cutting property
4.The microstructure and mechanical properties of minor Sn alloying lead-free and free-cutting Al-Mg-Si alloy rod with different treatments were investigated using mechanical property test,XRD analysis,SEM and TEM.
5.In this paper we have researched mainly Real Time Embedded Operating System, including the develop process of BSP for Embedded Operating System, the cutting-down of RTOS, the RTNP model in AOS, and the implement of Internet Service for AOS, in detailed as follows:(1) Give the main property of Embedded Operating System, comparethe characteristics of popular EOS such as VxWorks, QNX, Window CE, Embedded Linux, Embedded Window XP, and provide the rule for select a operating system that will meet the need of AOS.
6.The influence of centrifugal force on the free frequency of round saw blade for metal hot-cutting is analyzed with FEM software. The result indicates that the centrifugal force will increase the free frequency of saw blade, especially for low-frequency, thereby the influence of centrifugal force on the free frequency of saw blade should be considered during the acoustic vibration property of saw blade is studied.
