Manufacture of expanded sheet metal articles

Details Manufacture of expanded sheet metal articles Manufacture of expanded sheet metal articles

1990-07-18

1991-10-29

Gorski, Joseph M.

Metal working

Expanded metal making

428596, B21D 3104

Patent

active

050603523

ABSTRACT:
A method of making an expanded sheet metal article comprising the steps of forming a workpiece of lesser area than that of the article, slitting the area of the workpiece to form a plurality of tongues extending longitudinally and at an angle to the longitudinal in a non-functional zone of the article to render the non-functional zone extendable, shaping the remainder of the workpiece as needed to form the article, and extending the non-functional zone to produce the final article.

REFERENCES:
patent: 1195221 (1916-08-01), Herr
patent: 3111204 (1963-09-01), Phare
patent: 3740812 (1973-06-01), Ryan
patent: 3812558 (1974-05-01), Watanabe
patent: 3962763 (1976-06-01), Jury
patent: 4545170 (1985-10-01), Shirey

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