The hardness of the tinplate can influence the drawing process in several ways. According to the available information, it is mentioned that the tinplate must have adequate deformation capacity to avoid surface failures during the process. Therefore, it can be inferred that a tinplate with inadequate hardness may have difficulty deforming properly during drawing, which could result in part defects.

However, no specific information is provided on how tinplate hardness directly affects the drawing process. Therefore, no definitive answer can be given as to the exact influence of tinplate hardness on the drawing process. It is possible that the hardness of the tinplate may affect other aspects of the process, such as fracture toughness or wrinkling, but this is not clearly established in the available information.

In summary, although tinplate hardness may have some influence on the drawing process, there is not enough information available to provide a precise answer as to how it specifically influences the drawing process.

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