In this work, a comprehensive model was established to predict the thermal safety of polymer-bonded explosives (PBXs) in diamond turning. The thermal safety model not only considers the geometrical parameters of diamond tool and process parameters, but also integrates the kinetic law of friction-induced chemical reaction of PBXs chips. Moreover, the Arrhenius thermal decomposition of PBXs chips and its turning Logistic retardation growth model were also unified successfully, and the temperature measurement tool, thermal analysis tests and surrogate face cutting experiments were implemented separately. According to the controllable self-acceleration safe cutting criterion, this novel model reliably predicts the safe cutting zone of HMX-based PBXs. Finally, the turning experiments of PBXs validated that: (1) The combination of high cutting velocity and cutting temperature can induce a sufficient amount of PBXs chips to release uncontrollable chemical energy; (2) The frictional heating interface between the HMX crystal and the diamond tool tip is the most hazardous zone; (3) A reliable evaluation for the turning safety of PBXs requires detailed analyses on the cutting energy, friction time and hot spot distribution, which can be characterized by the theoretical model and cutting curve of T-v.

在这项工作中，建立了一个综合模型来预测金刚石车削中聚合物粘结炸药（PBX）的热安全性。热安全模型不仅考虑了金刚石工具的几何参数和工艺参数，而且还综合了PBXs芯片摩擦诱导的化学反应的动力学规律。此外，PBXs芯片的Arrhenius热分解及其转向Logistic延迟增长模型也已成功统一，并且分别执行了温度测量工具，热分析测试和替代端面切割实验。根据可控制的自加速安全切割标准，该新颖模型可靠地预测了基于HMX的PBX的安全切割区域。最后，PBX的车削实验证实：（1）高切削速度和高切削温度的结合可以诱导足够数量的PBXs碎屑释放出无法控制的化学能；（2）HMX晶体和金刚石工具尖端之间的摩擦加热界面是最危险的区域；（3）要对PBX的转动安全性进行可靠的评估，需要对切削能量，摩擦时间和热点分布进行详细分析，这可以通过理论模型和切削曲线来表征。电视。