It is pointed out that the cross cracking, bending, distorting and twisting on the asymmetry extruded profile are caused by a vortex flow field in the deforming body of extrusion processes.
英
美
- 分析了型材擠壓過(guò)程中各階段的網(wǎng)格畸變情況,給出了擠壓變形時(shí)的流速、應變和應力分布,揭示了造成異型型材擠壓時(shí)出現扭擰、波浪和彎曲等缺陷的重要原因是變形體內存在一個(gè)渦流場(chǎng)。
