Flashless and precision forging of connecting rods from P/M aluminum alloys
Flashless and precision forging of connecting rods from P/M aluminum alloys
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P/M 铝合金连杆的无飞边精密锻造
DOI：
10.1016/0924-0136(94)90108-2
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发表时间：
1994
影响因子：
6.3
通讯作者：
D. Ringhand
中科院分区：
文献类型：
--
作者：
K. Siegert;D. Ringhand
最近的粉末生产技术有气体雾化、熔体纺丝、机械合金化和反应铣削[3]-[5]。所有粉末冶金工艺路线的共同特点是从熔融合金中快速提取热能，使之成为固体粉末材料。冷却速率可以上升到105k /see。在接下来的生产步骤中，粉末被挤压和/或锻造成三维形状的结构。压实P/M铝的锻造提供了改进的机械性能，但需要特殊的压实和锻造设备。另一方面，挤压型粉末冶金材料的锻件可以用常规压力机加工。
Recent powder production techniques are gas atomization, melt spinning mechanical alloying and reaction milling [3]-[5]. The common aspect of all P/M processing routes is the rapid extraction of thermal energy from the molten alloy to the state of solid powder material. Cooling rates can rise up to 105 K/see.In the following production steps, the powder is consolidated by extrusion and/or forged into 3 dimensional shaped structures. Forging of compacted P/M aluminum provides improved mechanical properties [6] but requires specific compaction and forging equipment. On the other hand, forging parts from extruded P/M material can be processed with conventional presses.