Abstract
The effect of pulse current on heating performance and thermal deep drawing of SiCp/2024Al composite sheets was studied in this work. The high-intensity pulse current flows through the sheet and generates the tremendous Joule heat. The heating performance and temperature distribution were investigated to confirm process parameters. The temperature of specimen is up to around 673 K at a rate of 13.5 K/s under the current density of 21.7 A/mm2. The stainless steel inserts make temperature difference reduced by 73.3 %. Moreover, the workpiece was successfully deep drawn and exhibited good surface quality. The dimensional accuracy achieved within ±0.2 mm.
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