高速铣削GH4169镍基高温合金切削温度的议论为了议论GH4169镍基高温合金在高速铣削流程中不同切削用量对切削温度的影响全新系统上线，经受正交推行法对其进行切削仿真，并对铣削加工仿真效力进行判辨，取得切削用量与切削温度的磋磨。为考证仿真效力的合感性和准确性，进行了GH4169镍基高温合金高速铣削加工推行，对比判辨高速铣削推行和高速铣削加工仿的确效力，考证GH4169镍基高温合金高速铣削仿真模子的准确合理。在已说明的加工仿真模子基础上进行单因素推行，议论不同切削用量对切削温度的影响。效力标明：在切削速率、每齿进给量和背吃刀量均增大的要求下，铣削温度齐冉冉飞腾，但添加快率呈着落趋势。

Research on cutting temperature of GH4169 nickel based high-temperature alloy during high-speed milling In order to study the effect of different cutting parameters on cutting temperature of GH4169 nickel based high-temperature alloy during high-speed milling, the orthogonal experimental method was used for cutting simulation, and the milling simulation results were analyzed to obtain the relationship between cutting parameters and cutting temperature.

To verify the rationality and accuracy of the simulation results, high-speed milling experiments were conducted on GH4169 nickel based high-temperature alloy. The results of high-speed milling experiments and high-speed milling simulations were compared and analyzed to verify the accuracy and rationality of the GH4169 nickel based high-temperature alloy high-speed milling simulation model.

On the basis of the established machining simulation model, conduct single factor experiments to study the influence of different cutting parameters on cutting temperature. The results show that under the conditions of increasing cutting speed, feed rate per tooth, and back feed, the milling temperature gradually increases, but the growth rate shows a downward trend.

Nb对GH4169合金管材安排功能的影响经受真空感应、电渣重熔、真空自耗、均匀化热搞定、锻造、热挤压、冷轧、热搞定等工艺取得Nb含量划分为4.90%和5.30%的二种GH4169合金管，在其他要素基本保捏一致的情况下，议论了Nb含量对GH4169合金管材安排功能的影响。效力标明，在交流的热搞定工艺下，随着Nb含量的添加，Nb含量越高，晶粒尺寸越幽微；

200℃和室温抗拉强度、屈从强度齐随着Nb含量的添加而添加；且在GH4169合金管材中的分出相含量也添加。GH4169合金管在不同的固溶热搞定和交流的时效热搞定工艺下，取得GH4169合金管材的晶粒度尺寸在4.0～7.0级，晶粒尺寸越小，管材的抗拉强度和屈从强度越高；在交流的晶粒度下，Nb含量越高，管材的抗拉强度、屈从强度齐随着Nb含量的添加而添加。

The effect of Nb on the microstructure and properties of GH4169 alloy pipes Two types of GH4169 alloy pipes with Nb content of 4.90% and 5.30% were obtained by using processes such as vacuum induction, electroslag remelting, vacuum self consumption, homogenization heat treatment, forging, hot extrusion, cold rolling, and heat treatment.

The effect of Nb content on the microstructure and properties of GH4169 alloy pipes was studied while other components remained basically the same. The results show that under the same heat treatment process, as the Nb content increases, the Nb content increases and the grain size becomes smaller;

The tensile strength and yield strength at 200 ℃ and room temperature increase with the increase of Nb content; And the content of precipitates in GH4169 alloy pipes also increases. The grain size of GH4169 alloy pipes obtained under different solid solution heat treatments and the same aging heat treatment process ranges from 4.0 to 7.0.

The smaller the grain size, the higher the tensile strength and yield strength of the pipes; At the same grain size, the higher the Nb content全新系统上线, the higher the tensile strength and yield strength of the pipe.