—- Deep Draw Fundamentals: Part 2

Continuing from last week’s post, the blank for the part to be drawn is removed from the strip and moved into the transfer slide. The transfer slide carries the blank to the first draw operation or station. At this station the blank is drawn to its first shape. The transfer slide then returns to its original position and is now ready to accept the next blank.

Once the transfer slide is in position to receive the next blank, fingers that are attached to the slide now position themselves to move the next blank to the first station. At the same time the first blank which was formed to its initial shape is moved from the first station to the second. This process is repeated until the slide is filled and every station has a part in it. Once the stations are full every revolution of the press produces a completed part.

As the machine continues running heat is generated during the drawing operations stabilizing the tooling which helps with the flow of the material. When a drawn part is completed through the last station of the press, the part is work hardened and subsequently harder than the than the original strip of material due to the working/compressing of the material.