Drilling and chiseling bit with a cutting member in a base membe

Details Drilling and chiseling bit with a cutting member in a base membe Drilling and chiseling bit with a cutting member in a base membe

1992-04-28

1993-11-30

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Tool or tool with support

Having peripherally spaced cutting edges

1754201, 175426, B23B 5100

Patent

active

052659895

ABSTRACT:
A drilling and chiseling bit includes a base member (1) having an axis extending in the drilling and chiseling direction. The base member has an end face disposed transversely of the axis, with a recess (3) extending in the axially direction inwardly from the end face. A cutting member (2) is secured in the recess by a soldered joint. At least one of the base member and cutting member is formed to prevent the development of shear stress peaks in the end regions of the recess extending transversely of the axial direction. To prevent the shear stress peaks, relief notches or recesses can be provided in the base member (1) or the soldered joint (4) can have a variable thickness in the axial direction increasing towards the opposite ends of the recess.

REFERENCES:
patent: 2614813 (1952-10-01), Shepherd

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