What should be eliminated where practical during thermite welding?

During thermite welding, it is essential to eliminate any bolt holes where practical because their presence can compromise the integrity and strength of the weld. Bolt holes are typically introduced as part of the assembly of components where mechanical fastening is required. However, during the welding process, these holes can create points of weakness and stress concentrations in the joint being welded.

When thermite welding, achieving a high-quality and solid fusion between the two pieces of metal is crucial. Bolt holes can lead to incomplete fusion or localized weak spots within the weld bead, which can result in failure under load or stress. Additionally, the heat generated during the thermite reaction might not adequately fill or bond to the area surrounding the bolt holes, further weakening the overall structure.

Therefore, eliminating bolt holes when practical allows for a more continuous and uniform material, enhancing the overall strength and reliability of the weld joint created by the thermite process. This practice aligns with the goal of producing the best possible structural integrity in welded components.