能源科学技术

• hollow billet

  The hollow billet structure result indicated when hollow outside diameter compared to internal K=1.65, the forming force is small.

  空心坯料结构结果表明空心外内直径比K=1.65时,挤压成形力较小。

• blank-billet

  At last the forming method:“blank-billet, core shaft extrusion”is presented.

  提出了“空心坯料、芯轴挤压”的省力成形新方法。