engineering, Pennsylvania State University, University Park

来源：

JOURNAL OF APPLIED PHYSICS | 1992年 / 72卷 / 08期

关键词：

D O I：

10.1063/1.351452

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

During laser assisted materials processing such as welding, cutting, drilling, or surface alloying, the processing conditions are adjusted to either achieve or avoid liquid metal expulsion. Currently, there is no theoretical model to determine, from fundamental principles, the operating conditions for the initiation of liquid metal expulsion during laser irradiation. Processing conditions necessary for the initiation of liquid metal expulsion during pulsed laser irradiation have been investigated experimentally and theoretically. Lead, titanium, and stainless steel samples were irradiated by single and multiple pulses of varying pulse durations to investigate conditions for liquid metal expulsion. It is demonstrated that using theoretically computed transient spatial temperature profiles, and by balancing surface tension and recoil forces, the conditions for the initiation of liquid metal expulsion can be determined.

引用

页码：3317 / 3322

页数：6

共 20 条

[1]

ANISIMOV SI, 1967, SOV PHYS TECH PHYS-U, V11, P945

[2]

BATANOV VA, 1973, SOV PHYS JETP, V36, P2

[3]

Bellis J, 1980, LASERS OPERATION EQU

[4]

Carslaw H. S., 1986, CONDUCTION HEAT SOLI