基于量热法与温度补偿技术的镍基合金切削热分配试验研究

肖茂华; 何宁; 李亮; 陆爱华

基于量热法与温度补偿技术的镍基合金切削热分配试验研究

1.
南京农业大学工学院, 南京 210031;
2.
南京航空航天大学机电学院, 南京 210016

基金项目:

国家自然科学基金项目(50975141)

国家科技支撑计划项目(2008BAF32B09)

中央高校基本业务费-南京农业大学青年科技创新基金项目(KJ2012026)资助

详细信息

作者简介:
肖茂华(1981-)，讲师，博士，研究方向为高速切削、先进制造技术，xiaomaohua@njau.edu.cn

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出版历程
- 收稿日期: 2012-01-29
- 刊出日期: 2015-06-10

Experimentally Studying Cutting Heat Distribution in Nickel Alloy Milling with Calorimetric Method and Temperature Compensation Method

1.
College of Engineering, Nanjing Agricultural University, Nanjing 210031;
2.
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics andAstronautics, Nanjing 210016

摘要

摘要: 设计量热法试验,测量了高速铣削镍基合金时切屑带走的热量,并对热量损失进行了补偿。通过测量切削力,得到主切削力的功率,并计算了不同切削速度下切屑与切削力的功率比。试验表明:随着切削速度的增加,切屑与切削力的热功率比也增加,切屑带走的热量增多;镍基高温合金切削时的切削热分配与碳钢切削时的切削热分配相比,其切屑带走的热量比例要小得多,相应地传入刀具的热量比例会比较高,这就会使得镍基高温合金在切削加工时会产生比较高的切削温度,刀具磨损也要严重的多。
- 量热法 /
- 温度补偿 /
- 镍基合金 /
- 切削热
Abstract: The method for measuring the thermal power of a chip during high-speed nickel alloy milling based on calorimetric method was introduced in this paper.The temperature variation of water with the surroundings during the closed high-speed nickel alloy milling was measured,and the cutting heat in the chip was calculated and compensated for.The power generated by the main cutting force was calculated by measuring the cutting force.The ratio of power in the chip that was generated by the cutting force was calculated too.The experimental study shows that the ratio of power in the chip that was generated by the cutting force increases gradually with the increase of the cutting speed and that the cutting heat carried away by the chip increases too.The cutting heat distribution in the nickel alloy cutting was compared with that in carbon steel cutting; the comparison results showed that the ratio of power in the nickel alloy chip was much smaller.Accordingly,the heat proportion of the incoming tool,which generated higher cutting temperature and caused more serious tool wear in nickel alloy cutting,was relatively higher.
- carbon steel /
- milling(machining) /
- nickel alloys /
- wear of materials

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参考文献(10)

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