How To Reduce Arc Blow In Welding. To connect ground cable on workpiece against arc blow. In this case a magnetic shunt or runoff tab will reduce the blow.
Arc blow can be controlled or reduced by connecting the work lead to the end of the weld joint and then welding away from the work lead. Arc blow is usually more pronounced at the start of the weld seam. Reduce the welding current - which may require a reduction in arc speed.
Similarly due to the influence of the flux covering no arc blow is experienced in submerged arc welding.
Weld towards the working clamp to reduce forward blow. Reduce the welding current - which may require a reduction in arc speed Angle the electrode with the work opposite the direction of arc blow as illustrated in Figure 3-45. The welding fixture can be a source of arc blow. Shielded metal arc welding with bare or washed electrodes is more prone to arc blow than welding with heavy coated electrodes as the corrective influence of the coating cup is missing.