| 摘要 |
PURPOSE:To make it possible to mass-produce high precision scroll members using a very simple tool by constituting the device such that the spiral body wall surface of a scroll member is cut by shifting either a processing tool or the scroll member in the axial direction. CONSTITUTION:A scroll member A formed in a raw shape is fixed on a processing bench 34 in the same direction as the spiral one of a spiral body 32 for processing with the accuracy within the range where the cost for forming can be allowed and the whole of a processing tool 30 is shifted axially. Then, the one side wall surface of the spiral body of the member A formed into a raw shape is cut by a blade 33 provided on the wall surface of the spiral body 32. Furthermore, cutting by turning several times the tool 30 in the rotary direction by a prescribed angle and again shifting it in the axial direction causes more precise cutting processing to be performed. Consequently, it is possible to mass- produce high precision scroll members using a single tool. |
