A new free-machining additive, MnX, has been reported to improve the machining performance of ferrous powder metallurgy (PM) materials. This work investigated this claim by comparing the performance of three otherwise identical PM materials containing: no additive, conventional manganese sulphide (MnS) additions and the new MnX additive. A turning operation and cutting speeds of 100–250 m/min were used during which cutting forces, tool wear and surface finish were measured. The MnX material was found to exhibit superior performance. However, this was most noticeable at higher cutting speeds and at the lower cutting speeds, differences in performance were substantially reduced. [S0094-4289(00)02004-1]
Machining Performance of PM Material Containing MnX Additives1
Contributed by the Materials Division for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received by the Materials Division December 20, 1999; revised manuscript received April 20, 2000. Guest Editor: Assimina Pelegri.
- Views Icon Views
- Share Icon Share
- Search Site
Barnes, S., Nash, M. J., and Lim, M. H. (April 20, 2000). "Machining Performance of PM Material Containing MnX Additives." ASME. J. Eng. Mater. Technol. October 2000; 122(4): 379–383. https://doi.org/10.1115/1.1288924
Download citation file: