In the 1830’s, cranes were able to lift their own weight. Today, cranes can lift 10 times their own weight. How? Innovation. Not only through better design, but advancement in high strength steel and fabrication processes.
Welding is a method of bonding two pieces of metal together. In many cases, this bond can be stronger than the base material. The process of fusing two pieces of metal together requires the base metal to melt and flow together. Old methods would use a blowtorch to heat metal until the base pieces reached melting temperature. New methods use electric arcs to generate the required heat. An electrode—consumable and charged positively or negatively depending on the character of the weld—is passed to a workpiece. There are many methods to achieve metal fusion via welding; choosing the right method is crucial.
The broad term “metalworking,” covers a variety of different methods for transforming raw sheet metal into products and components. Steel forming technology has changed drastically over time. Though one is hard pressed to find a blacksmith pounding red hot steel with hand tools; the principals remain the same. The two methods most commonly used today are fabricating and forging.