Perimeter of the semicircle having diameter 'd' is

(Pie+1)*d/2

(Pie+2)*d/2

(Pie+3)*d/2

(Pie+4)*d/2

Spot welding

Projection welding

Seam welding

Upset welding

(Length of cut x No. of cuts)/(Feed x r.p.m)

(Feed x r.p.m)/(Length of cut x No. of cuts)

(Lengt of cut x Feed)/(No. of cuts x r.p.m)

(Length of cut x r.p.m)/(Feed x No. of cuts)

1815.20'

1815.30'

1815.40'

1815.50'

0.03, 0.07 mm

0.02, 0.03 mm

0.02, 0.02 mm

0.05, 0.05 mm