| 摘要 |
A process for manufacturing fuel tanks by blast shaping of steel is described, preferably stainless steel and occasionally, another type of carbon steel, especially for the type of fuel tanks to be assembled in automobiles, with any simple or complex, reinforced shape and with a wall thicknesses permitting up to a 50% weight reduction with regard to conventional tanks. The process comprises the preparation of flat or not flat metallic pre-forms, with identical or different dimensions, able to be eventually subjected to pre-heating, in order to then be placed into a mold which has the impression which is desired to be transferred, and to be subjected to a blast shaping operation with the use of a suitable fluid (liquid, gas or mixture of both), with the eventual application of intermediate heating operations where applicable.
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