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  1. timfitz

    "cold welding" of aluminiumto die when blanking

    Hi all Paper does not apper to make much of a difference and the operators find it very awkward to feed etc. The polishing is a very valid point, the die and punch will both be polished in the oposite direction to the movement. The evapotating lubricant might be an option. Production on this...
  2. timfitz

    "cold welding" of aluminiumto die when blanking

    Hi Goahead Thanks for the ideas. Paper sheets might work I will try today and let you know, talc will give us problems in production of the blanks (printing etc.). We are blanking up to 12 000 components per run and need to clean after every 200 to 300 units. Thanks Timfitz
  3. timfitz

    "cold welding" of aluminiumto die when blanking

    Hi all I have a continuous problem of the aluminium sheet (0.4mm), that I am blanking, welding to the inside of the die. I have tried more and less clearance as well as reducing the die land to about 1mm, all to no avail. Is there any special tool steel that the aluminium wont stick to or a...

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