| 摘要 |
A method for manufacturing a feeding shaft of a transferring device is provided to prevent eccentricity from being generated between an outer pipe and an inner pipe in a combining operation and to improve straightness of the feeding shaft in a manufacturing process by the inner pipe. A method for manufacturing a feeding shaft of a transferring device includes a step of heating an inner pipe at predetermined temperature(S10); a step of fixing straightness of the heated inner pipe(S20); a step of processing an outer diameter of the inner pipe whose straightness is fixed(S30); a step of inserting the inner pipe into an outer pipe(S40); a step of heating the inner pipe at the predetermined temperature as the inner pipe is inserted into the outer pipe(S50); and a step of rotating and cooling the inner pipe and the outer pipe which are heated and pressed(S60).
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