Metal deforming – With cleaning – descaling – or lubrication of work or product – Lubricating
Patent
1983-01-26
1985-07-16
Weston, Caleb
Metal deforming
With cleaning, descaling, or lubrication of work or product
Lubricating
72264, 2642092, 264564, 264565, 425 97, 425107, 15624414, B21B 4502
Patent
active
045288321
ABSTRACT:
Extrusion apparatus wherein a hollow cylindrical workpiece is advanced over the outer surface of a mandrel and through an extrusion die by motive force applied to the outer surface of the workpiece by an advancing drive member having an inner surface in operative engagement with the outer surface of the workpiece to produce a hollow cylindrical product of reduced diameter, and wherein a first moving force is required to produce relative movement between the mandrel and the workpiece and wherein a second moving force is required to produce relative movement between the drive member and the workpiece, the improvement wherein various structure are provided for reducing the first moving force relative to the second moving force to enhance the extrusion process and thereby increase its efficiency.
REFERENCES:
patent: 2616126 (1952-11-01), Merck et al.
patent: 4319476 (1982-03-01), Fuchs, Jr.
patent: 4363611 (1982-12-01), Austen et al.
Heitbrink Timothy W.
Rhodes, Jr. R. Gale
Weston Caleb
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