アルミニウム合金の孔あけ被削性

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タイトル別名
  • Drilling machinability of some aluminum alloys
  • アルミニウム ゴウキン ノ アナアケ ヒサクセイ

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抄録

Dry machining tests under a constant load on the tool axis were carried out on A5056 BEF, A6061 BE-T6 and A2017 BE-F using standard helix, high helix and low helix tools. A thrust component of cutting resistance is independent of materials. Its magnitudes are ordered by the tool helix angle; (standard helix) < (high helix) < (low helix). A torque component of cutting resistance increases with increasing cutting depth. Pitch length for curled type chips increases with increasing cutting depth especially rapidly at the depth 15 and 20mm. Thicker chips are formed, when tool diameters 10 and 6mm respectively for standard helix and high helix tools are used. Superior cutting efficiency is ensured under these conditions. Surface roughness is independent of tool helix angle. When high and low helix angle tools are used, the ratio of burr height to specimen thickness is independent of free feed velocity. The ratio for standard helix tool decreases with increasing feed velocity especially for larger tool diameter.

収録刊行物

  • 軽金属

    軽金属 27 (12), 590-598, 1977

    一般社団法人 軽金属学会

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