Page 111 - Ship Construction.DJ Eyres 6Ed
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Ch10-H8070.fm  Page 100  Wednesday, October 18, 2006  7:37 AM




                      Fillet weld  Tack       Weld        Weld



                      LAP WELD (BAD PRACTICE)  TACK WELDS  Tack  STAGGERED INTERMITTENT FILLET WELDS  Weld  Weld  CHAIN INTERMITTENT FILLET WELDS  Weld  Weld  SCALLOPED SECTION WITH CONTINUOUS  FILLET  Radius not less than 25 mm D  150 mm max
                      --- ใช้เพื่อการศึกษาเท่านั้น---


                          งานห้องสมุด ศูนย์ฝกพาณิชย์นาวี




                                  Tack

                                                                      Not greater  than 0.25D  or 75 mm  whichever  is less




                            Heavy plate  Tack weld  TAPER 1 IN 4  t  30°  ึ      Plate edge preparation



                               30°–0°  4



                      ‘U’ BUTT         Backing bar  Greater than  1.125t  FILLET VEE  FILLET J  FIGURE 10.2






                           Plate less than 6mm thick (manual)  60°  Nose  Plate 6mm– 18mm thick  60°  Heavy plate  60°  60°  1 /3t  1 /3t  1 /3t  60°  Heavy plate  40°  20°  1 /3t  1 /3t  1 /3t  Heavy plate  40°  20°










                      SQUARE    VEE      DOUBLE  VEE     t          t
   106   107   108   109   110   111   112   113   114   115   116