Lubricant composition for cryogenic forming of aluminum or alumi

Details Lubricant composition for cryogenic forming of aluminum or alumi Lubricant composition for cryogenic forming of aluminum or alumi

1995-12-21

1998-06-09

Larson, Lowell A.

Metal deforming

With cleaning, descaling, or lubrication of work or product

Lubricating

B21B 4502

Patent

active

057619417

ABSTRACT:
The present invention relates to a lubricant composition for press-forming an aluminum or aluminum alloy sheet at low temperatures. The composition contains a component (a): 45 to 90% by weight of one or more hydrocarbons selected from the group consisting of mineral oils, synthetic naphthenes, polybutenes, and poly(mono).alpha.-olefins, and component (b): 10 to 45% by weight of one or more C10-C24 linear or branched fatty alcohols. The ester value of the composition is not more than 70, and the kinematic viscosity is less than 20 cSt at 40.degree. C. When this composition is used in forming aluminum or aluminum alloy sheets, enhanced formability can be obtained, and shapes which could not obtained conventionally can be formed.

REFERENCES:
patent: 3649537 (1972-03-01), Hotten
patent: 4132662 (1979-01-01), Sturwold
patent: 5064546 (1991-11-01), Dasai
patent: 5124055 (1992-06-01), Perozzi
patent: 5240622 (1993-08-01), Nesvadba
patent: 5298178 (1994-03-01), O'Neil et al.
patent: 5320764 (1994-06-01), Camenzind et al.
patent: 5354486 (1994-10-01), Evans

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