CAJ | 학술논문

采用真空烧结法制备超细YW2 A和传统YW2硬质合金刀具，测试其微观结构与机械性能，以切削速度作为变量，车削06Cr19Ni10不锈钢。用测力仪YDC-Ⅲ89B及便携式粗糙度仪TR100分别测量切削力和零件表面粗糙度，光学显微镜、工具显微镜XGJ-1及扫描电镜S-3400N分别用于金相和刀具磨损检查。结果表明：与YW2相比，YW2A具有更高的硬度与抗弯强度，切削加工时的切削力及表面粗糙度值稍低，氧化磨损程度较小，但两种刀具都表现为剥落磨损为主。
채용진공소결법제비초세YW2 A화전통YW2경질합금도구，측시기미관결구여궤계성능，이절삭속도작위변량，차삭06Cr19Ni10불수강。용측력의YDC-Ⅲ89B급편휴식조조도의TR100분별측량절삭력화령건표면조조도，광학현미경、공구현미경XGJ-1급소묘전경S-3400N분별용우금상화도구마손검사。결과표명：여YW2상비，YW2A구유경고적경도여항만강도，절삭가공시적절삭력급표면조조도치초저，양화마손정도교소，단량충도구도표현위박락마손위주。
Ultrafine YW2A and traditional YW2 cemented carbide cutters were prepared by vacuum sintering,06Cr19Ni10 stain-less steel was turning under variable cutting speeds. OM,dynamometer (YDC-Ⅲ89B),portable roughness tester (TR100)and SEM (S-3400N)were used for examination of metallographics,cutting forces,surface roughnesses and tool wears respectively. Compared with YW2,YW2A has higher hardness and traverse strength,lower cutting force and better surface quality,smaller oxidation wear,but both tools show spalling wear mainly.