摘要
介绍了球墨铸铁压缩机机体铸件的结构及技术要求,详细阐述了采用无模生产方式、运用3D打印技术快速打印砂型、快速生产压缩机机体铸件的一种铸造方法,首件验证合格交付.最后指出:(1)通过使用3D打印技术与传统铸造相结合的生产方式,大大缩短了新产品研发试制周期,较传统生产铸件研发周期至少缩短70％;(2)采用3D打印技术生产砂型,不受结构限制,内腔芯与上层砂芯做成整体,整体打印、施涂,既减少了砂芯数量,又降低了组芯合箱难度,有效控制了尺寸精度.
Abstract
The structure and technical requirements of nodular iron compressor body castings were introduced.A casting method that employed a mold-less production approach and utilizes 3D printing technology for rapid sand mold production was elaborated.The first sample passed verification and was delivered successfully.Finally it was pointed out:(1)Combining 3D printing technology with traditional casting significantly shortened the development and trial production cycle of new products by at least 70％compared to traditional methods.(2)3D printing technology for sand mold production was unrestricted by structure,enabling the integration of internal cores and upper sand cores into a single unit,thus reducing the number of sand cores and simplifying core assembly,effectively controlling dimensional accuracy.
维普
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