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QT500-7 球墨铸铁件切削参数优化简介，球墨铸铁以其优越的抗冲击性、很高的抗拉强度及铸铁独有的优秀的锻造性、耐磨性、抗疲惫性及经济性等长处普遍运用于机械制作工业的各类零部件。本文针对公司球墨铸铁件切削加工中存在的成绩(如进排气管进程中发生的毛刺)，经由过程无限元建模剖析和切削实验，摸索球墨铸铁切削进程中切削毛刺的构成机理，并进一步摸索球墨铸铁的切削机能，为进步产物质量、下降切削本钱供给工艺指点。本文起首基于无限元建模，对球墨铸铁的铣削进程停止了仿真剖析，仿真注解球墨铸铁铣削进程等效应变和温度具有类似的散布纪律。切削毛刺仿真注解，毛刺构成进程中，温度逐步降低，毛刺的年夜小与温度降低的连续时光相干。进一步的切削实验注解速度和进给量对毛刺的影响较小，而切深影响较年夜。同时对球墨铸铁铣削加工机能停止了实验研讨。研讨注解球墨铸铁外面粗拙度跟着铣削速度的增年夜而减小;跟着进给量和切深的增年夜而增年夜。切削速度较低时，球墨铸铁切屑比拟短，呈屑状。跟着切削速度的进步，切屑呈修长状。切深与进给量较小时，切屑呈屑状，跟着切深与进给量的进步，切屑呈修长状。以硬质合金刀具铣削球墨铸铁时，其掉效情势重要是磨粒磨损。本文研讨注解 DEFORM软件可以有用模仿球墨铸铁的铣削进程，基于切削进程等效应力、等效应变云图及温度云图仿真剖析，可为现实切削供给根据。本文研讨结果已运用于现实临盆中，对现实切削加工参数停止了优化，克制了切削毛刺的生成，有用进步了产物质量。
Ductile iron with its superior impact resistance, high tensile strength and unique excellent cast iron, forging, wear resistance, fatigue resistance and economic advantages, such as the general use of various parts of machinery manufacturing industry. The in view of the existing company nodular cast iron parts machining results (such as the exhaust pipe occurred in the process of Burr), through the process of infinite element modeling analysis and cutting experiments, and explore the formation mechanism of the ductile cutting process in cutting burr, and further exploration of nodular cast iron cutting function, for improve the quality of products, decrease the cutting process the cost of providing advice. In this paper, based on the infinite element modeling, the milling process of the nodular cast iron is simulated, and the equivalent strain and temperature of the milling process of the ductile iron are similar. Simulation of cutting burr, burr formation process, the temperature gradually reduced, the size of the small and the temperature of the small and the temperature of the continuous time. The effect of cutting speed and feed rate on the burr is smaller, but the depth of the cut is more profound. At the same time, the experimental research on the function of the milling machine of the ductile cast iron is stopped. The research notes that the outside of the ductile cast iron decreases with the increase of the milling speed, and the increase of the feed rate and the depth of the cut. When the cutting speed is lower, the ball graphite cast iron has a short chip, which is a chip. Along with the progress of the cutting speed, the chip is slender. Cutting depth and feed rate of the chip is a chip, followed by cutting depth and feed rate of progress, chip was slender. In the hard alloy cutting tools, the failure form of the milling of ductile cast iron is important. In this paper, the DEFORM software can simulate the milling process of nodular cast iron, and the equivalent stress, equivalent stress, equivalent stress, and the simulation analysis of the temperature contours can be the basis for the real cutting. The purpose of this paper is to study the results have been applied in actual production, the reality of cutting parameters optimization and restraint of the cutting burr formation, useful progress the quality of products.
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