Method for measuring values of parameters inherent in the drawin

Details Method for measuring values of parameters inherent in the drawin Method for measuring values of parameters inherent in the drawin

1992-12-09

1994-06-14

Jones, David

Metal deforming

With use of control means energized in response to activator...

Metal deforming by use of roller or roller-like tool element

72 10, 72347, B21D 2202

Patent

active

053199510

ABSTRACT:
The model die for measuring values of parameters inherent in the drawing of pieces of sheet metal to produce shaped elements, each including at least one curved surface region which has a critical radius of curvature, has at least one curved surface region which is a copy of the region with critical curvature of the shaped element to be produced. The die has at least one sensor selected from the group comprising pressure, temperature, linear-displacement, vibration, breakage and thickness sensors for measuring the value of a parameter of the drawing of a model shaped element which can be correlated functionally to a corresponding parameter inherent in the drawing of the shaped element on an industrial scale. If the value measured differs from the value which can be calculated or predicted on the basis of a mathematical model of the drawing method, it can be used to improve the mathematical model which can be used for analysing and/or controlling the drawing method.

REFERENCES:
patent: 3440847 (1969-04-01), Giordano
patent: 4181000 (1980-01-01), Hamilton et al.
patent: 4811582 (1989-03-01), Story et al.
patent: 4878368 (1989-11-01), Toutant et al.
patent: 5099666 (1992-03-01), Sartorio et al.

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