welding design tutorial for correct welding size
weld length for any groove weld, square or skewed, shall be the width of the part joined, perpendicular to the direction of tensile or compressive stress. For groove welds transmit-ting shear, the effective length is the length specified. 2.3.2 Effective Area. The effective area shall be the ef-fective weld length multiplied by the weld size.
Fillet weld size = a = 1/4 in. - Therefore, OK! Lw-min = 1.0 in. - OK. - Lw-min for each length of the weld = 4.0 in. (transverse distance between welds, see J2.2b) - Given length = 5.0 in., which is > Lmin. Therefore, OK! Length/weld size = 5/0.25 = 20 - Therefore, maximum effective length J2.2 b satisfied. Economy in Weld Design - Steelweld size below which a fillet weld is the cheaper solution lies generally in the range 12-16 mm for many applications. Further information on the relative cost of fillet and butt welds can be found in Section 10 of Ref. 7.3. WELD COST ($/m) WELD SIZE (mm) FILLET WELD BUTT WELD 12 16 FIGURE 7.3:Weld cost graph 7.3 Welding Processes
- A Typical Example Welding Design Tutorial for Correct Welding Size Weld Design and Specificationh = throat size! Weld Size vs. Throat Size 1/8 75o 3/8 h = plate thickness = weld size Butt h = 0.707 * plate thickness 0.707 * weld size 1/4 Fillet