3. Non-Newtonian lubricants
Recent theoretical work has extended these theories to lubricants of more complex rheology. Let's clarify their nature first.
3.1 Solid" lubricants: the case of cold forging and wire drawing
Lubricant working conditions are particularly severe in cold forming in two major processes:
cold forging operations, which require the metal to undergo considerable deformation, since the metal, in the succession of passes, undergoes large surface expansions which risk dangerously thinning the lubricating film, damage to the film being favored by two other factors: high contact pressures, due to the geometry of the operation (extrusion, in particular) and the significant work hardening of the metal, and high temperatures;...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
The Ultimate Scientific and Technical Reference
This article is included in
Metal forming and foundry
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Non-Newtonian lubricants
Bibliography
Suppliers
(non-exhaustive list)
-
General sites on production engineering and forming
-
General directories of companies offering forming lubricants...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
The Ultimate Scientific and Technical Reference