CAJ | 학술논문

以65％高体分SiC颗粒增强铝基（ SiCp/Al）复合材料为试件材料，采用热丝化学气相沉积（ Chemical Vapor Deposi-tion，CVD）法制备的硬质合金常规（μm级）金刚石薄膜涂层立式键槽铣刀进行铣削试验，研究铣削力的变化规律、工件表面的微观形貌，以及刀具的磨损和刀具寿命，并与未涂层硬质合金铣刀进行对比，分析了该材料的铣削机理，评价了金刚石薄膜涂层铣刀的涂层效果。结果表明：在相同的切削用量条件下，金刚石涂层刀具比未涂层硬质合金刀具的各向铣削力降低20％～60％；加工初期，未涂层硬质合金刀具所获得的工件表面质量较好，但在加工中后期，未涂层硬质合金刀具所获得的工件表面质量迅速恶化，而金刚石涂层刀具所加工工件的表面质量较为稳定，刀具寿命比未涂层硬质合金刀具提高了3～5倍，因此，常规金刚石薄膜涂层刀具较适合应用于高体分SiCp/Al复合材料的粗加工或半精加工。
이65％고체분SiC과립증강려기（ SiCp/Al）복합재료위시건재료，채용열사화학기상침적（ Chemical Vapor Deposi-tion，CVD）법제비적경질합금상규（μm급）금강석박막도층입식건조선도진행선삭시험，연구선삭력적변화규률、공건표면적미관형모，이급도구적마손화도구수명，병여미도층경질합금선도진행대비，분석료해재료적선삭궤리，평개료금강석박막도층선도적도층효과。결과표명：재상동적절삭용량조건하，금강석도층도구비미도층경질합금도구적각향선삭력강저20％～60％；가공초기，미도층경질합금도구소획득적공건표면질량교호，단재가공중후기，미도층경질합금도구소획득적공건표면질량신속악화，이금강석도층도구소가공공건적표면질량교위은정，도구수명비미도층경질합금도구제고료3～5배，인차，상규금강석박막도층도구교괄합응용우고체분SiCp/Al복합재료적조가공혹반정가공。
Milling experiments are performed on SiC particle reinforced aluminum-matrix ( SiCp/Al) composites with high content of 65%SiC by using the carbide conventional micron diamond films coated vertical slot miller prepared in virtue of hot filament chemical vapor deposition .Compared with that of uncoated carbide cutter ,the mechanism of the milling material is analyzed and the coating effect of diamond films coated tool is evaluated from such respects as the variation of cutting force ,workpiece surface morphology analysis ,tool wear and service life .Results show that in the same cutting conditions ,cutting force in the different di-rection with the diamond films coated tool is reduced about 20% to 60%.Besides,in the early processing the obtained surface quality with the uncoated carbide tool is better ,but suffers rapid deterioration in the late processing .Comparatively,the surface quality of the workpiece with the diamond films coated tool is more stable and tool life is increased by 3 to 5 times.Therefore,the conventional diamond films coated tool is more suitable to the rough machining or semi -finishing of such high volume fraction composites.