Patent · US Expired

Method for deburring sheet metal parts, such as can covers

US4309951A · kind A · utility

1Cited by

5References

4Claims

0Family size

Assignee

Schmalbach-Lubeca AG · DE

Inventors

Helmuth Supik · Braunschweig, DE
Hans-Juergen Schlinsog · Lehre, DE

Key dates

Filing date	Nov 26, 1980
Grant date	Jan 12, 1982
Priority date	—
Expiry date	Nov 26, 2000

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65D2517/5059
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

Sheet metal parts such as can covers, or the like, are deburred around the edges by an electrochemical treatment step in which the sheet metal to be deburred forms the anode in an alkaline electrolytic bath. The material removal is substantially limited to the location of the stamping burrs and edges around holes in the sheet material by controlling the current flow or current density in response to the physical size of the burr which is mechanically sensed and by properly limiting the duration of the current flow.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.