• Title/Summary/Keyword: Al 6056

Search Result 1, Processing Time 0.015 seconds

Manufacturing Process Design of High Strength Al 6056 Bolts by Strain Hardening Effect (가공경화를 이용한 고강도 Al 6056 볼트의 생산 공정설계)

  • Park, J.S.;Kim, Y.B.;Kim, S.W.;Kim, H.S.;Ann, K.H.;Park, J.S.;Kang, J.H.
    • Transactions of Materials Processing
    • /
    • v.30 no.4
    • /
    • pp.165-171
    • /
    • 2021
  • This study was conducted on the manufacturing method of high-strength aluminum bolts. We obtained the displacement-load information by tensile test of the Al 6056 raw material and the T6 heat-treated material and calculated the precise flow stress and fracture limit using repetitive finite element analysis for before and after heat treatment. We designed a multi-stage forging process for T6 heat-treated material, and calculated that the accumulated damage value does not exceed fracture limits by finite element method. We produced the prototype forgings without any harmful defects such as cracks and folding occurring. Bolts made of T6 heat treated material show 9.6%higher tensile strength than T6 heat treated material after wire drawing.