섬유

deburring by centrifugal barrel tumbling

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 360
the reliability of small precision mechanisms greatly depends upon the production of burr-free, sharp-edged parts. centrifugal barrel finishing (harperizing) is one of the few processes capable of producing these conditions. burrs less than 0.001-in. thick by 0.001-in. high (25.4 x 25.4 mu m) can be removed from 303 se stainless steel, 1018 steel, and 6061-t6 aluminum with dimensional changes in the order of 0.0001-in. (2.54 mu m) and final edge radii of 0.003 in. (76.2 mu m). these conditions can be produced in batch lots in 20 minutes or less. surface finishes can be reduced from 45 to 25 or 35 microinches (1.15 to 0.68 or 0.89 mu m), with 60-minute cycle times. stock losses appear to be repeatable within +-0.00006 in. (1.524 mu m). very small parts receive less action than parts 0.5 in. (12.7 mm) in dia. (era citation 02:007755)
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