菌式穿孔金屬變形的試驗研究
Experimental Research on Metal Deformation during Cone Roll Piercing
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摘要: 為研究菌式穿孔機穿孔時軋件金屬的變形規(guī)律,進行了穿孔軋卡試驗及變形區(qū)各斷面軋件壁厚測量,計算分析了壁厚變化規(guī)律。在穿孔過程中,金屬存在明顯的管壁增厚現(xiàn)象。提出了在工具設計、調(diào)整參數(shù)方面應遵循的原則。Abstract: To get the law of metal deformation of the work piece being rolled with the cone roll piercing mill,rolling jamming experiment and measurements of wall thickness of different work-piece sizes were conducted,based on which law of the wall thickness variation is calculated and analyzed.It is observed that during piercing,wall thickness of the work-piece being rolled is getting increased obviously.Principles con cerning tool design and parameter setting of the mill are also emphasized.
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