Abstract
The explosive ‘form-cladding’ is a combination of two different processes, namely explosive forming and explosive cladding, performed in one step. Two sheet metals were formed and cladded into a hemispherical dome in one detonation. The force of precisely controlled explosion causing a higher velocity impact on the sheet metals was used to achieve a metallurgical bonding between them and explosive shaping of these metals takes place as well. The evaluation of this process was based on the quality of the microstructure of the mating interfaces. A wavy interface reflected a good cladding while grain directionality ensured good forming. The feasibility of this process was ascertained with similar metals (copper-copper). This paper reports a detailed study on the explosive ‘form-cladding’ process. The difficulties encountered, the defects observed and the remedial measures suggested are also discussed.
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