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在成都工具研究所原有切削工艺数据库的基础上,开发了基于Internet会员制的切削工艺数据库网上查询系统,介绍了系统的开发技术,包括网络开发环境的建立、PHP与数据库的连接、用户管理、安全管理、网页的编制以及查询使用等。 相似文献
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针对当前切削数据库无法主动推送数据的局限性,利用移动设备随时随地可用的优势,以MQTT(Message Queuing Telemetry Transport,消息队列遥测传输协议)协议为基础,设计和开发了一种面向Android移动终端的切削数据主动推送系统,研究了系统架构、消息推送等领域的关键技术。测试结果表明:该系统在用户参与切削加工任务时,能够完成相关切削数据、设备信息、加工结果信息等的推送,同时实现了用户注册登录、身份验证、任务查询、自动订阅、切削数据主动推送、数据库查询修改等功能。 相似文献
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难加工材料的高速切削数据库系统主要是通过对加工实例进行分析归纳,收集和分析概括高速切削用量参数,并通过制作加工动画模拟,以Web形式为难加工材料的高速切削加工提供一定的参考,同时建立查询系统,方便查询优化后的高速切削参数,提高切削效率. 相似文献
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陶瓷刀具切削数据库管理系统的建立 总被引:3,自引:2,他引:3
为实现对陶瓷刀具各种信息的查询及管理,以PowerBuilder8.0为平台,运用Microsoft SQL Server2000数据库管理系统,建立了陶瓷刀具切削数据库管理系统,可快速查询陶瓷刀具的各种加工信息,如切削用量、刀具几何参数,给现场人员提供必要的咨询。使用该数据库可方便实现陶瓷刀具管理,实现了陶瓷刀具加工不同工件时相关信息管理的规范化、科学化。 相似文献
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介绍了标准药品红外光谱信息查询系统的程序设计和应用方法.系统程序用 Microsoft VB语言编写,在Windows平台上运行.数据库用 Microsoft Access软件管理.系统数据库包含标准药品红外光谱1100多张,可以分别按药品的中文名称、英文名称、原子数、分子式或光谱编号进行查询,得到试样药品的相关信息及其标准谱图·系统程序还允许用户将本专业一些常用化合物的有关信息及其标准红外光谱图添加进数据库,以供日后查询. 相似文献
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将Struts、spring喀和Hibernate架构技术应用于地铁车体设计平台系统开发,按照MVC设计模式将系统分成表示层、持久层、业务层和域模块等四部分,提高了系统的开发效率、可维护性和健壮性.配置了truts、Spring和Hibernate的相关文件.平台可支持结构化查询、参数化查询、可视化查询和协同设计.运用面向对象的思想和Java语言发布了一个地铁车体设计平台.实际应用表明,该系统能有效地应用于车体开发中的产品数据管理. 相似文献
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基于.NET框架,在Visual Studio 2005环境中开发了星载雷达非金属材料查询系统,前台Web页面和后台数据库分别采用ASP.NET和Oracle9i进行开发。该系统能够在企业局域网范围内实现对星载雷达非金属材料相关信息的查询,且通过登录管理员帐户,可以实现对材料信息的数据维护。该系统有效实现了知识共享,为... 相似文献
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陈佩江 《机械制造与自动化》2007,36(3):94-95,98
针对切削数据的复杂性和不规则性,设计并建立了一个系统化的通用切削数据库系统.该系统对工件材料进行分类和编号,可简化数据结构,降低数据冗余;通过对数据库数据的查询,可为用户提供科学可靠的切削参数. 相似文献
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MACHINABILITY OF NICKEL-BASED HIGH TEMPERATURE ALLOYS 总被引:2,自引:0,他引:2
Nickel-based high temperature alloys have excellent physical properties, which make them ideal for use in the manufacture of aerospace components. However, they exhibit poor machinability. Though conventional machining in industries is currently being carried out using carbide tools, there is little scope for improving the material removal rate. Machining, being a major operation, needs to be improved in order to reduce the throughput time. High Speed Machining (HSM) is a promising technique for increasing productivity in this regard. This paper mostly reviews research and development work in the machining of nickel-based high temperature alloys carried out over the last 15 years with the objective of assessing the present scenario. Emphasis is laid on Inconel 718, which is most commonly used. Both turning and milling operations using conventional and High Speed (HS) machining are reviewed herein. HSM is discussed at length in comparison with conventional machining, as it is possible to drastically improve material removal rate using HSM. In addition to the study of insert materials and tool geometry, other aspects affecting HSM are also discussed. Surface integrity of Inconel 718 obtained through HSM and the recently developed technique of Plasma Enhanced Machining (PEM) is also addressed. 相似文献
