SUS 304L 焼結ステンレス鋼の被削性とそれに及ぼす S 添加の効果

概要

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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/cm^3 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 ⊿D=|D_s-D_c|, where D_s, D_c 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.
社団法人日本鉄鋼協会の論文
1980-07-01