©
COPYRIGHT 2000 THE ESAB GROUP, INC. LESSON
IX domed portion
above or below the surface of the plate, where required. The reinforcement
should extend slightly beyond the edges
of the joint. Measure the length and height of the
reinforcement and note them on your
drawing. The reinforcement is only an approximation
because the contour cannot be exactly
controlled in welding. Refer to the weight tables in
Figure 14 for the weights per foot
of each of the component parts of the weld, as sketched.
The sum of the weights of all the components
is the total weight of the weld, per foot as shown in
Figure 15A. Line
7 - The total cost per pound as determined in Line
6 is entered, and multi- plied
by the weight per foot as determined in Figure 14. 9.4.3
Calculating the Cost of Weld Metal
- Total Job Line
8 - The cost of the weld for the total
job is determined by multiplying the total feet
of weld (given) by the cost per foot as determined in Line 7.
9.5 COST
CALCULATIONS - EXAMPLE 2 Calculate
the total cost of depositing 1,280 ft of weld metal using the CO2 shielded, flux
cored welding
process in the double V-groove joint shown in Figure 14 using the following data.
1. Electrode
- 3/32”, E70T-1 @ 31 volts, 450 amps. 2.
Labor and Overhead - $30.00/hr.
3. Deposition
Rate - 15 lbs/hr. From Table in Figure 10. 4.
Operating Factor - 45% (.45). Average
from Figure 2. 1/2"
1/2" (A)
HEIGHT (B)
BASE Volume
of Weld = 1/2 B
x A x 12
Weight of Steel
= .283 lb per cu. in.
Weight of Weld
= 1/2 (1/2) x 1/2 x 12 x .283
= .424 lbs. CALCULATING
THE WEIGHT PER FOOT OF A FILLET WELD FIGURE
13
