Method of and device for impressing channels having a small cros

Details Method of and device for impressing channels having a small cros Method of and device for impressing channels having a small cros

1986-07-28

1988-04-05

Larson, Lowell A.

Metal deforming

Process

Deforming sheet metal

72465, 72471, B21D 2210

Patent

active

047350776

ABSTRACT:
The invention relates to a method of impressing channels having a cross-sectional area of less than 1 mm.sup.2, notably less than 3000 .mu.m.sup.2, into the surface of an object, notably for the formation of damping channels of ink jet printer heads. The impression of channels having a small cross-sectional area can be performed with high precision by inserting a wire-shaped element (5) between the surfaces of the object (2) and of a plane die (1) in the position of the channel (3, 4, 12) to be formed, after which the die (1) is pressed until it contacts the surface of the object (2).

REFERENCES:
patent: 2765682 (1956-10-01), Wiley
patent: 4612765 (1986-09-01), Livesay
patent: 4612795 (1986-09-01), Yoshiga

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