The effect of surface tension on microjoining

G. A. Knorovsky; D. O. Maccallum; R. A. Roach; V. V. Semak

The effect of surface tension on microjoining

G. A. Knorovsky
, D. O. Maccallum
, R. A. Roach
, V. V. Semak

Nuclear Science & Technology

Research output: Contribution to conference › Paper › peer-review

Abstract

The recoil force created by a highly focused laser or electron beam produces a keyholing effect at intensities of several kW/mm ². Recent calculations indicated that at small beam diameters needed for true microwelding, this force may effectively cause drilling upon the onset of melting. These calculations neglected surface tension, which at radii of curvature <10 μm produces restraining forces of >1 bar. In this work we will present efforts at combining dynamic modeling which treats surface tension, validation experiments and determination of practical thresholds for very small welds.

Original language	English
Pages	62-66
Number of pages	5
State	Published - 2005
Event	Joining of Advanced and Specialty Materials VII - Columbus, OH, United States Duration: Oct 18 2004 → Oct 20 2004

Conference

Conference	Joining of Advanced and Specialty Materials VII
Country/Territory	United States
City	Columbus, OH
Period	10/18/04 → 10/20/04

Cite this

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title = "The effect of surface tension on microjoining",

abstract = "The recoil force created by a highly focused laser or electron beam produces a keyholing effect at intensities of several kW/mm 2. Recent calculations indicated that at small beam diameters needed for true microwelding, this force may effectively cause drilling upon the onset of melting. These calculations neglected surface tension, which at radii of curvature <10 μm produces restraining forces of >1 bar. In this work we will present efforts at combining dynamic modeling which treats surface tension, validation experiments and determination of practical thresholds for very small welds.",

author = "Knorovsky, \{G. A.\} and Maccallum, \{D. O.\} and Roach, \{R. A.\} and Semak, \{V. V.\}",

year = "2005",

language = "English",

pages = "62--66",

note = "Joining of Advanced and Specialty Materials VII ; Conference date: 18-10-2004 Through 20-10-2004",

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TY - CONF

T1 - The effect of surface tension on microjoining

AU - Knorovsky, G. A.

AU - Maccallum, D. O.

AU - Roach, R. A.

AU - Semak, V. V.

PY - 2005

Y1 - 2005

N2 - The recoil force created by a highly focused laser or electron beam produces a keyholing effect at intensities of several kW/mm 2. Recent calculations indicated that at small beam diameters needed for true microwelding, this force may effectively cause drilling upon the onset of melting. These calculations neglected surface tension, which at radii of curvature <10 μm produces restraining forces of >1 bar. In this work we will present efforts at combining dynamic modeling which treats surface tension, validation experiments and determination of practical thresholds for very small welds.

AB - The recoil force created by a highly focused laser or electron beam produces a keyholing effect at intensities of several kW/mm 2. Recent calculations indicated that at small beam diameters needed for true microwelding, this force may effectively cause drilling upon the onset of melting. These calculations neglected surface tension, which at radii of curvature <10 μm produces restraining forces of >1 bar. In this work we will present efforts at combining dynamic modeling which treats surface tension, validation experiments and determination of practical thresholds for very small welds.

UR - https://www.scopus.com/pages/publications/32144442193

M3 - Paper

AN - SCOPUS:32144442193

SP - 62

EP - 66

T2 - Joining of Advanced and Specialty Materials VII

Y2 - 18 October 2004 through 20 October 2004

ER -

The effect of surface tension on microjoining

Abstract

Conference

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