Bulletin_78

Pulsed Arc Welding

The subject of this Bulletin_78 was briefly dealt with before.

It was in a note published (2) in Issue 76 of Practical Welding Letter for December 2009. Click on PWL#076 to see it.

For years Ed Craig, the renowned world expert on Gas Metal Arc Welding, insisted that perfect results were achievable with standard equipment (at reasonable cost), provided weld expertise was available.

Mid October Bulletin

15 October 2012 - Resources on Pulsed Arc Welding - Bulletin_78

PWL#110B
Mid Month Bulletin No.78
15 October 2012

Bulletin_78 - Resources on Pulsed Arc Welding for exotic metals, for stainless steel, for savings and quality, for reducing heat input and warping, for thin aluminum applications, for reducing residual stresses, parameter optimization, experimental research, considerations for adopting pulsed arc welding, Optimization of Experimental Conditions and much more...

Jumping unprepared in adopting new "bells and whistles" equipment was held as a sure recipe for frustration.

It is refreshing to find out (see the third resource hereafter) that his mind is now appeased.

Undoubtedly this is due to the progress in electronic technology and to the carefully selected instances where, in his opinion, controlled waveform provides real advantages.

Like most of technological switch overs, also in this case thorough understanding, accurate preparation and a suitable learning curve should be dedicated to develop adequate schedules with measurable gains relative to the old way of welding.

Readers with experience in successful adapting pulsed arc to their regular production are urged to write a short note (to be published here) with their suggestions to our public, for improving performances.

Some of the published online resources referred here in Bulletin_78 can be downloaded at no cost. To benefit from the information there are no shortcuts: one should dedicate to learning the necessary time.

The references published in this Bulletin_78 are selected to provide useful knowledge to our readers.

Some of the sources are commercial companies, presenting their wares together with technical recommendations. No endorsement or recommendations of such offers is intended. Readers should check if such information meets their purposes and needs.

The addresses reported hereafter in this Bulletin_78 were live and correct at the time of their publication. There is no guarantee that they will always be so, because they are administered by the sources themselves and are under their control.

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If the information of Bulletin_78 is important to you, you may save the selected pages in a suitable folder on your Computer for easy reference. You are welcome to forward this page to those of your friends who may profit of this information.

Resources

Pulse welding eases exotic-metal fabrication
The Fabricator 1.

Pulsed GTAW for stainless steel
The Fabricator 2.

Pulsed MIG Welding
http://www.weldreality.com/pulsed_welding_fundamentals.htm

Pulse-On-Pulse GMAW (MIG) (4 pages)
Lincoln 1.

Pulsed Spray Metal Transfer (8 pages)
Lincoln 2.

Waveform Control Technology(TM) (8 pages)
Lincoln 3.

Pulsed MIG Welding Provides Increased Savings and Quality
Lincoln 4.

Pulsed MIG Improves Aluminum Welding Performance
Miller 1.

Axcess System™ with Accu-Pulse™ Pulsed MIG Technology
Miller 2.

Pulsed TIG Welding Reduces Heat Input and Warping on Stainless Steel
Miller 3.

Considerations for Switching to Pulsed MIG and Pulsed TIG Welding
in Thin Gauge Aluminum Applications
Miller 4.

The latest advancements in Pulse Welding Technology (2 pages)
F&MW1.

What you should know about Pulsed Mig Welding of Aluminum
F&MW2.

Modified Active Control of Metal Transfer and Pulsed GMAW of Titanium (8 pages)
AWS 1.

Experimental Approach to Selection of Pulsing Parameters in Pulsed GMAW (7 pages)
AWS 2.

Effects of TIG Pulse Welding Parameters (6 pages)
AWS 3.

Assessing the effects of GMAW-pulse parameters on arc power and weld heat input (5 pages)
AWS 4.

MIG Pulse Welding Principle (6 pages)
http://www.austwelding.com.au/Technical%20pages/migpulse.pdf

Arc voltage behavior of one drop per pulse mode in GMAW-P
(4 pages)
http://www.journalamme.org/papers_amme06/1184.pdf

Model Based Metal Transfer Control in pulsed gas metal arc welding (6 pages)(Price $15.00 - Member Price $12.00). Available from
ASM.

Welding Processes
BOC.

Pulsed Mig Welding
Direct Industry.

Synergic Regimes Optimization of Pulsed Mig Arc Welding
http://www.tcm.ugal.ro/TMB/2009/l77.pdf

Optimization of pulsed current gas tungsten arc welding process parameters to attain maximum tensile strength in AZ31B magnesium alloy (10 pages)
http://www.ysxbcn.com/upfile/soft/20110402/06-p0467.pdf

The effect of pulsed GTA Welding on the residual stress
of a stainless steel weldment (8 pages)
http://researcher.nsc.gov.tw/public/9700212/Data/292214582971.pdf

Essential Factors in Gas Metal Arc Welding (32 pages)
http://www.kobelco.co.jp/english/welding/events/files/2011GMAW.pdf

WELDEDIT Schedule Editor Manual (30 pages)
http://www.cweldtech.com/Manuals/Weld-Edit-Manual.pdf

Pulsed Current Gas Metal Arc Welding
under Different Shielding and Pulse Parameters (9 pages)
https://www.jstage.jst.go.jp/article/isijinternational/49/2/49_2_261/_pdf

Effect of Pulse Parameters
on Weld Quality in Pulsed Gas Metal Arc Welding: A Review (Abstract)
http://www.springerlink.com/content/j94317882539k406/

Optimization of Experimental Conditions of the Pulsed Current GTAW Parameters for Mechanical Properties of SDSS UNS S32760 Welds
Based on the Taguchi Design Method (Abstract)
http://link.springer.com/article/10.1007/s11665-011-0105-z

Where Pulse Waveforms Meet Excellence
Weld Sparks.

Fuzzy control of pulsed GTA welds by using real-time root bead image feedback
Neuron.

Taguchi Optimization of Pulsed Current GTA Welding Parameters
for Improved Corrosion Resistance of 5083 Aluminum Welds (Abstract)
http://adsabs.harvard.edu/abs/2012JMEP..tmp..247R

Pulsed Gas Metal Arc Welding (GMAW-P)
for Newer Challenges in Welding of Aluminum Alloys (8 pages)
http://eprints.qut.edu.au/6137/1/6137.pdf

Prediction of Weld Pool Geometry in Pulsed Current Micro Plasma Arc Welding of SS304L Stainless Steel Sheets (12 pages)
http://www.tuengr.com/V02/325-336.pdf

Effect of Pulse Parameters on Weld Quality in Pulsed Gas Metal Arc Welding: A Review (Abstract)
Research Gate.

Shifting to Pulsed MIG Process Lowers Total Welding Costs (3 pages)
WD.

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