51吃瓜

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Sheet Metal Processing welding process: for welding of sheet metal processing parts, commonly used welding methods include argon arc welding, resistance spot welding, carbon dioxide gas shielded welding, manual arc welding etc. ??? ???? ???? ????? ?? ??????? ??????? ?? ????? ????? ?????. ??? ????? ?? ????? ?? ?????? ??? ???? ??? ?????? ???? ???? ???? ???? ?????? ?? ?? ?????? ??? ???? ??????? ????? ??? ?? ??? ?? ????? ????? ?? ?????? ???? ?? ???? ????. ???? ???????? ?? ??? CO ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ???? ?????? ??? ????? ????? ??? ??? ?? ??? ??? ????? ????? ?????? ????? ???. Base metal plate ?? ????? ????? ??? ??? ????? ?? ????? ?? ??? ????? ?? ??? ????? ??. ?? ??? ??? ???? ??????? 2 ??? ?? ?? ???? ???? ???? ???? ?? ??? ???? ???? ???? ???? ???? ???? ???? ???? ???? ??? ??? ???? ???

???? ?? ?? ?? ?? ????? ????? ?? ??? ?????? ?? ?????? ?? ?????? ?? ??? ???? ???? ???? ??? ????? ???? ????? ???? ??? ????? ?????? ?? ?? ???? ??? ???? ????? ?? ????? ????? ???? ?? ????? ?????? ?? ???? ????? ????? ????? ???? ????? ?? ???? ?? ??? ???? ????? ???? ??? ??? ??? ????? ????? ????? ????? ????? ????? ?? ?? ????? ??? ???? ??? ???? ??? ??? ?????? ?? ?????? ???? ?? ????? ???? ??? ????? ????? ??? ???? ??? ???? ???? ?? ????? ???? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ??? ?? ????? ???? ??? ??? ???? ?? ????? ??? ???? ?????? ???? ??? ???? ????? ?? ??? ?? ??? ?? ????? ???? ?? ?? ????? ??? ????? ????? ????? ???? ??? ?????? ??? ????? ?? ??? ?? ????? ??? ?? ????? ??? ??? ?????? ??? ?? ??? ??? ????? ????? ??? ??? ?? ? ?? ??? ?????? ?? ?????? ?? ???? ????? ??? ?? ???? ?? ???? ????? ????? ???? ????? ??? ??? ???? ????? ?? ??? ???? ???? ?? ??????? ???? ?????? ?? ???? ?? ???? ??? ??? ?? ??? ???? ?? ??? ?????? ??? ?? ??? ????? ????? ???? ?? ?? ???? ???? ?? ???? ???? ???? ???? ???? ???? ????? ?? ??? ??????? ??? ???? ??? ??? ??????? ????? ?? ???? ???? ?? ??? ??????? ?? ???? ??? ?? ?? ??? ????? ?? ??? ??? ?? ???? ?? ?? ????? ???? ????? ??? ????? ???? ????? ???? ????? ??? ??? ????? ???? ??? ?? ????? ???? ?? ????? ??. ????? ???? ???? ?? ????? ??? ???? ?? ????? ??? ??? ????? ??? ?????? ??? ????? ???? ???? ??? ???? ?? ????? ???? ?? ???? ?? ????? ???? ?? ????? ???? ?? ???? ?? ???? ?? ???? ????? ??? ????? ???? ??? ???? ?? ???? ??? ??? ?????? ?????? ???? ?? ????? ?????? ??? ????? ????.

Sheet metal processing spraying process: metal plates appearance often reflects the quality of later products, so spraying process is particularly important. ??????? ??????? ??? ???? ?? ??? ??? ????? ????? ??????? ????? ??? ???? ????? ?? ?? ?? ??? ???? ??? ????? ??? ?????? ?? ???? ???? ??? ???? ??? ???? ???? ???? ?? ????? ??. ?????? ?? ???? ??? ???? ?? ??????? ???? ?? ????? ?? ????? ????? ????. ??? defects or joints ?? ??? ??? ?? ??? ???? ???? ??. ???? ????? ???? ?? ??? ??? ??? ?????? ????? ?? ????? ??? ??? ???? ????? ??? ?????? ???? ???? ?? ??? ???? ???? ?? ?? ??? ????? ??? 200 °???? ?? ??? ????? ??? ??? ???? ????? ??? ??? ????? ???? ???? ??? ???? ?? ???? ?? ?? ?? ????? ?? ????.

??? ????? ?????? ?? ?????? ????? ????? ????? ??? ?????? ????? ?? ???? ???? ????? ????? ??? ??? ???? ?? ???? ?? ????? ???? ?? ?????? ?????? ???? ??? ????? ??? ??. Related research has accelerated the development of sheet metal parts to a certain extent and is also useful for their accurate processing. ??? ???? ????? ?? ????? ?? ???? ???? ?? ?? ??? ??? ??? ??? ??? ????? ?? ????? ?? ???? ??? ???? ?? ?? ??? ??. ?? ?? ????? ?? ????? ?????? ??? ???? ???? ??? ???? ?? ????? ????? ?? ??? ???? ?? ?? ????? ?? ??????? ?? ????? ??? ??????? ???? ????? ??? ?? ?? ????? ?? ??? ??? ????????? ?? ??????? ??? ???? ??? ?? ????? ?? ??? ??????? ?????? ?? ????