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        沖壓液壓成形技術問世 解決航空鈑金部件起皺開裂難題

        科技日報沈陽6月8日電(記者 郝曉明)航空航天裝備中,鈑金類零件均占總零部件數量、制造工作量的20%以上,而高強鋁、鎂、鈦等輕質合金的鈑金類零件在制造過程中,因其塑性差,成形過程中容易起皺和開裂,一直困擾我國航空領域對鈑金零件的輕量化及整體化發展水平。

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        56老熟妇乱子伦视频|思思久久96热在精品国产|久久综合激激的五月天|国内精品久久久久久久coent

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