Lubrication

 

Lubrication for Better Extrusion

  At the end of each extrusion cycle, the dummy block must separate cleanly from the butt, without removing the section from the die, and without breaking the mandrel cone in the dummy block.

Aluminum sticking can be a serious problem, especially when using the softer alloys, and with larger billets. It is absolutely essential, therefore, to lubricate both the billet and the dummy block to make separation easier.