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《现代制造技术与装备》2017,(12)
随着数控加工的发展,普通数控车、铣已无法满足产品加工的要求。对于六方套零件的加工,采用数控车、铣加工工序多,加工时间长,效率低。采用数控车铣复合加工可以缩短产品制造工艺链,提高生产效率;减少装夹次数,提高加工精度。本文主要介绍六方套零件的工艺分析、切削用量的选择和车铣复合中心编程。 相似文献
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为探讨车铣复合加工在《数控编程》课程中教学方法,以机械零件高效率、高质量数控编程为目标,采用UG CAM模块车铣钻加工类型,采用优化的数控加工工艺对零件进行数控加工编程,并采用自定义的后处理文件生成了相应数控系统的数控代码。实验结果表明该零件的加工质量达到了预期的加工要求,对该课程的教学与研究具有重要的指导意义。 相似文献
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刘智 《现代制造技术与装备》2022,(1):142-144
数控车铣在机械加工领域应用广泛,优化数控车铣切削加工的工艺参数,对提高工件质量与企业生产效益至关重要.基于此,介绍了数控车铣的基本组成与工作原理,阐述了编程数据处理、刀具的性能与参数、切削路线等影响数控车铣切削加工精度的因素,并结合数控车铣加工特点,对切削加工工艺参数进行了优化,以提高数控车铣加工精度,降低成本,提高效... 相似文献
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在FANUC数控系统进行编程,采用正交车铣加工方式对渐开线外齿轮齿廓进行了宏程序数控加工编程,并且在Mazak200Y数控车铣加工中心上完成了切削加工,经检测齿廓加工精度及表面粗糙度达到加工要求。 相似文献
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针对闭式叶轮,提出了叶轮建模和车铣复合加工工艺方法,利用UG软件编制了数控加工程序,开发了基于VC的数控机床后置处理器,利用VERICUT软件进行仿真加工,最后经过实例加工证明了方法的可行性和正确性. 相似文献
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EdgeCAM下三拐曲轴的车铣复合加工 总被引:1,自引:0,他引:1
基于EdgeCAM的车铣复合加工,对三拐曲轴的传统加工工艺进行改进,通过CAD及CAM软件在数控加工前进行仿真。重点阐述车铣复合加工与传统加工工艺在工序安排、刀具选择、切削用量设置上的区别,并将这些工艺参数输入EdgeCAM中进行加工仿真。 相似文献
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具有车铣能力的车铣加工中心是实现完整加工的典型机床,更由于车铣技术在加工微小型回转类零件中所拥有的独特优势,使微小型零件的完整加工成为可能;加工实验证明,对于以回转体为基体的微小型零件的加工,车铣加工中心将微细车铣技术和完整加工完美地结合在一起. 相似文献
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在车铣复合加工中心上,进行了车铣加工高强度钢工件材料的刀具磨损强度实验,分析了车铣切削用量对刀具磨损强度的影响.研究表明,在影响车铣刀具磨损的切削用量中,切削速度对车铣刀具的磨损强度影响最大.并以车铣刀具的磨损实验为基础,以切削速度为变量,建立了车铣高强度钢的刀具磨损强度分析模型. 相似文献
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车铣复合加工在现代数控加工技术中,发挥着日益重要的作用。针对典型结构件,研究了基于PartMaker的车铣复合加工技术。以典型的轴类零件为例,首先,选择加工机床,进行工艺设计;然后,利用PartMaker软件,编制数控程序并进行后置处理,生成机床加工程序,利用VERICUT软件构建了加工仿真模型,并对机床程序进行了仿真加工;最后,通过实际加工得到了合格的零件,验证了加工方法的可行性。 相似文献
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高速轴向车铣45钢刀具磨损的研究 总被引:1,自引:0,他引:1
介绍了轴向车铣加工的特点,通过试验得到了高速轴向车铣加工45钢时刀具的磨损曲线,分析了在水冷和干切削时TiN涂层和金属陶瓷刀具的磨损特点,得出采用干切削更有利于延长刀具使用寿命,且TiN涂层刀具比金属陶瓷刀具更适合高速轴向车铣加工45钢. 相似文献
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A turn-milling machine, which is a device having two spindles that rotate a tool and workpiece, can be used to fabricate various shapes by cutting. However, little progress has been made in microcutting using a turn-milling machine. Therefore, a micro turn-milling machine designed especially for microtools was developed and used to fabricate micropins with various cross sections. Cemented tungsten carbide microtools, which are useful both as a milling cutter and as a turning tool, were processed by electrical discharge machining and employed for microcutting. As a result, various micropins were successfully fabricated, including not only cylindrical pins but also those with cross sections having square, triangle, and cross shapes. These noncylindrical micropins have the smallest reported cross-section dimensions for pins fabricated by cutting to the best of our knowledge. Furthermore, cutting characteristics such as the machined shape and surface quality were investigated, which showed that better micropin shapes were obtained by up-cut turn-milling than by down-cut turn-milling or by turning. In contrast, turning was superior to turn-milling in terms of the surface quality. 相似文献
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A web-based virtual system for turn-milling center 总被引:1,自引:1,他引:0
Tianbiao Yu Xuewei Zhang Weili Liang Wanshan Wang 《The International Journal of Advanced Manufacturing Technology》2013,67(9-12):2395-2409
This paper presents a three-dimensional, web-based, interactive simulation system for turn-milling center. To overcome the disadvantages of transferring files over the Internet and depending on expensive computer-aided design (CAD)/computer-aided manufacturing (CAM) softwares, the system is developed by virtual reality modeling language (VRML)/JavaScript interaction. The system files produced by machining simulation have small size, and could be transmitted on the web easily. Firstly, a dynamic interactive technology based on VRML and JavaScript, which is essential to a web-based simulation system, has been presented in this paper. Secondly, the geometric and kinematic model is created for representing the turn-milling center motion. Then, the key technologies for machining simulation including material removal, NC codes compiling and collision detection are studied. Finally, to validate feasibility of the proposed system, the virtual machining process for a stepped shaft in the machine tool is carried out. Since the system realizes multiple dynamic demonstrations of virtual machine tool, users can comprehensively understand the product performance. The research for the web-based virtual system of turn-milling center has important research value and application prospect. 相似文献
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硬质合金刀具高速车铣和铣削TC4钛合金磨损试验对比 总被引:1,自引:0,他引:1
采用H13A未涂层硬质合金刀具对TC4钛合金进行高速正交车铣和铣削试验,并从刀具磨损破损形态、磨损机理及其寿命等方面进行对比分析。研究表明:高速正交车铣和铣削钛合金时,前、后刀面主要以粘结磨损为主,车铣加工时在切削刃口易形成积屑瘤及连续切屑,但对刀具材料粘结较轻;高速铣削时,对刀具材料粘接较重,在前刀面刃口附近形成凹坑及崩刃;后刀面最大磨损的位置不相同。试验对比了相同切削条件时刀具使用寿命,结果表明采用正交车铣加工可以获得更长的刀具使用寿命。 相似文献