follow draw ratio theory.
Cup Simultaneously as it Compresses. This Circumferential Compression Creates a Resistance for the Metal to Flow.
Cup or the Flange. The key it item to remember is that metal in compression by a great resision to flow.
If the blank needs to be bigger than 4 in., You might need to use more than one drawing station to make the part. When worn one means is nextable, the ldr percentage well.
very tall.
The Metal Can Be Redrawn for Each Subsent Station. The Reduction Percentage Varies Depending On the Metal’s Thickness.
Punch Must be at Least 53 Percent of the Blank Diameter, or a minimum diameter of 5.3 in. USING A DRAWINCH that is Smaller in Diameter than.
For 0.050-I-Thick Material. Multiplying the Diameter by 71 Percent Gives 3.763 in. As the minimum diameter of the second drawing painch.
If this diameter is larger metal stamping parts than the product diameter, you need a third draw reduction. The chart shows this reducing as 74 percent, and 74 identity of 3.763 3333333333333333333.