Patent · US Expired

Method and apparatus for forming parts from a continuous stock material and associated forge

US6739171B2 · kind B2 · utility

1Cited by
102References
35Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 17, 2001
Grant dateMay 25, 2004
Priority date
Expiry dateSep 30, 2021

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T408/909
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

The present invention provides a method and apparatus for forming a plurality of parts, such as spade-type boring bits, from a continuous stock material. Thus, the various steps of the forming method of the present invention can be performed to predetermined portions of the continuous stock material prior to separating the continuous stock material into discrete parts, thereby enhancing the efficiency of the forming process. The present invention also provides an improved forge for forming portions of the continuous stock material into parts having a predetermined shape. The forge can be designed to provide a clearance region proximate the forward end of the ram to permit slight flexing of the forward end of the ram in a radially outward direction during forging operations. The forge can also include a lubrication system for lubricating its various components. In addition, the forge can incrementally rotate the ram after one or more parts have been forged. By repeating the incremental rotation of the ram, the forge will eventually rotate the ram a full 360°. An improved forging die is also provided which includes a back surface having a conical medial section and a pair of coni…

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.