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钛合金环形薄壁零件加工工艺研究 总被引:2,自引:0,他引:2
通过定制的工艺装备,将一种小电机中的环形薄壁零件加工至要求尺寸,并保证零件的同轴度和表面光洁度。对工件的材料、装夹方式及加工中的受力分析等方面做了分析。 相似文献
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四刀住数控车加工带孔的小型工件时由于刀位不足不能一次加工成形,分工序加工生产效率较低。为了解决这一难题设计制作了一种排刀装置,该装置可一次装夹多把内孔刀具,使该类零件一次加工成形得以实现。从而提高了该类零件在四刀位数控车床上加工的生产效率。 相似文献
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以某特钢厂制氧车间高压大型异步电动机的全压启动计算为例,分别采用电压波动计算法、简化计算法、阻抗导纳法进行计算。通过理论计算值与实测值的比较,向读者推荐较为接近实际的阻抗导纳法,这对论证大型异步电动机的启动计算,提供了有益的帮助。 相似文献
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To actively respond to the call for green shipbuilding, block cooperative transportation has been particularly concerned in reducing carbon emission in the shipyard, and hence a “multi-vehicle and one-cargo” (MVOC) green transportation scheduling problem emerges. Aiming to solve this problem effectively and improve transportation efficiency and reduce energy consumption, a bi-objective mathematical model combined routing model with synchronization constraints is proposed to simultaneously minimize non-value-added transportation time cost and total CO2 emission. A Pareto-based multi-objective Tabu Search (MOTS) algorithm is then designed to solve the model, in which local improvements are developed to generate promising neighboring individuals. Experimental results show that the proposed MOTS algorithm can effectively solve the problem even on a large scale and outperform the classic algorithm of nondominated sorting genetic algorithm-II (NSGA-Ⅱ). It is hoped that this work enables an operation mode with high efficiency and low energy consumption and provides useful insights for flatcar transportation scheduling operators in the shipyard. 相似文献
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介绍了安钢60Si2Mn热轧盘条的工艺特点、产品质量,及其在铁路弹簧扣件生产中的应用。冶炼工艺采取了多项关键技术以实现窄成分控制和钢水洁净度控制,保证了铸坯无缺陷生产;利用摩根第六代高速线材生产工艺设备,采用控轧控冷,盘条尺寸精确控制在13~13.2mm,抗拉强度为950~1050MPa,面缩为36%~47%,硬度为269~288HRB,组织为S+P+F,脱碳层深度小于1%D;生产的60Si2Mn弹条硬度为41~46HRC,组织为均匀回火索氏体,疲劳试验达到700万次无损坏,残余变形小于1mm,完全满足TB/T 1495.2和用户要求。 相似文献
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