Welding a half shaft on both sides of a box, how to ensure the coaxiality of these two half shafts? Is the connection between the axle shaft and the box welded or flanged?

1. After unpacking, measure the coaxiality of the two welding through holes with a projector, so as to ensure the accurate position of the welding holes first.

2. If the installation accuracy required for shaft welding is extremely high, it is necessary to ensure the post-welding accuracy through the pre-welding limit fixture. I feel that the physical means of flange connection should be more appropriate. After all, stress release after welding and welding forming will affect the accuracy.

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