...Kevin Russell; Lyonel Reinhardt In an effort to produce a more secure assembly fit between the primer and the cartridge case in 5.56 mm combat ammunition, variants of the conventional case stamping tool were developed and incorporated in the small caliber ammunition manufacturing process (or SCAMP...

...T. Hussain; Z. Yang; A. A. Popov; S. McWilliam For assembly of rotating machines, such as machining tools, industrial turbomachinery, or aircraft gas turbine engines, parts need to be assembled in order to avoid internal bending of the geometric axis of the rotor to meet functional and vibration...

...Andres G. Abad; Kamran Paynabar; Jionghua Judy Jin With the increase of market fluctuation, assembly systems moved from a mass production scheme to a mass customization scheme. Mixed model assembly systems (MMASs) have been recognized as enablers of mass customization manufacturing. However...

...Christoph Heinle; Martina Vetter; Gottfried W. Ehrenstein; Dietmar Drummer Offering a large variety of options, assembly injection molding represents an innovative and highly integrative technique of manufacturing mechatronic systems. This is due to the fact that it combines many technical...

...A. Ananthanarayanan; S. K. Gupta; H. A. Bruck In-mold assembly can be used to create mesoscale articulating polymeric joints that enable the miniaturization of devices, reduction in production costs, and increase in throughput. One of the major challenges in miniaturizing devices using the in-mold...

...Hui Wang; Jeonghan Ko; Xiaowei Zhu; S. Jack Hu A complexity measure for assembly supply chains has been proposed based on Shannon’s information entropy. This paper extends the definition of such a measure by incorporating the detailed information of the supply chain structure, the number...

...Zhenyu Kong; Wenzhen Huang; Asil Oztekin Modeling of variation propagation in multistation assembly processes is crucial in predicting product dimensional quality and general performance of manufacturing systems. Based on the state space modeling, this paper develops a variation propagation model...

...Dongyul Lee; Ki Eak Kwon; Jaeyeol Lee; Haeseong Jee; Hyunjune Yim; Seong Wook Cho; Jong-Gye Shin; Gyubong Lee A general and efficient methodology has been developed to analyze dimensional variations of a welded assembly, taking into account of weld distortion. Weld distortion is generally...

...L. Eduardo Izquierdo; S. Jack Hu; Hao Du; Ran Jin; Haeseong Jee; Jianjun Shi Reconfigurable assembly systems enable a family of products to be assembled in a single system by adjusting and reconfiguring fixtures according to each product. The sharing of fixtures among different products impacts...

... in the absence of resource constraints is obtained. In the presence of resource constraints, two prioritization methods are proposed to obtain effective maintenance policies for a multiple machine system. A case study focusing on a section of an automotive assembly line is used to illustrate the effectiveness...

...R. Alan Bowman A gradient-based optimization approach is employed to select design tolerances for the component dimensions of a mechanical assembly to minimize manufacturing cost while achieving a desired probability of meeting functional requirements, known as the yield. Key to the feasibility...

...Georg Ungemach; Frank Mantwill The geometric deviations of real parts pose a major challenge, particularly in the extensively automated mass production of complex assemblies. To meet this challenge, an attempt is made, with the aid of statistical tolerance analysis, to predict dimensional accuracy...

...T. Phoomboplab; D. Ceglarek Fixtures control the positions and orientations of parts in an assembly process. Inaccuracies of fixture locators or nonoptimal fixture layouts can result in the deviation of a workpiece from its design nominal and lead to overall product dimensional variability and low...

...Xiaowei Zhu; S. Jack Hu; Yoram Koren; Samuel P. Marin Mixed-model assembly lines have been recognized as a major enabler to handle product variety. However, the assembly process becomes very complex when the number of product variants is high, which, in turn, may impact the system performance...

...Lai Xinmin; Tian Zhaoqing; Lin Zhongqin The fault diagnosis plays an important role for product quality improvement in the multistation assembly processes (MAPs) and the efficiency of diagnosis significantly depends on the sensor distribution strategy, such as the number and location of the sensor...

.... The effectiveness of the proposed methodology is demonstrated in a case study of a three-stage assembly process. A case study of a three-stage assembly process, as shown in Fig. 8 , is conducted to demonstrate the effectiveness of the proposed methodology. In this process, three panel parts are assembled...

...Z. Li; L. E. Izquierdo; M. Kokkolaras; S. J. Hu; P. Y. Papalambros Cost and dimensional variation of products are significant attributes in multistation assembly processes. These attributes depend on product∕process tolerances and fixture layouts. Typically, tolerance allocation and fixture layout...

...Zhenyu Kong; Dariusz Ceglarek; Wenzhen Huang Dimensional control has a significant impact on overall product quality and performance of large and complex multistation assembly systems. To date, the identification of process-related faults that cause large variations of key product characteristics...

...Kang Xie; Lee Wells; Jaime A. Camelio; Byeng D. Youn Dimensional variation is inherent to any manufacturing process. In order to minimize its impact on assembly products it is important to understand how the variation propagates through the assembly process. Unfortunately, manufacturing processes...

...Wenzhen Huang; Jijun Lin; Zhenyu Kong; Dariusz Ceglarek A 3D rigid assembly modeling technique is developed for stream of variation analysis (SOVA) in multi-station processes. An assembly process is modeled as a spatial indexed state transition dynamic system. The model takes into account product...