Welding Guide

Welding Guide - The Garage Guy's Guide To Welding

When exposed to air, aluminum forms a hard oxide layer that completely covers its surface. The white area seen around the weld is the result of the arc and argon gas cleaning the oxide coating off the aluminum. View Related Article

GMC Yukon XL Research

Finding a fuel efficient automobile today is easier than ever. Check out the GMC Yukon XL buyer's guide providing information on car specs, reviews and fuel economy. The 2009 Yukon XL is offered with your choice of V8 engine, and it has a comparable warranty. Other similar vehicles are the Ford F150 and the Ford Expedition.