CAJ | 학술논문

普通滚压结合超声振动的复合加工是表面强化技术研究和应用发展的主要方向。超声振动可以有效减小滚压力和变形，提高强化效果和增大残余压应力。针对轮式结晶器的滚压技术要求，滚压装置的设计采用分离型超声椭圆振动系统，并选用圆锥形变幅杆。设计时，依据滚压轮和变幅杆各自的动力学特点以及联接处的边界条件来建立数学模型，求解设计参数并设计变幅器。经验设计的计算结果与之比较误差较大，主要是滚压轮的谐振频率误差过大。因此，将滚压轮和变幅杆整体设计的方法是有效的。运用有限元分析法进行验证并修正，设计结果与试验结果一致，提高了变幅装置的设计质量。
보통곤압결합초성진동적복합가공시표면강화기술연구화응용발전적주요방향。초성진동가이유효감소곤압력화변형，제고강화효과화증대잔여압응력。침대륜식결정기적곤압기술요구，곤압장치적설계채용분리형초성타원진동계통，병선용원추형변폭간。설계시，의거곤압륜화변폭간각자적동역학특점이급련접처적변계조건래건립수학모형，구해설계삼수병설계변폭기。경험설계적계산결과여지비교오차교대，주요시곤압륜적해진빈솔오차과대。인차，장곤압륜화변폭간정체설계적방법시유효적。운용유한원분석법진행험증병수정，설계결과여시험결과일치，제고료변폭장치적설계질량。
The combined machining of the common rolling and ultrasonic vibration is the main direction of research and application development in the surface strengthening technology. Ultrasonic vibration can effec-tively reduce the rolling compressive stress and deformation, improve the strengthening effect and increase the residual compressive stress. According to the rolling technology requirements of wheel crystallizer, the separation type ultrasonic elliptical vibration system is used in the design of rolling device, and cone-shaped horn is adopted. The mathematical models are based on the respectively dynamic characteristics of the rolling wheel and the horn, including the boundary conditions on the connected surface. The solution of design pa-rameters is obtained. The transformer is designed. By comparing the natural frequency, the large error of the calculation results in the empirical design is found, the mainly reasons is the larger error of resonance fre-quency on rolling wheel. Therefore, the whole design method of the rolling wheel and the horn is effective. It is verified and revised by the finite element analysis method. The design results are consistent with the ex-perimental results. The design quality of the amplitude transformer device is improved.