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Abstract Nickel-based high temperature alloys have excellent physical properties, which make them ideal for use in the manufacture of aerospace components. However, they exhibit poor machinability. Though conventional machining in industries is currently being carried out using carbide tools, there is little scope for improving the material removal rate. Machining, being a major operation, needs to be improved in order to reduce the throughput time. High Speed Machining (HSM) is a promising technique for increasing productivity in this regard. This paper mostly reviews research and development work in the machining of nickel-based high temperature alloys carried out over the last 15 years with the objective of assessing the present scenario. Emphasis is laid on Inconel 718, which is most commonly used. Both turning and milling operations using conventional and High Speed (HS) machining are reviewed herein. HSM is discussed at length in comparison with conventional machining, as it is possible to drastically improve material removal rate using HSM. In addition to the study of insert materials and tool geometry, other aspects affecting HSM are also discussed. Surface integrity of Inconel 718 obtained through HSM and the recently developed technique of Plasma Enhanced Machining (PEM) is also addressed. 相似文献
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通过描述高速切削加工(HSM)技术的涵义,对高速切削加工技术的优点进行了详细阐述,并介绍该技术在模具制造中的具体应用实例,还对高速切削加工技术的未来发展进行了展望。 相似文献
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本体思想在高速切削专家系统中的应用 总被引:3,自引:0,他引:3
为共享和重用高速切削领域内已有知识,把本体思想引入到该领域的知识表示中,提出了基于概念、关系、属性、规则和实例五要素的高速切削领域本体的形式化定义,建立了高速切削领域本体库.采用巴科斯范式对领域本体进行统一的描述和表达,并利用关系数据库的形式存储.以本体库作为专家系统的知识库,采用实例相似度及切削参数智能优化相结合的检索推理机制,构建了高速切削专家系统.系统为高速切削知识的检索、重用与共享提供了一个有效的平台,从而实现对高速切削领域内已有知识最大限度的利用. 相似文献
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Ching-Wei Wu Chia-Hui Tang Ching-Feng Chang Ying-Shing Shiao 《The International Journal of Advanced Manufacturing Technology》2012,59(5-8):681-689
High-speed machining (HSM) technology has become the most important application in metal cutting industries. However, overcome the positioning error is one of a great concern. The position error happens due to poor machine structure design and thermal expansion comes from cutting, especially when HSM is applied. In this paper, a new technique is developed to compensate for these errors. The thermal images are used to confirm dispersion of all the affect positions. PT-100 thermo-measuring sensors are applied to detect the thermal expansion. And a mathematical model is built by multi-variable regression analysis, which is based on the sensed temperature variation and the thermal expansion. Finally, these errors are reduced significantly by sending a feedback to the microprocessor. Meanwhile, the thermal deformation can be compensated by the mathematical model, under the condition when the machine is equipped with linear encoder. Moreover, based on the simulation, it is possible to reduce the number of sensors from ten to six, which save the memory capacity and great benefit for calculating and speeding the process of algorithm. The model improves the accuracy of machining which meets the precision requirement of HSM technology. As the result of various machining tests, the axial positioning error can be reduced from 20 μm to be 3 μm, which is a significantly improvement than existing methods. 相似文献