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13.38 TIN SMITHY
ii) PATTERN LAYOUT oF
DEVELOPMENT OF PaRT x -
(Parallel Line Development )
() FUNNEL - FRONT VIEW
Mii) PATTERN LAYOUT OF
DEVELOPMENT OF PARTY
(Radial Line Development) HN GIANT 13.9%
Se
FUNNEL
Tims T° make a Funnel from the given G.I
ll
sheet Metal,
yATERIAL SUPPLIED : 22 SWG - G.I, Sheet Metal
ee:
J,o0lS REQUIRED
\ 2.
1, steel Rule Try Square 3. White Paper 4, Seriber 5, Divider 6, Bevel
protractor 7. Ball Peen Hammer 4, Straight and Bend Snips 9, Stake
11. Groover 12. Solder 13, Leveling Plate
ie t
JspQUENCE OF PROCESSES
{,Checking Dimensions 2, Leveling 3, Marking on Paper 4, Marking on Paper
5. Folding 6. Hemming 7. Soldering 8, Checking. Final Dimensions
. Using Steel Rule, the given Sheet Metal is checked for its dimensions.
. Using Mallet, the Sheet is leveled on the Leveling Plate.
. First, the required shape, /.e., Pattern Layout of Development of Funnel by Parallel
Line Method for the Hollow Cylinder (X) and Radial Line Method for Frustum of Cone
(Y)is drawn ona Paper. 0 is marked using Protractor.
|. The above Pattern is used for reproducing the exact size on the Sheet Metal using the
Scriber.
. Straight Snip and Bend Snip are used to cut this shape with 5 mm allowance for joining.
. Unwanted materials are removed, using Straight Snips.
The Sheet Metal is folded and bent to make the Funnel Shape.
Butt Joint is made for the Hollow Cylinder.
5.
6.
7.
8.
9. m on the Conical Shape.
Using Groover, Grooved Joint is made for about 5 m
10. Also, Hemming operation is done in the top and bottom of the Funnel.
11. Using Solder, Soldered Joint is made in between top face of X and bottom face of Y.
12, Finally, the dimensions of the Funnel are checked.
T
Thus, the Funnel of the required dimensions is made from the given G.1. Sheet Metal.
meen
