Crown Welding Repair

Bliss (SE1-1250)

We were contacted to repair cracking in the crown walls of 1250 ton press.  Upon arrival, we carried out a detailed inspection and found the crown to be in very bad condition.  It was clear that crack repair was not going to be the best option.  We proposed the removal of a very large section of the rear crown wall.  After the removal of this section, we fabricated an insert plate to match the original specs.  The plate’s insert point was 100% welded (over 600 lb. of welding rod).  The front side of the crown was heavily cracked as well.  These cracks were repaired by more conventional methods and 100% welded.

After all welding was completed, the main pin housings were align-bored on site.

 

Photographic Record:

Rear crown wall (outside) numerous cracks present Rear crown wall (outside) numerous cracks present


New cracks and old repaired area Segment to be removed (layout)


Starting to cut the side wall Cutting the side wall


Removing the effected section of crown wall Segment removed and cracks gouged


Crown ready for new insert New prefabricated crown wall insert


Insert plate in place Welding on the inserted plate


Locating all the cracks on the front side of the crown Welding on the front side of the crown


Cracking around the main pin housing (front side of crown) Same area – repaired


Rear side of crown (inside) after repair Rear side of crown (outside) after repair (insert area)


Rear side main pin bore Front side main pin bore