论文部分内容阅读
目的:镍基合金是一种难加工材料,在磨削时工件表面经常会出现烧伤、弹性形变和白层。本文拟通过3种不同镍基合金工件(Nickel 201,INCONEL~?600和MONEL~?400)的平面磨削实验,研究在采用微量润滑方法进行冷却时,两种不同类型磨削液对磨削力和工件表面粗糙度的影响规律。同时,研究砂轮结构对磨削过程和磨削结果的影响。创新点:通过实验比较2种磨削液对3种镍基合金工件磨削结果的不同影响,为在采用微量润滑方法时的磨削液合理选择提供有益借鉴,也为绿色制造、可持续生产或清洁生产等制造技术的发展提供技术支撑。方法:1.对每个试件表面进行多行程无火花磨削预处理,并采用浇注式冷却;2.进行单程磨削实验(图2),并采用微量润滑方法进行冷却;3.在磨削表面标记3个区域,比较在不同磨削液、工件材料及砂轮结构条件下,每个区域平均切向力和表面粗糙度值的变化情况。结论:1.磨削表面粗糙度与磨削切向力成反比,Nickel201和INCONEL~?600的表现尤为明显。2.不同的镍基合金材料工件磨削时的切向力和表面粗糙度有很大不同,MONEL~?400获得的磨削效果最好。3.初始单程磨削实验方法可以用来评价砂轮切入3个磨削区磨削状态的异同;不同磨削区域的磨削结果差异较大。4.Biocut 3000磨削液可以获得比Ecocut Mikro Plus 82磨削液更好的磨削表面,但磨削力也相应增大。5.砂轮结构的不同对磨削结果没有太大影响。
OBJECTIVE: Nickel-based alloys are a difficult to machine material that often burns, deforms elastically and whitens the surface of the workpiece during grinding. In this paper, three kinds of nickel-based alloy workpiece (Nickel 201, INCONEL ~ 600 and MONEL ~? 400) plane grinding experiments to study the use of micro-lubrication method for cooling, the two different types of grinding fluid on the grinding The influence of force and workpiece surface roughness. At the same time, the effect of grinding wheel structure on grinding process and grinding result is studied. Innovative point: Through experiments, we compare the different effects of two kinds of grinding fluid on the grinding results of three kinds of nickel-base alloy workpiece, provide useful reference for the selection of grinding fluid when using micro-lubrication method, and also make green manufacturing and sustainable production Or clean production and other manufacturing technologies to provide technical support. Methods: 1. Perform multi-stroke non-spark grinding pretreatment on the surface of each specimen and adopt pouring cooling; 2. Carry out one-way grinding experiment (Figure 2) and apply micro-lubrication method to cool; Three areas were marked on the surface, and the average tangential force and surface roughness of each area were compared under different grinding fluid, workpiece materials and wheel structure. Conclusions: 1. The grinding surface roughness is inversely proportional to the grinding tangential force, especially for Nickel 201 and INCONEL 600. 2. Different nickel-based alloy material grinding workpiece tangential force and surface roughness are very different, MONEL ~? 400 get the best grinding effect. 3. The initial one-way grinding experiment method can be used to evaluate the similarities and differences of the grinding state of the three grinding areas when the grinding wheel is cut in. The grinding results in different grinding areas are quite different. 4.Biocut 3000 grinding fluid can get a better grinding surface than Ecocut Mikro Plus 82 grinding fluid, but grinding force also increases accordingly. 5. Different grinding wheel structure has no big effect on the grinding result.