1. General information on lubrication
Everyday experience offers many examples of friction, adhesion and wear between solid bodies: a considerable force must be exerted to slide a heavy piece of furniture across the floor, thus overcoming the friction of the furniture's feet on the floor; unmolding a pie or cake after baking can prove problematic due to the adhesion between the dough and the mold if the latter has not been properly buttered beforehand; it's the wear and tear of pencil lead (and the adhesion of graphite to paper) that makes it possible to write on a sheet of paper. Metal shaping poses similar problems:
in wire drawing, excessive wire-die friction causes wire breakage;
in hot forging between deep dies, the formed part can remain bonded to one of the dies.
Practitioners routinely observe a marked...
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Friction, wear and lubrication
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General information on lubrication
References
Suppliers
(non-exhaustive list)
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General sites on production engineering and forming
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General directories of companies offering forming lubricants...
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