Spin forming is the process of creating shaped metal pieces, usually rounded in shape, on a lathe or with other metal spinning tools. Spun metal has surprising strength and can be made into a variety of shapes. Although many factories use molds, rollers, or presses to create metal objects, many factories still use the process of spin forming aluminum. Spun aluminum pieces have the strength of the original metal plus additional strength provided by the shaping process. Spinning aluminum is a low-tech manufacturing option that still produces superior results over more high-tech solutions, which is one of the reasons why it is still so prevalent today. Many metal spinning factories create similar pieces, some of which can include:
For the past year, my younger brother has been backpacking around New Zealand, sleeping in a tent, working on farms and climbing mountains. From the pictures I’ve seen, it’s been an amazing adventure in one of the most naturally beautiful places on Earth. The older sister in me, though, is always a little bit worried. I imagine him scaling the sides of steep rock formations or climbing his way to the top of Mount Cook, and I realize how much more of a thrill seeker he is than me. While I would prefer he take up a more relaxing outdoor sport like fishing, the fact that he’s well equipped for belaying allows my mind to rest easy. Instead of relying on a good grip and foot holding, most rock climbers these days use an effective system consisting of a harness, pulley and belay loop, which are all attached to a sturdy climbing rope. Belaying ensures the climbers won’t fall very far in case they slip off a rock.