Abstract : this paper states a method of substituting forge welding the blank of shelf for casting it . it is on the individual spare parts and small batch production in order to reach low cost and high efficiency 文摘:主要阐述在单件、小批量生产情况下，对采煤机机壳毛坯用锻焊结合的方法成形代替传统的铸造成形方法，以达到生产的低成本、高效率的目的。
