新产品試制时,一般在样品尚未鉴定通过前很少制造工艺装备(模、夹具),以免产品改动时造成模夹具报廢,同时在进度上也不許可。所以,以往对試样工作都依靠鉗工逐只制造,在精度、进度和經济上都存在問題。为此,采用了无凹模冲制。 New product trial, the general in the sample has not been identified before the few manufacturing process equipment (molds, fixtures), so as to avoid product changes caused when the mold fixtures, but also not progress in progress. Therefore, the past work on the sample rely on fitter only by manufacturing, there are problems in accuracy, progress and economy. To this end, the use of non-concave die system.