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In-Process Measurement in Manufacturing Processes
Published in Wasim Ahmed Khan, Ghulam Abbas, Khalid Rahman, Ghulam Hussain, Cedric Aimal Edwin, Functional Reverse Engineering of Machine Tools, 2019
Ahmad Junaid, Muftooh Ur Rehman Siddiqi, Riaz Mohammad, Muhammad Usman Abbasi
On-Machine Measurement (OMM) in combination with the in-process inspection is the major part of the closed-loop manufacturing system. In-process inspection with OMM operation is implemented where the workpiece is being made. This is a part of the production facility and therefore impacts the overall cost estimation. Other than cost of production tools, there are some factors such as maintenance, instrument calibration, training, process time, production environment, and labor associated with the inspection system which should be included in the overall cost [7]. Precise manufacturing of the workpiece is possible; hence, in-process inspection can be found in many industrial applications such as Measuring geometric parts with laser machining [8]Integration of textile production machines with a vision system for inspection of fabric by detecting various defects [9]Vision-system-based automatic deburring of various components of aero engine driven by cutting tool [10]Integrated laser-based roundness measurement using in-process inspection in a turning process [11].
Closing Loops, Easing Strains
Published in Anil Kumar, Jose Arturo Garza-Reyes, Syed Abdul Rehman Khan, Circular Economy for the Management of Operations, 2020
Lucas López-Manuel, Fernando León-Mateos, Antonio Sartal
In the technical cycle, service products, or technical nutrients, are manmade materials that should flow within a closed-loop manufacturing, recovery and reuse system (technical metabolism), without contaminating the biosphere. These technical nutrients (composed of nontoxic durable composite materials) are expected to ‘go back to upstream manufacturing cycles to supply high-quality raw materials for new products' (McDonough and Braungart, 2002, p. 91). Thus, these mineral or synthetic materials would remain within a closed-loop manufacturing system without experiencing any loss of performance or quality (Brennan et al., 2015). The technical cycle underlines the enlargement of a product's life through reuse, repair, remanufacturing and recycling.
Strategies and business models for sustainability
Published in Sigrun M. Wagner, Business and Environmental Sustainability, 2020
Biomimicry involves redesigning industrial systems to mimic nature, which leads to reducing the throughput of materials that are wasteful. Such biomimetic production uses closed-loop manufacturing that prevents waste, such as for example toxic materials that require disposal at a cost, thus demonstrating the synergies with resource efficiency. We will return to biomimicry as a model for sustainable design and the work of Benyus (1997) in Chapter 9 on production and operations. Box 4.8 outlines some general strategies and principles businesses can use by finding inspiration in nature.
Design and optimisation of a green manufacturing-recycling network considering heavy metal pollutants – an electronic assembly case
Published in International Journal of Production Research, 2022
Shan Lu, Weifeng Hou, Zhe Li, Junying Xia, Lei Xie, Hongye Su
From a manufacturing perspective for electronic products, the detailed electronic assembly process requires much more efforts to distinguish the production units and components. In addition, modern electronic assembly plants have implemented closed-loop manufacturing scheme, where the defective modules and components are recycled during the course of assembly (Liu et al. 2019). In general, the closed-loop electronic manufacturing scheme starts with a forward assembly chain, while the reverse recycling chain is incorporated by identification, collection and repair of the defective modules and components. To track the availability and status of the electronic equipment, Nowakowski (2018) presented an innovative data encoding and decoding method using the existing identification system, like 2D-codes or radiofrequency identification. Mashhadi, Behdad, and Zhuang (2016) developed an agent based simulation optimisation framework of the electronic waste recovery system to control time and quality of the incoming used products based on the cloud-based remanufacturing infrastructure. Koskinen et al. (2020) designed a rolling horizon strategy to optimise a dynamic scheduling problem of printed circuit board production with a number of assembly lines, and considered a non-preemptive production programme to insert the unfinished jobs. However, most of the existing research mainly models the recovery system independently, and lacks a systematic approach to synchronise the forward assembly and reverse remanufacturing for the electronic assembly factory.
Robust optimal inventory and acquisition effort decisions in a hybrid manufacturing/remanufacturing system
Published in Journal of Industrial and Production Engineering, 2019
However, offering the acquisition effort to customers also will bring some troubles to the firms. The reason is that forward logistics and reverse logistics exist simultaneously and are interdependent. In addition to the traditional production and selling process, firms also need to consider all product recovery processes, such as used product acquisition, reverse logistics, product disposition, remanufacturing, repair, and remarketing (Guide and Wassenhove [7]). So in a closed-loop supply chain system, decision-makers need to consider more sub-processes and decisions, and any one decision independently considered may lead to the in-coordination of the whole closed-loop management system, which will cause more costs or profit decreasing. Therefore, a more coordinated system including more sub-processes and decisions is more attractive for the firms who want to operate the closed-loop system. In this paper, we will study a closed-loop manufacturing/remanufacturing system, where all activities include used product acquisition, remanufacturing, disposal of returned products, and manufacturing, and product selling.