CAJ | 학술논문

利用正交试验法设计实验,研究超声波光整强化工艺关键参数对工业纯铁加工后表面粗糙度值的影响情况,借助 SPSS 软件分析得出,频率取值增加的过程中 Ra 值先降低后升高,振幅取值增加的过程中,Ra值初期维持在一稳定数值上,当振幅越过一定数值后 Ra 值开始降低,压力值增加过程中 Ra 值在初期有较高的减速,越过一定值后 Ra值的减速开始降低并趋于平缓.通过微观组织观察发现处理后工件表面位置存在一定厚度约 14~20 . 09μm晶粒细化非常均匀的组织变形层,其沿轴向的分布存在波动性,表层晶粒沿轴向呈层状分布.
이용정교시험법설계실험,연구초성파광정강화공예관건삼수대공업순철가공후표면조조도치적영향정황,차조 SPSS 연건분석득출,빈솔취치증가적과정중 Ra 치선강저후승고,진폭취치증가적과정중,Ra치초기유지재일은정수치상,당진폭월과일정수치후 Ra 치개시강저,압력치증가과정중 Ra 치재초기유교고적감속,월과일정치후 Ra치적감속개시강저병추우평완.통과미관조직관찰발현처리후공건표면위치존재일정후도약 14~20 . 09μm정립세화비상균균적조직변형층,기연축향적분포존재파동성,표층정립연축향정층상분포.
Using the orthogonal experiment theory, this paper designed experiments to study the effects of key parameters of ultrasonic finishing strengthen process on surface roughness of industrial iron. Using SPSS software to analyze the results, during the process of frequency value increasing, Ra value first decreased and then increased; during the process of amplitude value increasing, the initial Ra value is maintained at a stable value. When the amplitude goes over a certain value, the Ra value begins to decrease; during the process of pressure value increasing, the deceleration of Ra values is higher at the beginning, across a certain value Ra values deceleration began to decrease and flatten. The microstructure of treated surface location was observed, and it found that there exists a uniform grain layer along the axial distribution which is about 14-20.09μm thickness, and surface grain is distributed axial.