CAJ | 학술논문

齿轮成形磨削加工为齿轮精加工工艺，在高速成形磨削加工过程中，会产生大量的热。一方面这些磨削热会在齿轮表面产生较高的温度，容易引起工件表面烧伤；另一方面磨削热会在工件表层产生梯度变化较大的温度场，从而形成磨削残余应力，造成工件表层金相组织变化，既会影响齿轮磨削加工的精度，也会影响齿轮使用的寿命。文章借助工程分析软件 Abaqus和Matlab ，基于磨削移动热源理论和三角形热源分布模型，通过磨削接触长度计算，建立了齿轮成形磨削三维温度场仿真模型；利用热‐力耦合分析方法，得到齿轮磨削热应力和应变的数值仿真云图，实现齿轮成形磨削加工温度场及热变形的精确分析，对提高齿轮成形磨削加工精度具有一定的理论意义。
치륜성형마삭가공위치륜정가공공예，재고속성형마삭가공과정중，회산생대량적열。일방면저사마삭열회재치륜표면산생교고적온도，용역인기공건표면소상；령일방면마삭열회재공건표층산생제도변화교대적온도장，종이형성마삭잔여응력，조성공건표층금상조직변화，기회영향치륜마삭가공적정도，야회영향치륜사용적수명。문장차조공정분석연건 Abaqus화Matlab ，기우마삭이동열원이론화삼각형열원분포모형，통과마삭접촉장도계산，건립료치륜성형마삭삼유온도장방진모형；이용열‐력우합분석방법，득도치륜마삭열응력화응변적수치방진운도，실현치륜성형마삭가공온도장급열변형적정학분석，대제고치륜성형마삭가공정도구유일정적이론의의。
Gear form grinding ,w hich is commonly used for gear finish machining ,can greatly improve the precision of gears .But during the process of high speed form grinding ,it will produce large a‐mounts of heat .This grinding heat will generate a high temperature on the surface of the gear that will cause the surface burns ,and will produce larger varying temperature gradient field on the work‐piece surface ,thus forming the residual stress of grinding and causing the work‐piece surface micro‐structure changes ,which will affect the precision of gear grinding and the service life of the gear .In this paper ,by using the engineering analysis software Abaqus and Matlab ,the three‐dimensional tem‐perature field simulation model of gear form grinding is established based on the theory of moving grinding heat source and triangular heat distribution model and the calculation of grinding contact length .The numerical simulation cloud chart of gear grinding heat stress and strain is gotten by using the thermal‐mechanical coupled analysis method , achieving the accurate analysis of the gear form grinding temperature field and thermal deformation .The study has theoretical significance for impro‐ving the precision of gear form grinding .