| 摘要 |
PURPOSE:To produce efficiently the endless thin metallic band of high accuracy and good quality having fatigue resistance by inserting to mandrel the cylindrical intermediate product which is made by forming a thin metallic plate into cylindrical shape and subjected to a butt welding and by slicing with spinning within the range of specified rolling rate. CONSTITUTION:A metallic thin plate is made cylindrical intermediate product 12 by making it in cylindrical shape 12 and by subjecting to butt welding 11. This intermediate product 12 is inserted to mandrel 15, the one end is fastened by chuck 16, it is made in the prescribed thickness with spinning within the range of 30-70% rolling rate by pressing member 17 and sliced in the prescribed width. This endless thin metallic band has high dimensional accuracy, unspoiled stiffness, no surface flaw and high fatigue resistance and is produced with high efficiency. |
