Search Results for weld pool

Fig. 6 Temperature isotherms near the weld pool in Barlow's weld. Note that contour “I” has two pools: one under the arc and one in the region behind the arc. This heat source was modeled as a prescribed-temperature region. More

Fig. 2 Schematic showing typical weld pool dynamics of a submerged arc weld More

Fig. 6 Temperature isotherms near the weld pool in Barlow's weld. Note that contour I has two pools: one under the arc and one in the region behind the arc. This heat source was modeled as a prescribed-temperature region. More

Fig. 7 Cross section of weld pool. Source: Ref 14 More

Fig. 7 (a) Experimental weld pool geometry. The vertical line shows the joint of the two plates. (b) Calculated temperature and velocity fields in the weld pool. The contours represent the temperatures in degrees Kelvin, and the vectors represent the liquid velocity. (c) The contours represent More

Fig. 10 Distribution of turbulent variables in the weld pool. (a) Dimensionless viscosity, μ t /μ. (b) Dimensionless thermal conductivity, k t / k . (c) Turbulent kinetic energy, m 2 /s 2 × 10 −4 . (d) Dissipation rate of turbulent kinetic energy, m 2 /s 3 × 10 −4 . Adapted from Ref 15 More

Fig. 12 Typical sequence showing the impinging of droplets, weld pool dynamics, and temperature distribution (side view). Adapted from Ref 83 More

Fig. 5 Typical weld pool/heat source interaction times as a function of heat-source intensity. Materials with a high thermal diffusivity, such as copper or aluminum, would lie near the top of the band, whereas magnesium alloys and steels would lie in the middle. Titanium alloys, with very low More

Fig. 5 Effect of arc jet on depression of weld pool More

Fig. 5 Plot of electron beam weld pool ratio ( d / w ) versus electron beam power density for low-sulfur (20 ppm) and high-sulfur (>120 ppm) type 304L stainless steel. Keyhole formation begins at approximately 2 × 10 3 W/mm 2 . More

Fig. 9 Effect of arc pressure on the weld pool for stationary and traveling welds. (a) v = 0. (b) v > 0, with weak radial pressure gradient, p 1 . (c) v > 0, with strong radial pressure gradient, p B . Source: Ref 13 More

Fig. 12 Schematic showing typical flow pattern in a submerged arc weld pool. Source: Ref 20 More

Fig. 9 Effect of electrode tip geometry and shielding gas composition on weld pool shape for spot-on-plate welds. Welding parameters: current, 150 A; duration, 2 s More

Fig. 1 Typical weld pool-heat source interaction time. Source: Ref 4 More

Fig. 2 Submerged arc weld pool schematic More

Fig. 7 Effect of increase in welding parameters on weld pool form factor. (a) Optimum weld pool dimensions (shallow weld pool, high form factor, acute angle between grains). (b) Undesirable weld pool dimensions (deep weld pool, low form factor, obtuse angle between grains). Source: Ref 6 More

Fig. 17 Silicone rubber replication technique used to evaluate decanted weld pool shape. Source: Ref 21 More

Fig. 3 Typical weld pool-heat source interaction times as function of heat-source intensity. Materials with a high thermal diffusivity, such as copper or aluminum, would lie near the top of this band, whereas steels, nickel alloys, or titanium would lie in the middle. Uranium and ceramics More

Fig. 5 Plot of electron beam weld pool ratio ( d / w ) versus electron beam power density for low-sulfur (20 ppm) and high-sulfur (>120 ppm) type 304L stainless steel. Keyhole formation begins at about 2 × 10 3 W/mm 2 . More

Fig. 9 Effect of arc pressure on the weld pool for stationary and traveling welds. (a) v = 0. (b) v > 0, with weak radial pressure gradient, p 1 . (c) v > 0, with strong radial pressure gradient, p B . Source: Ref 12 More