AWS - Welding Journal

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Welding Journal, January 2009

info:
Welding Journal, January 2009
• Volume 88 • Number 1
American Welding Society
English
Pages: 128
PDF 9.53 MB

The Welding Journal, a major monthly magazine specifically serving the welding and manufacturing industries is mailed to all AWS Members. The publication includes authoritative articles that can help your business and professional development, as well as news, "how-to" stories, welding research, advertisements, and much more. Winner of more than 60 editorial and design awards, including the 1999 Florida Magazine Association award for "Best In-Depth Reporting".

Some of the most active and influential buyers in industry
WJ readers have a long-term commitment to welding and metalworking: The average Welding Journal reader has been in the welding and metalworking industry for 14 years, and 62% have been in the industry for more than 15 years

89 Years as the Authority
in Metal Fabrication

We Were There through
Thick and Thin

The Welding Journal has been published continually since 1922 - an unmatched 83-year link to all types of metal fabrication and construction. We were publishing when welding was in its infancy, and we provided first-hand reporting of every technological development since. Our author list reads like a Who’s Who in metal joining, and our articles are revered throughout the world for their technical depth and accuracy. There are many newcomers to the field of weld fabrication, but there is only one magazine that has seen it all. We’re the one you can count on.

Each month the WELDING JOURNAL delivers news of the welding and metal fabricating industry. Stay informed on the latest products, trends, technology and events via in-depth articles, full-color photos and illustrations, and timely, cost-saving advice. Also featured are articles and supplements on related activities, such as testing and inspection, maintenance and repair, design, training, personal safety and brazing and soldering.

An AWS membership benefit, the award-winning Welding Journal is also available through an annual subscription of 12 issues.
Features

32 Examining the Mechanical Properties of High-Strength Steel
Weld Metals
Proper understanding of the relationship between chemistry
and weld metal properties will aid the development of
consumables and processes
J. E. Ramirez
40 Making Better Gas Metal Arc Welds
Proper equipment, good technique, and correct machine
settings all go hand in hand in making good welds
A. Monk and G. Bauer
44 The 2008 AWS Expo in Review
The 2008 AWS Welding Show proved to be a technology
bonanza
A. Cullison, K. Campbell, and M. R. Johnsen
52 Pulsed Technology Increases Cladding Travel Speed
A pulsed gas metal arc welding system that contained
factory-set pulsing programs improved Inconel® cladding
of boiler tubes
J. Rappl


1-s A CCT Diagram for an Offshore Pipeline Steel of X70 Type Advertiser Index ................101
A CCT diagram valid for the heat-affected zone of welded X70
pipeline steel was established
M. I. Onsøien et al.
7-s Metallurgical Investigation into Ductility Dip Cracking in
Ni-Based Alloys: Part I
In this study both macroscopic mechanical and microscopic
measures were quantified and compared for different
combinations of filler metal and Ni-Cr-Fe alloys
F. F. Noecker II and J. N. DuPont


Departments
Press Time News ................4
Editorial ............................6
News of the Industry ..............8
International Update ............14
Stainless Q&A ....................20
RWMA Q&A ......................22
Letters to the Editor ............24
New Products ....................26
Conferences ......................56
Coming Events....................58
Society News ....................61
Tech Topics ......................64
D1.1 Interpretations ........64
Guide to AWS Services..........80
Welding Workbook ..............82
New Literature....................88
Personnel ........................92
Classifieds ........................98



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Welding Journal, April 2009

info:
Welding Journal, April 2009
• Volume 88 • Number 4
American Welding Society
English
Pages: 152
PDF 10.37 MB

Know the Keys for Matching Filler Metals to Your Base Material
Selecting the right filler metal is a process of evaluating multiple factors
D. C. Phillips

Addressing the Furture Shortage of Welding and Joining Technicians
Anational center for welding education and training is born to help alleviate the future shortage of welders
J. Ondov and K. Smith

Brazing & Soldering Today

Brazing: An Important Joining Option
Brazing is compared to other joining methods considering the criteria of the application
C. Darling

The Effects of Adding Silver and Indium to Lead-Free Solders
Wettability, microstructure, and microhardness of lead-free solder are shown to improve with small alloy changes
I G. B. Budi Dharma et al.

Exploring Different Brazing and Soldering Methods
Furnace, dip, resistance, and torch methods of brazing and soldering are compared to see which is best for the job
J. Arnold et la.

Induction Soldering Gets Maglev Vehicle on Track
Soldering plays a critical role in the magnetic performance of the levitation system
K. H. Holko

How to Choose Nickel-Base Filler Metals for Vacuum Brazing
The efficiency and cost of making a brazement can depend on the right choice of filler metal
M. Weinstein et al.
SUPPLEMENTS

Development of a Multiline Laser Vision Sensor for Joint Tracking in Welding
Five laser lines provided the sensor sensitivity to precisely detect the joint in high-speed welding
K. Sung et al.

