| 摘要 |
A shaper cutter includes an elongated body having a flat forward end surface perpendicular to the axis of the body and having teeth formed around its periphery, and further includes a thin insert being mechanically secured to the end surface of the body and having peripheral cutting teeth which lie against the teeth of the body, the teeth of the insert serving to cut a work piece and being backed by the teeth of the body. The insert is in the form of a Belleville spring which, in its unstressed state, has a conical shape. The mechanical means used to secure the insert to the body deflects the insert into a flat configuration whereby its bottom side is forced into intimate face to face contact with the flat forward end surface of the body, and the teeth of the insert are thus positively biased by inherent spring force against the flat end surface of the supporting teeth, and are operable to cut a work piece as the tool is advanced forwardly.
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