挤压温度对汽车差速器壳件性能的影响
发布时间:2018-10-26 20:11
【摘要】:采用6种不同的挤压温度进行了7075铝合金汽车差速器壳件的挤压成形,并测试和分析了室温下壳件试样的拉伸性能和冲击性能。结果表明:在模具预热温度390℃,挤压筒温度415℃和挤压速度0.3 m/min时,随挤压温度从280℃增大到400℃,试样的拉伸性能和冲击性能均先提高后下降。280℃挤压时壳件的拉伸性能和冲击性能均最差。与280℃挤压相比,385℃挤压时壳件的抗拉强度、屈服强度、冲击吸收功分别增大43、44 MPa、15 J,断后伸长率减小2.1%。7075铝合金汽车差速器壳件的挤压温度优选为385℃。
[Abstract]:The extrusion forming of 7075 aluminum alloy automobile differential housing was carried out at 6 different extrusion temperatures. The tensile and impact properties of the shell samples at room temperature were tested and analyzed. The results show that when the die preheating temperature is 390 鈩,
本文编号:2296823
[Abstract]:The extrusion forming of 7075 aluminum alloy automobile differential housing was carried out at 6 different extrusion temperatures. The tensile and impact properties of the shell samples at room temperature were tested and analyzed. The results show that when the die preheating temperature is 390 鈩,
本文编号:2296823
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