Method and apparatus for processing sheet metal
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 27, 2001
Grant Date -
N/A
app pub date -
Feb 24, 2000
filing date -
Feb 24, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sheet metal processing apparatus comprises a stretcher-leveler and a surface conditioner in combination. The stretcher leveler has an input end, an output end, and a stretching mechanism between the input and output ends. The input end of the stretcher-leveler is adapted to receive at least a portion of a metal sheet to be processed. The stretching mechanism has a plurality of gripping members. The gripping members are adapted for gripping the metal sheet and stretching the portion of the metal sheet between the gripping members past its yield point to eliminate internal residual stresses therein. The stretcher-leveler is adapted to then discharge the stretched portion of the metal sheet from the output end of the stretcher-leveler. A surface conditioner is positioned adjacent the output end of the stretcher-leveler. The surface conditioner is adapted to receive the portion of the metal sheet discharged from the output end of the stretcher-leveler. The surface conditioner has at least one rotating conditioning member adapted for engagement with a surface of the metal sheet.
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