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Monday, November 5, 2012

Welding & Aluminum Railings: FAQ's

Is a human weld better than a robotic weld? 

The welding process is one of the most utilized fastening techniques when fabricating architectural aluminum railing.

So, which types of welds are the best?  Below are some answers to frequently asked questions regarding aluminum railing welds:

Human Weld
1.  Why are completely sanded welds an unsafe choice for architectural railings?
Although it might look visually appealing, completely ground or sanded welds present a world of structural issues, such as the inability to meet loading requirements and building codes.

2.  What is a common joint finish for architectural aluminum railings?
Most architectural railing manufacturers use finish #3. According to NOMMA standards, finish #3 is a partially dressed weld with spatter removed.  This finish is cleaner than finish #4, but not completely - or mostly - sanded like #1 or #2 weld types.

Robotic Weld
3.  What are the advantages of human welds over robotic welds?
As far as strength is concerned, both work similarly, however, the appearance differs slightly.  Human welds are smoother and more intricate (depending on the experience level of the welder), while robotic welds are more cost effective and much faster to perform.

4.  What does a "good" weld look like? 
Generally, a good weld will resemble a stack of quarters placed on its side.

5.  Where can continuous welds be found on aluminum railing?
On standard models, the base plate of a surface mounted aluminum railing is the only place on the system where there is a continuous weld.

6.  What is the recommended finish after welding?
From powdercoat paint to Kynar resin, the color options available are virtually endless.  However, one should note that anodized finishes make welds stand out, which oftentimes results in an unattractive final product.

For more information on architectural aluminum railings, CLICK HERE.

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