We are currently experiencing an issue with the main shaft of our vibrating grizzly feeder used for coal screening. Over time, the shaft has developed minor wear, resulting in some play between the bearing inner diameter and the shaft surface. This issue has also led to frequent bearing failures.
The shaft material is CK45. We are considering the possibility of rebuilding the worn areas using a suitable welding electrode and then machining the shaft back to its original dimensions using a lathe.
Could you please advise on the following:
Is it technically feasible to build up the worn shaft surface using welding and then machine it to original size?
If so, what type of welding electrode would you recommend for CK45 material in this application?
Are there any specific preheating, post-weld heat treatment, or machining precautions we should follow?
Would you recommend this repair method as a reliable solution, or would replacing the shaft be a better long-term option?
Problem in vibrating screwn
We are currently experiencing an issue with the main shaft of our vibrating grizzly feeder used for coal screening. Over time, the shaft has developed minor wear, resulting in some play between the bearing inner diameter and the shaft surface. This issue has also led to frequent bearing failures.
The shaft material is CK45. We are considering the possibility of rebuilding the worn areas using a suitable welding electrode and then machining the shaft back to its original dimensions using a lathe.
Could you please advise on the following:
Is it technically feasible to build up the worn shaft surface using welding and then machine it to original size?
If so, what type of welding electrode would you recommend for CK45 material in this application?
Are there any specific preheating, post-weld heat treatment, or machining precautions we should follow?
Would you recommend this repair method as a reliable solution, or would replacing the shaft be a better long-term option?
Your expert advice would be highly appreciated.
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