Video: Cryogenic Machining of Titanium
This video from MAG shows milling of titanium using the company’s minimum-quantity approach to cryogenic machining. This cryogenic system delivers liquid nitrogen through the tool at a low flow rate, which has the effect of turning the tool into a heat sink. The white mist in this video is the liquid nitrogen turning to gas as soon as it touches the air. The white on the tool is frost produced by the low temperature, despite the heat of machining. This method of tool cooling has delivered dramatic gains in tool life, particularly in heat-resistant metals. For a more detailed article, see the item under “Editor Picks” at right.
Hand-scraping the mating surfaces of a CNC machine tool’s motion system offers myriad advantages.
Cryogenic machining achieves dramatic tool life gains not by flooding the cut, but by refrigerating the tool.
Many job shops start in a garage with a used mill and a manual lathe. The owners of this Utah job shop took a different tack. Along the way to a very successful business, they've debunked a bunch of myths commonly held about job shops.