1882| 5
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這個怎么成形呢 |
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點評
用胎具熱滾,效率比用輪轂鋼低,廢品率高,,設(shè)備復(fù)雜,,少量、多品種可以這么做,,批量還是輪轂鋼,,一般Q235熱滾這個變形有哪難度,滾完還要冷整形,,你說的熱拉傷不可避免,,這個屬于大變形,誰都不好處理,,廢品率高
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