On the Machinability of SUS 304L and S-bearing 304L-type Sintered Stainless Steels
1980 Volume 66 Issue 8 Pages 1142-1149
Details
1980 Volume 66 Issue 8 Pages 1142-1149
An investigation was made of the influence of pressing and sintering conditions, and S addition up to 0.4% on the machinability of 304L sintered stainless steels manufactured by the water-atomized powders.
The results were as follows.
(1) The sintered density gave remarkable influence on cutting resistance. The resistance got smaller first, and then larger with increasing density, having the minimum value around 7g/cm3 of density.
(2) There occurred a change of the shape and the density of cutting chips with the density of materials. The resistance got larger in proportion to ΔD=|Ds-Dc|, where Ds, Dc were the density of specimens and chips, respectively.
(3) Sulphur addition had no influence on original powder characteristics. Cutting resistance decreased with increasing amount of S, and accordingly, tool life could be remarkably improved.
