April 2009 WJ
 WELDING JOURNAL - April 2009 - Volume 88, Number 4
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FEATURES
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.

DEPARTMENTS

Washington Watchword

Press Time News

Editorial

News of the Industry

Aluminum Q&A

Letters to the Editor

New Products

Brazing & Soldering Today
     Technology News
     Brazing Q&A

Welding Workbook

Coming Events

Society News

Tech Topics

Guide to AWS Services

New Literature

Personnel

Welding Profiles

Classifieds

Advertiser Index

Welding Journal (ISSN 0043-2296) is published monthly by the American Welding Society for $90.00 per year in the United States and possessions, $130 per year in foreign countries: $6.00 per single issue for AWS members and $8.00 per single issue for nonmembers. American Welding Society is located at 550 NW LeJeune Rd., Miami, FL 33126-5671; telephone (305) 443-9353. Periodicals postage paid in Miami, Fla., and additional mailing offices. POSTMASTER: Send address changes to Welding Journal, 550 NW LeJeune Rd., Miami, FL 33126-5671.

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