Method for Joining Workpieces Together and Product Made Thereby

Abstract

A method of forming a joint between first and second workpieces generally consisting of forming a recess in one of such workpieces, provided with at least one side wall having a serrated cross-sectional configuration with inwardly projecting, distortable segments; providing a portion in the other of such workpieces, insertable into such recess, having a cross-sectional configuration sufficient to engage and distort such segments as such portion is inserted into such recess; and inserting such portion of the other workpiece into such recess, causing the segments to distort and thus provide an interference fit between such workpieces.

1 . A method of forming a joint between first and second workpieces, comprising:
 forming a recess in one of said workpieces, provided with at least one side wall having a serrated cross-sectional configuration with inwardly projecting, distortable segments;   providing a portion in the other of said workpieces, insertable into said recess, having a cross-sectional configuration sufficient to engage and distort said segments as said portion is inserted into said recess; and   inserting said portion of said other workpiece into said recess, causing said segments to distort and thus provide an interference fit between said workpieces.   
     
     
         2 . The method according to  claim 1  including applying a bonding agent to one of said recess and said portion prior to insertion of said portion into said recess. 
     
     
         3 . The method according to  claim 1  wherein said segments are provided with sloped surfaces enagageable by said portion inserted into said recess, causing said segments to deflect toward a bottom of said recess and thereby fix said portion within said recess. 
     
     
         4 . The method according to  claim 1  including forming said recess with a circular cross-sectional configuration. 
     
     
         5 . The method according to  claim 1  including forming said recess with a polygonal cross-sectional configuration. 
     
     
         6 . The method of  claim 1  including forming said recess with a pair of opposed side walls each provided with a serrated cross-sectional configuration, and said insertable portion with a pair of outer side wall surfaces cooperable with serration segments of said opposed side all surfaces of said recess. 
     
     
         7 . The method of  claim 1  including forming said recess as one of a group consisting of a mortise, socket, dados, pocket mortise, slot and groove, and forming said insertable portion as one of a group consisting of a tenor, rabbet and tongue. 
     
     
         8 . A product including at least first and second work pieces joined together at least partially by the method comprising:
 forming a recess in one of said workpieces, provided with at least one side wall having a serrated cross-sectional configuration with inwardly projecting, distortable segments;   providing a portion of the other of said workpieces, insertable into said recess, having a cross-sectional configuration sufficient to engage and distort said segments as said portion is inserted into said recess; and   inserting said portion of said other workpiece into said recess, causing said segments to distort and thus provide an interference fit between said workpieces.   
     
     
         9 . The product according to  claim 8  including applying a bonding agent to one of said recess and said portion prior to insertion of said portion into said recess. 
     
     
         10 . The product according to  claim 8  wherein said segments are provided with sloped surfaces enagageable by said portion inserted into said recess, causing said segments to deflect. 
     
     
         11 . The product according to  claim 8  including forming said recess with a circular cross-section configuration. 
     
     
         12 . The product according to  claim 8  wherein including forming said recess with a polygonal cross-sectional configuration. 
     
     
         13 . The product according to  claim 8  including forming said recess with a pair of opposed side walls each provided with a serrated cross-sectional configuration, and said insertable portion with a pair of outer side wall surfaces cooperable with serration segments of said opposed side wall surfaces of said recess. 
     
     
         14 . The structure according to  claim 8  including forming said recess as one of a group consisting of a mortise, socket, dados, pocket mortise, slot and groove, and forming said insertable portion as one of a group consisting of a tenor, rabbet and tongue. 
     
     
         15 . A tool for forming a serrated contour along a side wall surface of a recess in a workpiece, comprising an elongated body having an axis, mountable to a fastening means of a spindle for rotation about the axis thereof, provided with at least one annular recess in a side wall surface thereof, relative to said axis thereof, and arcuately spaced recesses in said side wall surface, relative to said axis thereof, cooperating with said annular recess to form cutting edges. 
     
     
         16 . A tool according to  claim 15  wherein said annular recess is provided with a frusto-conically configured surface. 
     
     
         17 . A tool according to  claim 15  including a plurality of said, annular recesses, providing a serrated cross-sectional configuration. 
     
     
         18 . A tool according to  claim 17  wherein said annular recesses are provided with frusto-conically configured surfaces. 
     
     
         19 . A tool according to  claim 15  wherein said arcuately spaced recesses in said side wall surface are diametrically displaced. 
     
     
         20 . A tool according to  claim 15  wherein said arcuately spaced recesses extend the axial length of said annular recesses.