Patent ID: 6457226
Filing Date: 2002-10-01
Classification: B21D,Y10T

Abstract:
A process for shaping, edge-forming and beading sheet metal parts by means of a beading machine, wherein said process comprises the following steps:a. inserting a first end of a first sheet metal part into a first beading machine (10) with a first beading roller pair including upper and lower beading rollers (12,14) and making it pass there through, with a limit stop (16) being provided in said lower beading roller (14) and extending along said feed gap (32) up to a pressing and bending surface (24), and with a first forming operation being performed on said first end of said first sheet metal part; b. inserting said first end of said sheet metal part into a second beading machine (10â€²) with a beading roller pair including upper and lower beading rollers (12â€², 14â€²) and making it pass there through, with a limit stop (16â€²) being provided in said upper beading roller (12â€²) and being located in the transition from said feed gap (32) to said pressing and bending surface (24), and with a second forming operation being performed on said first end of said first sheet metal part; c. inserting a first end of a second sheet metal part into said first beading machine (10) with said beading roller pair including upper and lower beading rollers (12, 14) and making it pass there through, with a limit stop (16) being provided in said lower beading roller (14) and extending along said feed gap (32) up to said pressing and bending surface (24), and with a first forming operation being performed on said first end of said second sheet metal part; d. joining said first ends of said first and second sheet metal parts together and placing said joined sheet metal parts into a third beading machine (10â€³) with a beading roller pair including upper and lower beading rollers (12â€³, 14â€³) and making them pass there through, with a limit stop (16â€³) being provided in said upper beading roller (12â€³) and extending along said feed gap (32) up to said pressing and bending surface (24), whereby a close and non-detachable connection of said first and second sheet metal parts is obtained.