Effect of Buffer Sheets on the Shear Strength of Ultrasonic Welded Aluminum Joints
Buffer sheets reduced the sticking between the horn and the parts to be welded
M. Baboi and D. Grewell

Methodology for Parameter Calculation of VP-GMAW
Ways to overcome the arc instability of variable negative polarity and alternating current gas metal arc welding were investigated
L. O. Vilarinho et al.





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Welding Journal, May 2009

info:
Welding Journal, May 2009
• Volume 88 • Number 5
American Welding Society
English
Pages: 136
PDF 15.52 MB

CONTENTS
40 Welding for New Nuclear Power Plants: Building on
Experience
Advanced welding processes and practices will be
instrumental in extending the design life of the next
generation of nuclear power plants to 60 years and beyond
S. McCracken et al.
44 Friction Stir Process Now Welds Steel Pipe
Technology breakthroughs in tool design and portability
make friction stir welding capable of welding steel pipe
J. Defalco and R. Steel
50 Proper Preparation: The Key to Successful Pipe Welds
Proper joint preparation is crucial in producing highintegrity
welds on pipe
M. Leska
52 Automation Optimizes Nuclear Component Fabrication
Laser vision systems, robotic integration, and “intelligent”
welding machines are just some of the automation technology
that is now available for the fabrication of future nuclear
plants
J. Noruk and J. Boillot
56 New Technology Doubles Contractor’s Pipe Welding Output
A fabrication shop reveals how a welding process change
improved production time and minimized rework
N. Peterson

Departments
Press Time News ................4
Editorial ............................6
News of the Industry ..............8
International Update ............14
Letters to the Editor ............20
Stainless Q&A ....................24
Point of View ....................26
Technology........................30
RWMA Q&A ......................32
New Products ....................34
Conferences ......................60
Welding Workbook ..............62
Coming Events....................64
Society News ....................71
Tech Topics ......................73
Errata: D1.5M/D1.5:2008 ....73
Guide to AWS Services..........89
New Literature....................92
Personnel ........................96
Classifieds ......................104
99-s Influence of Nanoscale Marble (Calcium Carbonate CaCO3) Advertiser Index ................106
on Properties of D600R Surfacing Electrode
The addition of nanoscale marble particles in the flux coating
improved electrode arc stability, deposit efficiency, and wear
resistance
B. Chen et al.
104-s The Effect of High-Temperature Eutectic-Forming
Impurities on Aluminum 7108 Weldability
The circular patch test was adapted to evaluate the effect of
impurities on cracking susceptibility of cast 7108
M. G. Mousavi et al.
111-s Mathematical Modeling of Electrode Cooling in Resistance
Spot Welding
Based on modeling of resistance heating and heat transfer
between electrode and cooling water, a new cone-fin design on
the underside of the cap is proposed
Z. H. Rao et al.





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132 Pages


Features

28 In-Process Quality Assurance for Aerospace Welding
In-process quality assurance can be used to preclude the
occurrence of defects in aircraft and aerospace structures
V. R. Davé et al.
34 Current Technology in Welding Guns and Torches
Highlights are presented of the latest guns and torches
technology for gas metal arc, flux cored arc, and gas
tungsten arc welding
A. Cullison, K. Campbell, and M. R. Johnsen
38 How to Accurately Measure Fillet Welds
A manufacturer of tubular assemblies for the aerospace and
other industries developed a novel method for taking fillet
weld readings
J. Pavilanis
42 Optimizing Crash Resistance of Welded Aluminum Structures
Numerical design tools were developed to aid in the
selection and optimization of alloy composition, temper,
and process conditions for age-hardening aluminum alloys
O. R. Myhr et al.
46 Real-Time Crack Detection in Aerospace Structures
A system has been developed for detecting the initiation of
cracks during low-cycle fatigue tests in real time and prior
to damage occurring to components and tooling


Welding Research Supplement


21-s Hyperbaric GMA Welding of Duplex Stainless Steel at 12
and 35 Bar
Tests showed excellent mechanical properties were achieved in
underwater duplex stainless steel welds made under dry
hyperbaric conditions
O. M. Akselsen et al.
29-s Control of Longitudinal Bending Distortion of Built-Up
Beams by High-Frequency Induction Heating
The location and intensity of induction heat input were
determined in order to mitigate longitudinal bending distortion
of built-up beams during fabrication
J. U. Park et al.
35-s Three-Dimensional Analysis of Molten Pool in GMA-Laser
Hybrid Welding
Analytical models of GMA and laser keyhole welding were
merged to simulate hybrid welding and show the flow patterns of
the molten pool
J.-H. Cho and S.-J. Na





