Making GMAW work

By Design News Staff -- Design News, September 25, 2006

Using Gas Metal Arc Welding (GMAW) with AHSS does present some technical hurdles. AHSS are sensitive to heat inputs of GMAW and can potentially suffer from microstructure changes and reductions in mechanical properties. It's a problem made all the worse in the down-gauged sheet made possible by AHSS strength. In his GDIS presentation, Ford's Elliott outlined some of the company's ongoing work to optimize GMAW process variables and weld-line geometry. For example, he identified a number of variables that can increase fatigue life of a lap-welding joint between a 3.4 mm AHSS (DP 600) and a 3.8 mm mild steel. Among the variables are decreasing wire feed speed and travel speed while increasing torch angle, push angle and the contact-to-work-distance.

Take a more comprehensive look at Elliott's study.

related stories
resource center
by this author

View more articles by Staff Staff

Technology Marketplace

Article tools sponsored by

Talkback

We would love your feedback!

» View All Talkback Threads

» Submit talk back

DN's Resource Center Get Free Information, Made Easy

Friction, Wear and Lubrication Info from Society
Society of Tribologists and Lubrication Engineers | Design Guide
Request Item
Best Practices for Green, Energy, and Supplier Challenges
Dell Computer Corp. | Web Event
Request Item

View all DN resources >>

Design News Partner Zones

CAD/CAE Model Clean-Up: Reduce Iterative Cycles
This webinar featured research and survey results related to problems associated with preparing CAD geometry for CAE applications. We discussed how Recipe-Based Automation can help create "just-in-time" CAE-ready geometry each time a cad model is updated. Watch the Presentation

Light Matters: A High-Performance, "No-Compromise" Solid State Lamp?
First, let's define "no-compromise". In an ideal configuration, this lamp would use a high-brightness LED (HBLED) that is built into a small, integrated package, and is able to produce a large quantity of focused light, operate with a high level of reliability and generate no audible noise. Is this difficult? Yes, but it is possible.
Read More

Design Engineers' Portal for Sensing and Machine Safety
Whatever industry you're in, or whatever product you manufacture, the right sensors to automate your plant, and to improve your overall efficiency, quality and safety are a must. You'll find Banner Engineering to be an amazing resource of products, training and people with expertise.