共查询到19条相似文献,搜索用时 187 毫秒
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为了克服应用传统的过程实效模式与影响分析(PFMEA)时对失效模式的风险顺序识别度不高的问题,在防抱死制动系统(ABS)阀体制造中提出了具有模糊综合评价的PFMEA方法.通过将专家评估与系数变异相结合的方法,分别获得了评价因素集、因素权集、评价等级集.通过模糊综合评价可以计算等级值和最终的风险顺序.这一方法在ABS阀体制造中得到了有效的应用. 相似文献
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近些年,UHMWPE在民用领域的应用也在逐渐扩大,如航海装备、轨道交通、工具制造和防护用品等领域,因此其未来市场前景被一致看好。随着国内UHMWPE技术和产业的快速发展,这一材料已日渐显现出突破国外对我国高端产品封锁的迹象,国外想'卡'也卡不住。 相似文献
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《中国计量学院学报》2020,(2):199-207
目的:基于区块链技术研究西湖龙井溯源体系。方法:采用PFMEA(潜在失效模式及影响分析)确定西湖龙井生产销售全流程中数据层关键节点,并以此建立基于区块链(Blockchain)技术的西湖龙井溯源体系。结果:以PFMEA为手段对生产流程所采集的数据进行分析,确定了茶园区域、采摘、定级、销售四个环节为数据层关键节点,然后基于区块链建立西湖龙井溯源体系;该体系架构包括数据采集区、数据层、网络层、合约层、应用层等。结论:结合具体应用场景,论证了西湖龙井区块链溯源体系的可行性和有效性。 相似文献
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综合平衡计分卡是从国外引进的一个管理工具,它是一个核心的战略管理与执行的工具、是一种先进的绩效管理工作、是企业各级管理者进行有效沟通的重要工具。昌飞公司是从2009年开始引进这套管理工具。从开发质量管理部门综合平衡计分卡到正式实施,综合平衡计分卡对质量管理工作起到很大的推进作用。 相似文献
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对统计工具应用与Qc小组活动质量的关系进行了分析,简的介绍了QC小组活动中主统计工具方法的应用,针对统计工具方法在Qc小组活动中的应用现状,探讨了如何使用统计技术推广QC小组活动质量,以期指导企业提高自身质量管理水平。 相似文献
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薛龙龙 《中国新技术新产品》2013,(8)
作为公路结构至关重要的组成部分之一,公路路基的重要性是不言而喻的。为了增大公路的寿命,这就要求路基的承受能力需要足够大,不会因为一些重车而导致结构被破坏或者变形,并且,路基的情况也与材料的好坏与关。所以提高路基的质量其实就是选取好的路基材料。这就要求我们在施工之前施工时以及施工后选取恰当的工具、手段以及程序来达到应该的需求,以此来满足路基对公路质量的要求,但是路基的质量通常是通过一种工具来进行检测的,这种手段叫做对压实度。 相似文献
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Failure modes and effects analysis (FMEA) is one potential tool with extended use in reliability engineering for the electrical
and electronic components production field as well as in complicated assemblies (aerospace and automotive industries). The
main purpose is to reveal system weaknesses and thereby minimize the risk of failure occurrence. The FMEA technique is used
in the design stage of a system or product (DFMEA) as well as in the manufacturing process (PFMEA). Currently, the implementation
of quality systems (such as ISO 9001, QS9000, TS 16949, etc.) requires the establishment of preventive procedures; therefore,
the use of risk analysis methods, such as FMEA, is mandatory. This paper introduces the use of this technique in a critical
process in the metal forming industry. 相似文献
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This paper presents an emerging market sourcing risk assessment and management model for sourcing components and sub-systems to emerging markets. The model was developed, tested and implemented by a US automotive manufacturer but the principles and tool discussed here are broadly applicable. We gathered a comprehensive list of risk factors through an intensive literature review and subject matter expert (SME) interviews. We used a process failure mode effect analysis (PFMEA) structure to characterize the risks and developed a simulation model to quantify risk factors in terms of dollars so that an OEM can evaluate risk mitigation strategies. The spreadsheet simulation ranks causes of failures and failure modes and calculates total risk in terms of dollars. In addition to analysing risk, the model evaluates the impact of different inventory levels on the costs of delays in the supply chain. The model can also be used to evaluate and select suppliers that offer minimum risk. We demonstrate the model with a real-world case study involving a North American auto company considering sourcing a component to an emerging market. 相似文献
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多线切割技术是半导体硅片加工产业中的一个新生力量,它以独特的优势迅速成为当前硅切片加工中最先进的方法。机床结构的动态性能直接关系物料的加工质量,为保证机床运行的稳定性,本文对整机动力学性能进行分析,研究机械结构的合理程度。建立本体结构三维模型后,应用有限元方法基于ANSYS软件求解模态,得到各阶固有频率和振型;运用动力学软件ADAMS分析机械系统振动特性,求得机床各关键部件的频率响应。对机构设计的正确性做出理论判断,并为进一步改进指出方向,有利于提高多线切割机的性能和提高加工质量。 相似文献
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Sanjiv Sarin 《工程教育杂志》2000,89(4):495-501
This paper explores similarities and differences between the new ABET accreditation criteria (EC‐2000) and a well‐established quality assurance standard in industry (ISO‐9000 series). The premise of the paper is that an appreciation of EC‐2000 as a tool for quality assurance will lead to greater faculty interest and participation in accreditation‐related activities. Some suggestions are also provided for effective implementation of EC‐2000. 相似文献
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国内外有机硅材料发展动向与建议 总被引:3,自引:0,他引:3
全面论述快速增长的国内外有机硅发展现状;国外几大有机硅公司进入中国市场的情况;国际有机硅技术发展动向;以及国外有机硅工业成功经验及我国差距,并提出关于发展我国有机硅工业的若干建议。 相似文献
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Veerasimman Arumugaprabu Sundaresan Thirumalai Kumaran Rendi Kurniawan Yein Kwak Zhen Yu 《Materials and Manufacturing Processes》2019,34(1):18-29
Recently, the surface texturing of tool/work pieces to improve performance has been investigated in the manufacturing industry. Grinding is employed to produce quality products with improved dimensional accuracy. The combination of grinding and end milling is a suitable method for surface texturing. The present study explains the effect of a textured-pattern end-milling tool on AISI 1045 steel. The effects of the pitch and depth of the pattern are investigated in detail, as are the effects of the input parameters on the cutting force and tool wear. The experimental results show that tool wear is reduced by 53% with surface texturing. Moreover, the surface-textured pattern helps to reduce the cutting force. The tool material wastage which can pose economy threats, can be drastically reduced by increasing the tool life using surface texturing. 相似文献