Negative insert having double-positive clearance surface

Negative insert having double-positive clearance surface

  • CN 102,083,577 B
  • Filed: 06/17/2008
  • Issued: 06/17/2015
  • Est. Priority Date: 06/21/2007
  • Status: Active Grant
First Claim
Patent Images

1. an Indexable insert (1), for being encased in machining workpieces in carrier tool, there is end face (2) and bottom surface (3) and the periphery solid (4) being connected end face (2) and bottom surface (3), wherein cutting angle (5) and cutting edge (6) what configure from end face (2) and bottom surface (3) towards the transition portion of periphery solid (4), periphery solid (4) have in both sides under cutting angle (5) and cutting edge (6) around orthogonal cutting surface (7a, 7b), it is pinch in that these cutting surfaces are compared with cutting edge (6) with cutting angle (5), therefore the relief angle (α

  • ) that a two sides is positive is just had, it is characterized in that, with end face (2) and bottom surface (3) for benchmark and at upper opposed two cutting surfaces (7a of periphery solid (4), 7b), arrange that one relative to cutting surface (7a, the band (8) that extreme lower position 7b) is protruded, the surface (9) of band is used as the contact surface in carrier tool, cutting surface (7a, 7b) in the contact area (11) of direct adjacent cutting edge (6) and cutting angle (5), be substantially perpendicular to the end face (2) of Indexable insert (1) and bottom surface (3) are designed.

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