Vibration cutting which is origin of "using vibration to restrain vibration" is a new compoundcutting machining techniques and its cutting advantages are increasingly marked.
振动切削作为一种源于“以振抑振”的复合切削加工新工艺，其不可比拟的切削优势日益显著。
2
Based on the conditions of processing facilities in enterprises, the thesis develops the compound dies of cutting edge and punching round holes of the tractor frame.
针对企业加工设备条件的限制研制了拖拉机机架切边冲孔复合模具。
3
By studying ultrasonic amplitude transformers to meet the requirements of an ultrasonic vibration cell cutting system, a new compound cone step type amplitude transformer is constructed.