Results 31 to 40 of about 195 (98)
Jixie chuandong, 2013 The 3-D models of various kinds of cylindrical gears are generated through simulation of rack cutter gear shaping in the light of the principle of cutting gears with the generation method by using AutoLISP language program.The program that takes various ...
周太平, 谢世坤, 康志成
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Jixie chuandong, 2010 High-speed dry hobbing is a high efficiency green technology in gear manufacturing developed in recent years,which has overcome the disadvantage of traditional gear machining including low productive efficiency,high productive costs,polluting environment
周鹏举, 林超, 陆大成, 钟小平
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Jixie chuandong, 2003 Based on investigating and cutting test, Hobbing technology anaiysis of surface hardened gear with carbide hob was made. Design and cutting condition of carbide hob with radial negative front angle were discussed.
张晋
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Jixie chuandong, 2011 In order to solve the problems existing in geometric simulation of spiral bevel gear and hypoid gear cutting process,such as slow speed,low precision and lack of independence,slice algorithm is presented.The five axis numerical control simulation system ...
李敬财 +4 more
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AutoLISP环境下模拟范成法切削生成齿轮模型及齿厚控制与测量
Jixie chuandong, 2010 A discussion of using AuotLISP to develop programs and simulation using generation method to cut and generate the 3-D models of gears is presented. The gear models are obtained through cutting,and the involute and the transition curve of tooth profile of
周太平, 叶爱雪, 张蓬
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Jixie chuandong, 2008 The process of high-speed dry gear milling by single tooth flying cutter is discussed taking these factors such as the regenerate domino effect of milling liberation,non-continuous cutting and cutting thickness into account,the kinetics’ model of this ...
郭茜, 李庆
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Jixie chuandong, 2010 Chipping and breakage happened frequently for tools in wood cutting process because of anisotropy of wood and high speed of cutting.Especially in the cut-in process,tools bear great impact.By means of ADAMS,the cut-in process for wood milling of direct ...
张国梁, 刘志军, 李成华
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Jixie chuandong, 2006 According to the knowledge of Heat Transfer and Metal Cutting Theory, high-speed dry gear milling by flying cutter to simulate the gear hobbing process is adopted.
林超, 周鹏举, 丘华
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Shiyou jixie, 2015 通过地质钻探对赋藏岩心进行取样是最为直观有效的水合物勘探方法。钻头钻进过程中往往会产生较高的温升，天然气水合物赋藏岩层对外界条件又具有非常高的敏感性，其周围温度和压力条件的改变会使水合物分解。为此，建立有限元模型并对钻头破岩过程进行仿真模拟，重点研究了取样钻头、水合物赋藏岩层以及岩心样品的温度分布和变化情况。研究结果表明，取样过程中温升较高的区域主要集中在井底，最高温升在井底呈散点状分布；钻头钻进时切削齿前端面尖点首先与岩层接触产生摩擦热，热量由尖点向内部传递导致温度梯度；钻速越高，钻头转速越快 ...
段小龙 +4 more
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Shiyou jixie, 2015 为提高页岩气钻井效率、减少钻头泥包，根据现场常用PDC钻头建立三维流域模型，将岩屑模拟为从井底面射入流场的球状颗粒，用拉格朗日粒子追踪法描述固相，将钻头体DPM边界条件设置为捕获，以岩屑颗粒捕获率作为反映泥包可能性的评价参数，结合井底流场结构特点，模拟分析了岩屑输运与黏附规律。数值模拟结果表明，井底岩屑输运时沿程存在碰撞与反弹的不规则三维运动，这导致部分岩屑黏附到钻头体表面；对于不同尺寸的岩屑颗粒，各刀翼和排屑槽的岩屑颗粒捕获率Ra呈类似的变化规律，当岩屑粒径为10 mm时Ra最大，当粒径小于1 mm时，
陈修平 +5 more
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