718合金轴类锻件径向锻造工艺模拟

发布时间：2018-06-16 23:49

  本文选题：高温合金 + 轴类件　； 参考：《工程科学学报》2015年01期

【摘要】：利用Forge模拟软件对718高温合金在径向锻造过程中温度场、等效塑性应变场、最高温度变化和散热情况进行了研究.在第一道次,坯料升温集中在表面至距离心部1/2半径处;第二道次后心部成为温度最高部位,且心部温度较之前趋于均匀,心部温度最终比初始温度升高约45℃;坯料最高温度在径向锻造过程中先升高而后略微降低;在所有散热形式中,热辐射是坯料散热的主要方式;对等效塑性应变的模拟发现,坯料在第二道次锻造后已被锻透.现场取样观察与模拟结果对比显示,模拟结果具有可信性.
[Abstract]:The temperature field, equivalent plastic strain field, maximum temperature change and heat dissipation of 718 superalloy during radial forging were studied by Forge simulation software. In the first stage, the billet heats up from the surface to the radius of 1 / 2 from the center, the center of the second pass becomes the highest temperature, and the temperature of the center tends to be uniform, and the temperature of the center increases about 45 鈩，

本文编号：2028581