Departments
Washington Watchword ..........4
Press Time News ................6
Editorial ............................8
News of the Industry ............12
Aluminum Q&A ..................20
New Products ....................24
Welding Workbook ..............54
Coming Events....................56
Society News ....................61
Tech Topics ......................73
Guide to AWS Services..........87
New Literature....................92
Personnel ........................94
Classifieds ........................99
Advertiser Index ................102

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140 Pages





FEATURES
Laser Welding: It's Not Just for Metals Anymore
Techniques for welding plastice with diode lasers are examined
S. A. Kocheny and B. Miller

Using Hybrid Laser Arc Welding to Reduce Distortion in Ship Panels
A hybrid process using a combination of laser and gas metal arc welding minimized distortion in thin steel plate
S. M. Kelly et al.

One Machine Does It All for Laser Beam Welding and Cutting
There are many benefits of usng one machine for both laser beam cutting and welding without changing the process head
D. Petring and F. Schneider

The American Welder
Welded Sculptures Pay Tribute to Fallen Heroes
The creative vision of a retired firefighter is evident in his welded sculptrues dedicated to the fallen on 9/11
K. Campbell

Optimizing Tungsten Electrode Performance
Weld quality often depends on the proper care and choice of the tungsten electrode.
M. Fletcher

How to Choose Ergonomic Hand Tools
Know how to select hand tools that are efficient in operation, yet comfortable to use
P. Holstein

SUPPLEMENTS

Welding Gun Inclination Detection and Curved Fillet Weld Joint Tracking
Welding current is used to detect gun inclination and deviation in a robotic system that produces a curved fillet weld
Y. F. Gao et al.

Heat Transfer and Fluid Flow during Electron Beam Welding of 304L Stainlesss Steel Alloy
A three-dimensional model was used to calculate weld pool fluid flow patterns and their effect on weld geometry
R. Rai et al.

Metallurgical Investigation into Ductility Dip Cracking in Ni-Based Alloys: Part II
The correlation of ductility dip cracking to a simulated thermal cycle helped evaluate microstructure and chemical evolution in four alloys
F. F. Noecker II and J. N. DuPont

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Know the Keys for Matching Filler Metals to Your Base Material
Selecting the right filler metal is a process of evaluating multiple factors
D. C. Phillips

Addressing the Furture Shortage of Welding and Joining Technicians
Anational center for welding education and training is born to help alleviate the future shortage of welders
J. Ondov and K. Smith

Brazing & Soldering Today

Brazing: An Important Joining Option
Brazing is compared to other joining methods considering the criteria of the application
C. Darling

The Effects of Adding Silver and Indium to Lead-Free Solders
Wettability, microstructure, and microhardness of lead-free solder are shown to improve with small alloy changes
I G. B. Budi Dharma et al.

Exploring Different Brazing and Soldering Methods
Furnace, dip, resistance, and torch methods of brazing and soldering are compared to see which is best for the job
J. Arnold et la.

Induction Soldering Gets Maglev Vehicle on Track
Soldering plays a critical role in the magnetic performance of the levitation system
K. H. Holko

How to Choose Nickel-Base Filler Metals for Vacuum Brazing
The efficiency and cost of making a brazement can depend on the right choice of filler metal
M. Weinstein et al.
SUPPLEMENTS

Development of a Multiline Laser Vision Sensor for Joint Tracking in Welding
Five laser lines provided the sensor sensitivity to precisely detect the joint in high-speed welding
K. Sung et al.

Effect of Buffer Sheets on the Shear Strength of Ultrasonic Welded Aluminum Joints
Buffer sheets reduced the sticking between the horn and the parts to be welded
M. Baboi and D. Grewell

Methodology for Parameter Calculation of VP-GMAW
Ways to overcome the arc instability of variable negative polarity and alternating current gas metal arc welding were investigated
L. O. Vilarinho et al.

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Welding Journal (January 2010)

pdf | 134 Pages,10.0 MB
CONTENTS

30 Correcting Thin-Plate Distortion in Shipbuilding
Flame straightening and induction heating are examined as
cost-effective methods of rectifying distortion
N. A. McPherson

36 Options for Making Underwater Repairs to Offshore
Platforms
Choosing the best method of repairing large-scale underwater
damage presents a challenge to the contractor
W. J. Couch

40 How Can Computational Weld Mechanics Help Industry?
A case is made for the use of computational weld mechanics
to predict weld properties in advanced materials
S. S. Babu et al.

47 Laser Beam Welding Process Automates Underwater Repairs
Laser beam welding is shown to be a viable option for
underwater repair in the nuclear industry
R. Bucurel and G. Hlifka

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