Plasma Arc Augmented CO2 laser welding

Claus Bagger; Mikkel Andersen; Niels Frederiksen; Sigurdur Leifsson; Flemming Ove Olsen

Plasma Arc Augmented CO2 laser welding

Claus Bagger, Mikkel Andersen, Niels Frederiksen, Sigurdur Leifsson, Flemming Ove Olsen

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

In order to reduce the hardness of laser beam welded 2.13 mm medium strength steel CMn 250, a plasma arc has been used simultaneously with a 2.6 kW CO2 laser source. In a number of systematic laboratory tests, the plasma arc current, plasma gas flow and distance to the laser source were varied with all laser parameters fixed. The welds were quality assessed and hardness measured transversely to the welding direction in the top, middle and root of the seam. In the seams welded by laser alone, hardness values between 275 and 304 HV1 were measured, about the double of the base material, 150 HV1. With the addition of a plasma arc, the hardness could overall be reduced to between 200 and 220 HV1, i.e. about 27 percent. In the seam middle, the reduction was 36 percent.

Original language	English
Title of host publication	8th NOLAMP Conference
Editors	FO Olsen, J K Kristensen
Publisher	IPL
Publication date	2001
Publication status	Published - 2001
Event	8th Conference on Laser materials Processing in the Nordic Countries - Copenhagen, Denmark Duration: 13 Aug 2001 → 15 Aug 2001 Conference number: 8 http://www.atv-semapp.dk/ARR2001/ARR010813NOLAMP/8thNOLAMP_Conf_Info.html

Conference

Conference	8th Conference on Laser materials Processing in the Nordic Countries
Number	8
Country/Territory	Denmark
City	Copenhagen
Period	13/08/2001 → 15/08/2001
Internet address	http://www.atv-semapp.dk/ARR2001/ARR010813NOLAMP/8thNOLAMP_Conf_Info.html

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title = "Plasma Arc Augmented CO2 laser welding",

abstract = "In order to reduce the hardness of laser beam welded 2.13 mm medium strength steel CMn 250, a plasma arc has been used simultaneously with a 2.6 kW CO2 laser source. In a number of systematic laboratory tests, the plasma arc current, plasma gas flow and distance to the laser source were varied with all laser parameters fixed. The welds were quality assessed and hardness measured transversely to the welding direction in the top, middle and root of the seam. In the seams welded by laser alone, hardness values between 275 and 304 HV1 were measured, about the double of the base material, 150 HV1. With the addition of a plasma arc, the hardness could overall be reduced to between 200 and 220 HV1, i.e. about 27 percent. In the seam middle, the reduction was 36 percent.",

keywords = "Hybrid welding, Hardness reduction",

author = "Claus Bagger and Mikkel Andersen and Niels Frederiksen and Sigurdur Leifsson and Olsen, {Flemming Ove}",

year = "2001",

language = "English",

editor = "{FO Olsen, J K Kristensen}",

booktitle = "8th NOLAMP Conference",

publisher = "IPL",

note = "8th Conference on Laser materials Processing in the Nordic Countries, NOLAMP ; Conference date: 13-08-2001 Through 15-08-2001",

url = "http://www.atv-semapp.dk/ARR2001/ARR010813NOLAMP/8thNOLAMP_Conf_Info.html",

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TY - GEN

T1 - Plasma Arc Augmented CO2 laser welding

AU - Bagger, Claus

AU - Andersen, Mikkel

AU - Frederiksen, Niels

AU - Leifsson, Sigurdur

AU - Olsen, Flemming Ove

N1 - Conference code: 8

PY - 2001

Y1 - 2001

N2 - In order to reduce the hardness of laser beam welded 2.13 mm medium strength steel CMn 250, a plasma arc has been used simultaneously with a 2.6 kW CO2 laser source. In a number of systematic laboratory tests, the plasma arc current, plasma gas flow and distance to the laser source were varied with all laser parameters fixed. The welds were quality assessed and hardness measured transversely to the welding direction in the top, middle and root of the seam. In the seams welded by laser alone, hardness values between 275 and 304 HV1 were measured, about the double of the base material, 150 HV1. With the addition of a plasma arc, the hardness could overall be reduced to between 200 and 220 HV1, i.e. about 27 percent. In the seam middle, the reduction was 36 percent.

AB - In order to reduce the hardness of laser beam welded 2.13 mm medium strength steel CMn 250, a plasma arc has been used simultaneously with a 2.6 kW CO2 laser source. In a number of systematic laboratory tests, the plasma arc current, plasma gas flow and distance to the laser source were varied with all laser parameters fixed. The welds were quality assessed and hardness measured transversely to the welding direction in the top, middle and root of the seam. In the seams welded by laser alone, hardness values between 275 and 304 HV1 were measured, about the double of the base material, 150 HV1. With the addition of a plasma arc, the hardness could overall be reduced to between 200 and 220 HV1, i.e. about 27 percent. In the seam middle, the reduction was 36 percent.

KW - Hybrid welding

KW - Hardness reduction

M3 - Article in proceedings

BT - 8th NOLAMP Conference

A2 - null, FO Olsen, J K Kristensen

PB - IPL

T2 - 8th Conference on Laser materials Processing in the Nordic Countries

Y2 - 13 August 2001 through 15 August 2001

ER -

Plasma Arc Augmented CO2 laser welding

Abstract

Conference

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