Vessel head and tool and method for the production thereof

Abstract

The invention relates to a vessel head (1) for a vessel (30), comprising: a vaulted dish area (2) having a vault radius R, a connecting contour (5) comprising in a first contour section (6) a first radius of curvature (r1) and in a second contour section (7), a second radius of curvature (r2), wherein the first radius of curvature (r1) is larger than the second radius of curvature (r2) and a knuckle area (3) surrounding the dish area (2) and tracing the connecting contour (5) is configured between the connecting contour (5) and the dish area (2) comprising, extending along the first contour section (6), a first knuckle section (10) having a first knuckle radius (dB) and a second knuckle section (12) having a second knuckle radius (r1k2). The invention further relates to a tool and a method of manufacturing such a vessel head (1).

1 . A deep-drawing tool that is configured to manufacture a vessel head comprising:
 (a) a vaulted dish area having a vault radius, R;   (b) a connecting contour comprising:
 (i) in a first contour section, a first radius of curvature, r 1 , and 
 (ii) in a second contour section, a second radius of curvature, r 2 , 
   
       wherein the first radius of curvature, r 1 , is larger than the second radius of curvature r 2 ; and
 (c) a knuckle area surrounding the dish area and tracing the connecting contour, wherein the knuckle area is disposed between the connecting contour and the dish area, and extends along the first contour section, and comprises:
 (i) a first knuckle section having a first knuckle radius, r 1k1 , and 
 (ii) a second knuckle section having a second knuckle radius, r 1k2 . 
 
 
     
     
         2 . A method for manufacturing a vessel head comprising:
 (a) deforming a circular metal blank by means of a deep-drawing tool according to claim  16  to obtain a deep-drawing intermediate product; and   (b) trimming the deep-drawing intermediate product along a cutting line.   
     
     
         3 . The method according to  claim 2 , comprising providing a circular metal blank. 
     
     
         4 . The method according to  claim 2 , comprising forming a connection port in the deep-drawing intermediate product, forming a connection region comprising a connecting rim that describes a circular cylinder section and combinations thereof. 
     
     
         5 . The method according to  claim 4 , comprising providing a circular metal blank.