The proliferation of new coated steels, primarily zinc-based, has highlighted the need for understanding the interactions among the components of the forming system - part design, die design, material, lubrication, and press. Specialized laboratory tests have recently emerged to duplicate and measure quantitatively the sum of these interactions as a function of different lubrication conditions. The coefficients of friction derived from the DBS (Draw Beam Simulator) and the DF (Dome Friction) tests are used in this paper to document a number of system interactions. The results from these simulative friction tests are confirmed by experiments conducted on a highly instrumented, laboratory controlled, test pan die. The conclusion is reached that press shop needs are best met by use of a single lubricant which is insensitive to other components of the forming system.
Formability Criteria for Selecting Sheet Metal Lubricants
Sae Technical Papers
SAE International Congress and Exposition ; 1988
01.02.1988
Aufsatz (Konferenz)
Englisch
Lubricants , Metals , Forming , Simulators , Stamping , Documentation
Formability criteria for selecting sheet metal lubricants
Kraftfahrwesen | 1988
|The Effects of Zinc Coatings, Die Materials and Lubricants on Sheet Metal Formability
SAE Technical Papers | 1986
|The Effects of Zinc Coatings, Die Materials and Lubricants on Sheet Metal Formability
Kraftfahrwesen | 1986
|Use of dry lubricants in sheet metal forming
Kraftfahrwesen | 2008
|Understanding blank holder effect on formability of sheet metal stampings
Kraftfahrwesen | 1989
|