Evaluation of polymers as lubricants in the extrusion of aluminum

Journal Article · Thu Jan 01 00:00:00 EST 1981 · Am. Soc. Mech. Eng., (Pap.); (United States)

OSTI ID:5154944

Suresh, S; Bahadur, S

The lubricating behavior of polytetrafluroethylene, polyvinyl chloride, polychlorotrifluoroethylene, low density polyethylene, and high density polyethylene powders in the extrusion of 1100-0 aluminum has been investigated in terms of the extrusion force requirement and the quality of extrudate surface finish. Extrusion experiments which provided a measure of the extrusion force and friction force with varying ram travel were performed under both ambient and high temperature conditions. From these data the variation of coefficient of friction with ram travel and normal pressure had been calculated using the analysis based on von Mises' yield criterion and spherical velocity fields. The effect of polymer powder particle size on the extrusion force was investigated. 13 refs.

• Research Organization: Univ of Calif, Berkeley
• OSTI ID: 5154944
• Journal Information: Am. Soc. Mech. Eng., (Pap.); (United States), Vol. 81-Lub-21
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
EXTRUSION
FRICTION
LUBRICANTS
LUBRICATION
ORGANIC POLYMERS
SCANNING ELECTRON MICROSCOPY
ELECTRON MICROSCOPY
ELEMENTS
FABRICATION
MATERIALS WORKING
METALS
MICROSCOPY
ORGANIC COMPOUNDS
POLYMERS
360101* - Metals & Alloys- Preparation & Fabrication