A New Method for Selective Assembly

该拨款为开发制造中选择性组装的新方法提供资金，允许使用低精度配合零件来实现高精度机械产品。 该方法为装配前预测配合件的匹配程度提供了一个数学模型，并相应地为如何调整制造工艺以保证配合件之间的匹配提供了一个定量的依据。 在选择装配设计中，为了使剩余零件最少，对每个选择组的加工公差范围进行最优分配，提出了一种递归算法。 将进行实验工作和工业测试，以验证和进一步改进所开发的新方法。 如果成功的话，本研究的成果将对制造业产生重大影响，通过降低机械零件的制造生产成本来提高其竞争力。研究结果还将为具有高配合精度要求的配合件的设计、制造和装配提供有效的集成。 具体而言，该研究项目的成果将提供一种全新但更有效的选择性装配设计方法，通过以更低的成本实现更严格的公差来提高机械产品性能。 特别是，提出的新的选择性组装方法将对小企业行业产生重大的经济影响，以实现基于其有限的制造设施的高精度机械产品。

This grant provides funding for the development of a new method for selective assembly in manufacturing to allow the use of low precision mating parts to achieve high precision mechanical products. The new method will provide a mathematical model to predict the matchable degree of mating parts before assembly, and correspondingly a quantitative criterion on how to adjust manufacturing processes so that the desired match between mating parts could be guaranteed. A recursive algorithm will be developed and implemented in design of selective assembly for optimally allocating the machining tolerance range for each selective group to achieve the minimum surplus parts. Experimental work and industrial testing will be carried out to validate and further improve the new method developed. If successful, the results of this research will have a significant impact on manufacturing industries to improve their competitiveness through reduced manufacturing production cost of mechanical parts. The results will also provide effective integration of design, manufacture and assembly of mating parts that have high fit accuracy requirements. Specifically, the outcomes of the research project will provide a completely new yet much more effective way to design for selective assembly with the capability to improve mechanical product performance by achieving tighter tolerances at lower cost. In particular, the proposed new selective assembly method will have a significant economical impact on small-business industries to achieve high precision mechanical products based on their limited manufacturing facilities.