With the predominance of highly accurate CNC machines throughout the firearm industry, techniques such as forging and casting tend to seem a bit outdated and lacking precision. Whether it’s a huge forge at Smith & Wesson—rhythmically pounding hot metal with a giant hammer—or Ruger’s foundry with its molten steel, these dramatic operations do seem a bit primeval. The reality, though, is quite the opposite.
Investment casting, sometimes called “lost wax” casting, is a manufacturing technique that dates back nearly 6,000 years. Ancient Egyptians used it to create jewelry and ornaments, and the method has been in continuous use throughout recorded history. As technology has advanced, investment casting has improved, and the computer-aided process employed by Ruger in the manufacture of its firearms is precise and efficient. Here is a brief look at the Newport, N.H.-based firm’s modern take on ancient tech.
Source: dailycaller.com
