Development of high water-content cutting fluids with a new concept - Fireprevention and environmental protection

Using water-insoluble cutting fluids, which are good in lubricity but easy to mist, always risks firing and environmental problems. On the other hand, the current water-soluble coolants fail to deliver sufficient lubricity to heavy cutting applications. This study has newly proposed and developed a high water-content cutting fluid, based upon a new concept of having high l ubricity despite of its water-soluble nature. As compared to the commercial ized water-insoluble cutting fluid, the new cutting fluids shows a better c apability of preventing oil mist and is fully applicable into cutting of va rious metallic materials, particularly effective in cutting of S45C and SUS 304. The study also reveals a fact that a sulfur-type extreme pressure agen t is the key element to enhance the cutting performance at high temperature . (C) 2000 Elsevier Science Inc. All rights reserved.