Curve forming and riveting method

Abstract

A curve forming and riveting method includes steps of providing a sheet metal member, a riveting member and a forming mold, wherein the forming mold has a curve forming portion; attaching the sheet metal member to the curve forming portion; assembling the riveting member to the sheet metal member; and riveting the riveting member and the sheet metal member together by the curve forming portion and forming a curve contour on the sheet metal member corresponding to the curve forming portion.

What is claimed is: 
     
         1 . A curve forming and riveting method comprising steps of:
 providing a sheet metal member, a riveting member and a forming mold, wherein the forming mold has a curve forming portion;   attaching the sheet metal member to the curve forming portion;   assembling the riveting member to the sheet metal member; and   riveting the riveting member and the sheet metal member together by the curve forming portion and forming a curve contour on the sheet metal member corresponding to the curve forming portion.   
     
     
         2 . The curve forming and riveting method of  claim 1 , further comprising step of:
 riveting the riveting member and the sheet metal member together from a normal direction of the curve forming portion.   
     
     
         3 . The curve forming and riveting method of  claim 1 , further comprising step of:
 before attaching the sheet metal member to the curve forming portion, performing a characteristic forming process for the sheet metal member.   
     
     
         4 . The curve forming and riveting method of  claim 3 , wherein the characteristic forming process is to bend the sheet metal member or cut material from the sheet metal member. 
     
     
         5 . The curve forming and riveting method of  claim 1 , further comprising steps of:
 measuring the curve contour to determine whether the curve contour conforms to a standard value; and   adjusting a height of the curve forming portion if the curve contour does not conform to the standard value.   
     
     
         6 . The curve forming and riveting method of  claim 5 , further comprising step of:
 measuring a deformation of the curve contour and determining whether the deformation is within an allowable range, so as to determine whether the curve contour conforms to the standard value.   
     
     
         7 . The curve forming and riveting method of  claim 1 , wherein the curve forming portion is a protrusion, such that the curve contour corresponding to the curve forming portion is a recess. 
     
     
         8 . The curve forming and riveting method of  claim 1 , wherein the curve forming portion is a recess, such that the curve contour corresponding to the curve forming portion is a protrusion.