Optimization Analysis of Micro-Hole Machining Parameters of Ultrasonic Assisted Rotary Drilling for Hard and Brittle Materials
The toughened glass was selected as the representative of hard and brittle materials,and the surface processing of toughened glass was tested by the rotary ultrasonic technology,which can realize the optimization of ultrasonic assisted rotary drilling micro-hole processing parameters,and the orthogonal test method was used to select the optimal parameter conditions.The results show that the factors affecting the diameter of micropores are listed as loading force,the ultrasonic power and free abrasive size in order of importance.The order of importance of the factors affecting the depth of micropores is ultrasonic power,free abrasive size and loading force.The optimal scheme was determined as follows:the loading force was equal to 0.7N,the out-er diameter of free abrasive was 3μm,and the ultrasonic power ratio was equal to 70%.With the increase of the loading force,the micropore diameter is very small and the pore depth is obviously shortened when the ultrasonic power is used to treat it.When set-ting low loading force and high ultrasonic power,larger depth of micropores are formed,and the diameter of micropores is also significantly increased.This research has a good practical guiding significance for improving the quality of micropores and pro-cessing efficiency of hard and brittle materials,and is easy to be popularized and applied.
Hard Brittle MaterialsMicroporousLoading Force ControlRotary Ultrasonic Machining
NETL
NSTL
万方数据
