Process for manufacturing shutter screen blades

Details Process for manufacturing shutter screen blades Process for manufacturing shutter screen blades

1981-07-06

1983-04-26

Husar, Francis S.

Metal working

Method of mechanical manufacture

Obtaining plural product pieces from unitary workpiece

72405, B23P 1700, B21J 1100

Patent

active

043808573

ABSTRACT:
A process for manufacturing blades of shutter screens wherein the blades are first formed by punching a metal plated thin plastic sheet material by a first press operation carried out thereon with end parts left connected with other portions of the plastic material. After being coated with a coating material and dried under this condition, the connecting end parts of the blades are cut off the material by a second press operation.

REFERENCES:
patent: 4026226 (1977-05-01), Hahn et al.
patent: 4130933 (1978-12-01), Demrick

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