Single groove drawing block assembly

Details Single groove drawing block assembly Single groove drawing block assembly

1977-09-16

1979-04-17

Keenan, Michael J.

Metal deforming

By pulling workpiece through closed periphery die

Utilizing specified work moving means

B21C 114

Patent

active

041493982

ABSTRACT:
A rotating block assembly used with a die for drawing thin walled metallic tubing in which the block has a continuous single groove for receiving and tensioning the tubing between the block and die. The contour of the groove is formed by two identical opposite surfaces generated on a continuous radius having a separating angle between the cooperative surfaces ranging from 17.degree. to 22.degree..

REFERENCES:
patent: 1918237 (1933-07-01), Alden
patent: 2179348 (1939-11-01), Penney
patent: 2943810 (1960-07-01), Seavey
patent: 3106354 (1963-10-01), Kitselman
patent: 3270979 (1966-09-01), Whitacre
patent: 3331566 (1967-07-01), Kitselman
patent: 3881340 (1975-05-01), Hay

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