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Path Actuators for Magnetic Pulse Assisted Forming and Punch-less Electro-Magnetic Shearing
| Title: | Path Actuators for Magnetic Pulse Assisted Forming and Punch-less Electro-Magnetic Shearing |
| Author: | Golowin, Scott Michael |
| Description: | Path actuators can be fabricated very quickly and inexpensive, allowing customized products to be brought to market very quickly. Only one sided tooling is required, since an electro-magnetic force is used to drive the work sheet. This eliminates high tolerance problems in matched tooling and could be implemented into a manufacturing process. The path actuators were successfully used in net shape calibration forming of doubly bent U channels and three shearing operations. The path actuator used for calibration forming can be tuned to the requirements of the incoming material and form, by simply varying the discharge energy through the actuator. For both thicknesses of DP 600 (0.035 and 0.057 inches), the doubly bent U channels were formed to 89-90° sidewall angles using 5.6 kilojoules of discharge energy. The path actuator used in a shearing operation required tuning of two variables: offset distance and energy. The coils were designed to create a magnetic pressure on both sides of a shearing edge. Zero offset distance showed the most promise, shearing at the lowest energy. It also showed promise in more complex shapes, without high tolerance issues. The high velocity punch-less shearing method developed here minimizes burrs on shearing and no slivers have been seen on any of the parts sheared. |
| Permanent Link: |
http://rave.ohiolink.edu/etdc/view?acc_num=osu1211986132
http://hdl.handle.net/2374.OX/8839 |
| Date: | 2008 |
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