Specifications
The Interlaken Draw Bead Simulator (DBS) System is a two axis hydraulic system used for friction testing on sheet metals. There are two hydraulic actuators positioned at a 90 degree angle. The Bead actuator provides the draw bead loading, which forces the draw beads together either squeezing the sample or providing a prescribed clearance with a roller tool. The Draw actuator provides the draw force to pull the sheet metal specimen through the draw beads. Both actuators utilize force sensors and the draw actuator also utilizes a position sensor. The two actuators can be independently controlled using either force, or position if available, as a feedback. The typical work that is done on sheet metal samples is a clamping operation on one end of the specimen strip, while the Bead actuator forces the draw bead tooling together over the opposite end of the strip. The Draw actuator then pulls the specimen strip through the draw bead tooling one time.