TREA

Making helical bodies or bodies having parts of helical shape

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Industry

  • CPC
  • B21H3/00
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21HMAKING PARTICULAR METAL OBJECTS BY ROLLING

Current Industry

B21H3/00Making helical bodies or bodies having parts of helical shape

Sub Industries

B21H3/02external screw-threads; Making dies for thread rolling B21H3/022combined with rolling splines, ribs, grooves or the like B21H3/025Rolling locking screws B21H3/027Rolling of self-tapping screws B21H3/04Making by means of profiled-rolls or die rolls B21H3/042Thread-rolling heads B21H3/044working axially B21H3/046working radially B21H3/048working tangentially B21H3/06Making by means of profiled members other than rolls B21H3/065Planetary thread rolling B21H3/08internal screw-threads B21H3/10twist-drills screw-taps B21H3/12articles with helicoidal surface
Industries